bazaar

624 services new here? how to pay → · machine-readable: /discovery/resources
https://themes.oddballer.fun/themes

Live net-new theme detection over the pump.fun CREATE firehose — lift-vs-baseline scoring with a hapax floor, so one-off tickers don't register as themes

Robinhood Chain crawled 0x9bdD7829…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:4663",
      "asset": "0x9bdD78296f758af1b048E14E101c90Daa511ADC5",
      "maxAmountRequired": "1000",
      "payTo": "0x3C4ec546e47471321aED2956925E9f0942beB260",
      "resource": "https://themes.oddballer.fun/themes",
      "description": "per request"
    }
  ]
}
https://x402-tokens.fly.dev/v1/chat/completions

OpenAI-compatible chat completions across ~435 models (Anthropic, OpenAI, Google, xAI, DeepSeek, Moonshot and more) with no API key and no account — every call is paid per-request over x402. leCore holographic memory sits in front of the model, so a corpus is bound once and later questions against it cost a fraction of resending it. Pay on Solana or any of six EVM chains in plain USDC/USDG; nothing needs wrapping first.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
2.4e-5per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "maxAmountRequired": "24",
      "payTo": "58AgxZtxYkAzgcGktVyajR7zYi9k4kJmaG94XvwpSasK",
      "resource": "https://x402-tokens.fly.dev/v1/chat/completions",
      "description": "per request, paid in USDC"
    },
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "maxAmountRequired": "24",
      "payTo": "0x26E8134eCC3af5cCE32f34B03E7BD2f318B25158",
      "resource": "https://x402-tokens.fly.dev/v1/chat/completions",
      "description": "per request, paid in USDC"
    },
    {
      "scheme": "exact",
      "network": "eip155:4663",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "maxAmountRequired": "24",
      "payTo": "0x26E8134eCC3af5cCE32f34B03E7BD2f318B25158",
      "resource": "https://x402-tokens.fly.dev/v1/chat/completions",
      "description": "per request, paid in USDG"
    },
    {
      "scheme": "exact",
      "network": "eip155:137",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "maxAmountRequired": "24",
      "payTo": "0x26E8134eCC3af5cCE32f34B03E7BD2f318B25158",
      "resource": "https://x402-tokens.fly.dev/v1/chat/completions",
      "description": "per request, paid in USDC"
    },
    {
      "scheme": "exact",
      "network": "eip155:42161",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "maxAmountRequired": "24",
      "payTo": "0x26E8134eCC3af5cCE32f34B03E7BD2f318B25158",
      "resource": "https://x402-tokens.fly.dev/v1/chat/completions",
      "description": "per request, paid in USDC"
    },
    {
      "scheme": "exact",
      "network": "eip155:10",
      "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
      "maxAmountRequired": "24",
      "payTo": "0x26E8134eCC3af5cCE32f34B03E7BD2f318B25158",
      "resource": "https://x402-tokens.fly.dev/v1/chat/completions",
      "description": "per request, paid in USDC"
    },
    {
      "scheme": "exact",
      "network": "eip155:480",
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "maxAmountRequired": "24",
      "payTo": "0x26E8134eCC3af5cCE32f34B03E7BD2f318B25158",
      "resource": "https://x402-tokens.fly.dev/v1/chat/completions",
      "description": "per request, paid in USDC"
    }
  ]
}
https://api.onesource.io/api/chain/erc20-balance

ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/block-number

Latest Ethereum block height - current chain tip via eth_blockNumber

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/ens/:input

ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/live-balance

Live wallet balance - native ETH plus up to 20 caller-supplied ERC20 tokens in one bounded RPC batch

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://stableenrich.dev/api/fullenrich/people-search

FullEnrich People Search — filter by company domain/name/LinkedIn URL, seniority, title, location, skills, and 20+ FullEnrich filters. Default lean roster: companies map + company_id refs; include_employment_history or verbose for full history. $0.15 when results found; free when no matches.

Base crawled 0x833589fC…
0.15per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "150000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "150000"
    },
    {
      "amount": "150000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426459115",
        "recentBlockhash": "8faPdjro443pjYpeKEZ6CpxP3gikttynVgdNnSpubktg"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "150000"
    }
  ]
}
https://api.onesource.io/api/chain/tx/:hash

Full Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block

Base crawled 0x833589fC…
0.008per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "8000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/erc20-transfers

ERC20 Transfer logs via eth_getLogs - raw Transfer events for a token or wallet

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/contract/:address

Best-effort contract introspection via batched RPC - bytecode presence, token metadata, and ERC20-like/ERC721/ERC1155 classification

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/block/:number

Fetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/total-supply

Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/nonce/:address

Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/receipt/:hash

Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/erc721-tokens

List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)

Base crawled 0x833589fC…
0.008per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "8000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/nft-metadata

NFT metadata for ERC721 or ERC1155 tokens via eth_call, with IPFS, Arweave, data URI, and public HTTP(S) resolution

Base crawled 0x833589fC…
0.008per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "8000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.exa.ai/search

Exa /search endpoint

Base crawled 0x833589fC…
0.007per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "7000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "acceptId": "legacy",
        "breakdown": {
          "search": 0.006999999999999999
        },
        "name": "USD Coin",
        "totalUsd": 0.006999999999999999,
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x6d6E695b09861467c7d462f5AAF31cF3540B9192",
      "scheme": "exact",
      "maxAmountRequired": "7000"
    },
    {
      "amount": "7000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "acceptId": "solana-usdc-mainnet",
        "breakdown": {
          "search": 0.006999999999999999
        },
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin",
        "totalUsd": 0.006999999999999999,
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "12Ec2cJmfR1C9uwejzxcuMhUgEC7wDrLgm1wBvvR5w9E",
      "scheme": "exact",
      "maxAmountRequired": "7000"
    },
    {
      "amount": "7000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "acceptId": "base-usdc-gateway",
        "assets": [
          {
            "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "decimals": 6,
            "symbol": "USDC"
          }
        ],
        "breakdown": {
          "search": 0.006999999999999999
        },
        "minValiditySeconds": 604800,
        "name": "GatewayWalletBatched",
        "totalUsd": 0.006999999999999999,
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "7000"
    },
    {
      "amount": "7000",
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "acceptId": "worldchain-usdc-gateway",
        "assets": [
          {
            "address": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
            "decimals": 6,
            "symbol": "USDC"
          }
        ],
        "breakdown": {
          "search": 0.006999999999999999
        },
        "minValiditySeconds": 604800,
        "name": "GatewayWalletBatched",
        "totalUsd": 0.006999999999999999,
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:480",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "7000"
    },
    {
      "amount": "7000",
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "acceptId": "arc-usdc-gateway",
        "assets": [
          {
            "address": "0x3600000000000000000000000000000000000000",
            "decimals": 6,
            "symbol": "USDC"
          }
        ],
        "breakdown": {
          "search": 0.006999999999999999
        },
        "minValiditySeconds": 604800,
        "name": "GatewayWalletBatched",
        "totalUsd": 0.006999999999999999,
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:5042",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "7000"
    },
    {
      "amount": "7000",
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "acceptId": "arc-usdc-circle",
        "assetTransferMethod": "eip3009",
        "breakdown": {
          "search": 0.006999999999999999
        },
        "name": "USDC",
        "totalUsd": 0.006999999999999999,
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:5042",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "7000"
    },
    {
      "amount": "7000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "acceptId": "base-usdc-circle",
        "assetTransferMethod": "eip3009",
        "breakdown": {
          "search": 0.006999999999999999
        },
        "name": "USD Coin",
        "totalUsd": 0.006999999999999999,
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "7000"
    }
  ]
}
https://api.onesource.io/api/chain/events

Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/network-info

EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://stableenrich.dev/api/exa/search

Exa Search - Neural search across the web

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426445583",
        "recentBlockhash": "3NnfMgmio36pfPqkkhwoTvqZBxFUwNeXwSEoW4eAuURv"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.onesource.io/api/chain/chain-id

Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/code/:address

Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/allowance

ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/call

Simulate a read-only Ethereum contract call via eth_call - no transaction sent

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/estimate-gas

Estimate the gas a transaction will consume via eth_estimateGas before signing it

Base crawled 0x833589fC…
0.004per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "4000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "4000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "4000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "4000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/nft-owner

Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://api.onesource.io/api/chain/erc1155-balance

ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://x402.ottoai.services/crypto-news

Importance-ranked crypto headlines with per-article source links and publish times, plus a sentiment-scored market brief. Regenerated hourly; meta carries the snapshot's age and a fresh/stale verdict.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://stableupload.dev/api/upload

Buy an upload slot. Agent uploads file via returned URL.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x06dFF3c8380b5D1799874adA903fc3422882FD6f",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426467034",
        "recentBlockhash": "6qGBYvfCU5USVGf5gf59WrFhht8bqG8jky48rcamwMrp"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "95xcrFtRVn2fkoAKiCUKxPpTc1GN8MTyonVwLFfJfzux",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://agi.apify.com/protocols/x402/prepaid-tokens

Apify is the largest and most trusted marketplace of tools for web scraping, crawling, data extraction, and automation. Use these tools, called Actors, to extract structured data from social media, e-commerce sites, search engines, maps, travel sites, or any other website. Turn the open web into a real-time data source for your research, lead generation, and monitoring.

Base crawled 0x833589fC…
1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x4aAbE17C239eF71c3A26bA7C2b3e0AeBbfC1DF26",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    },
    {
      "amount": "1000000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ECUPkq6DP8VUSEueL4qNznyNDJLwu6PQhnMQ5cuZsTLH",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    },
    {
      "amount": "1000000",
      "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ECUPkq6DP8VUSEueL4qNznyNDJLwu6PQhnMQ5cuZsTLH",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    }
  ]
}
https://laso.finance/get-card

Get a prepaid card for use inside the United States

Base crawled 0x833589fC…
5per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3291e96b3bff7ed56e3ca8364273c5b4654b2b37",
      "scheme": "exact",
      "maxAmountRequired": "5000000"
    },
    {
      "amount": "5000000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3MZVk97x9SeRxbYpc3jhzRfU2fyA3emYutnqfn9kNfYX",
      "scheme": "exact",
      "maxAmountRequired": "5000000"
    }
  ]
}
https://crypto.apitoll.cloud/v1/crypto/price

Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): current spot price, token symbol, decimals, and a confidence score, for up to 50 coins in one call. Pass ?at=<unix> for the historical price at a point in time. Sourced from DefiLlama across every major chain.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3dA40A9aD36640a2C0F533BAC368490095574664",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5Wxg3V6gcmFmmP6SXmGZQAUZPFYsSwoeN2Qewt5BotWz",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://cheaptokens.ai/api/buy

OpenAI-compatible LLM inference and chat completions via discounted Venice API credits. Pay USDC to receive a live Venice.ai API key for /api/v1 models, chat, images, audio, video, and embeddings. Same-Day credits are 30–90% below Venice direct and expire at 23:59 UTC; Prepaid API Keys support recurring agent jobs.

Base crawled 0x833589fC…
1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x213c8d7434E2ae7AA1C392767c5120778D413215",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    }
  ]
}
https://x402uselessfacts.vercel.app/api/useless-fact

Pay a tiny amount of USDC and receive one delightfully useless fact.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD7d49D6a12Ee3852f29A52A40908069bF4e48914",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://randomfactsx402.vercel.app/api/random-fact

Returns a single random fact as JSON in exchange for a micropayment.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xB5F08f2db7baA682f308BAa02cf0Edb35AcA336a",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://coinflip402.vercel.app/api/coinflip

Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xb8c578e039Aa2c44dd3dEc48E6875ba5763CD67f",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://glim.sh/api/v1/twitter/search

Search tweets with advanced operators (recommended). Body param is `query` (not q), e.g. {"query":"from:elonmusk AI min_faves:100"}

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://ladyfortunalx402.vercel.app/api/fortune

Get a random fortune via x402 payment on Base mainnet.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x88a4CDea106f18e919613a4EAeD8efdb2183E9ea",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://cars2026.vercel.app/api/cars

Educational briefing on the latest cars in 2026 (powertrains, range, pricing, and what's new).

Base crawled 0x833589fC…
0.0011per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1100",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x1e21dBA6EEb902343E4128a1957eAfB8CDf36f39",
      "scheme": "exact",
      "maxAmountRequired": "1100"
    }
  ]
}
https://memegeneratorx402.vercel.app/api/generate-meme

Generate a captioned meme image. Pay per request in USDC on Base mainnet.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7971a809c18c918CaD50cF004C190cBb6E1bf668",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402wordoftheday.vercel.app/api/word-of-the-day

Get today's curated Word of the Day (definition + part of speech).

Base crawled 0x833589fC…
0.0015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x2af91Df69bD04ccF82D6477aDC046C815B7aE129",
      "scheme": "exact",
      "maxAmountRequired": "1500"
    }
  ]
}
https://x402lifeadvice.vercel.app/api/life-advice

Get one piece of thoughtful life advice, paid per request over x402.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x1350A77BEfEBBCc05f8e3a13CC6D4AD781c59D34",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://roastx402endpoint.vercel.app/api/roast

Pay for a lighthearted developer roast generated on-demand.

Base crawled 0x833589fC…
0.0017per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1700",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xBbBA34E9e10130CE852Aa9f1D651cd73C36206d4",
      "scheme": "exact",
      "maxAmountRequired": "1700"
    }
  ]
}
https://jokes-endpoint.vercel.app/api/jokes

Get a random interesting joke. Secured with x402 payment protocol on Base mainnet.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD70d01C73b0C5F3246F2b55CCe5FF1b41842ab5E",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.onesource.io/api/chain/proxy/:address

Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://riddlex402.vercel.app/api/riddle

Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x255CdB4e42afeFc7120B0388eB78f96d996d387b",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.onesource.io/api/chain/storage

Read a raw storage slot from any Ethereum contract via eth_getStorageAt

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://dicex402.vercel.app/api/dice

Roll a dice with any number of faces. Specify faces via ?faces=N query parameter.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xBf0Df63A4A47e5A72A976ecE1D78aefecCC773a0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.bitrefill.com/x402/gift-cards/search

Search 10,000+ gift card & voucher brands across 180+ countries by name and country. Pay in USDC via x402, no account.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://horrorstoryapi.vercel.app/api/horror-story

Access the exclusive horror story collection (pay-per-read).

Base crawled 0x833589fC…
0.0013per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1300",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6a4921474848d3fa168ee7fa87222547acc4712f",
      "scheme": "exact",
      "maxAmountRequired": "1300"
    }
  ]
}
https://weight402endpoint.vercel.app/api/convert-weight

Convert a weight/mass value between units (kg, g, lb, oz, stone, tonne, and more).

Base crawled 0x833589fC…
0.0025per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA3068CfAe6217Ae906958250072bdf51B7F910c3",
      "scheme": "exact",
      "maxAmountRequired": "2500"
    }
  ]
}
https://api.kadec0.xyz/v1/serp

Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex).

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://402timezones.vercel.app/api/convert-timezone

Convert a time between any two IANA time zones (DST-aware). Pay-per-call in USDC on Base.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xbA667287B8Ef89565F8fD7AcD4d22Ce98E0f39cd",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://vibesprings.net/api/price/btc-usd

Real-time BTC/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x38C063312719220c676E988f0DEE14B4ec0e44C8",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://x402.ottoai.services/yield-markets

DeFi yield farming markets with live APYs across Aave V3 and Morpho on Base, Ethereum, and other major chains. Find the best stablecoin yield (USDC) and ETH yield for idle capital: returns supply APY, TVL, and vault/market addresses per token, filterable by protocol, chain, or token symbol. Compare DeFi yield rates across lending markets and vaults before depositing.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.onesource.io/api/chain/pending

Pending block - transactions not yet mined, via eth_getBlockByNumber("pending")

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "credentialTypes": [
          "authorization"
        ],
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "exact"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
      "scheme": "batch-settlement"
    }
  ]
}
https://hypernatt.com/api/m2m/liq-radar

Forced-order map. If cluster_grammar is present, read it before liq_radar. class=noise (<3%) is high-leverage bait - ignore. class=true (~7%+) is the low-leverage stack. Terrain, not a signal. Whitelist BTC ETH SOL BNB XRP HYPE ZEC (omit = BTC).

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Pay $0.001 USDC to access: Forced-order map. If cluster_grammar is present, read it before liq_radar. class=noise (<3%) is high-leverage bait - ignore. class=true (~7%+) is the low-leverage stack. Terrain, not a signal. Whitelist BTC ETH SOL BNB XRP HYPE ZEC (omit = BTC).",
      "extra": {
        "decimals": 6,
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 60,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "payTo": "0x5a78ace5dd133316c8aaf7e156fbfc57e1209cf9",
      "resource": "https://hypernatt.com/api/m2m/liq-radar",
      "scheme": "exact"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Pay $0.001 USDC to access: Forced-order map. If cluster_grammar is present, read it before liq_radar. class=noise (<3%) is high-leverage bait - ignore. class=true (~7%+) is the low-leverage stack. Terrain, not a signal. Whitelist BTC ETH SOL BNB XRP HYPE ZEC (omit = BTC).",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 60,
      "mimeType": "application/json",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "2hAXt3sb2GZrtXx4ae4Ywc7enqrE191nktyL5k2nWSfg",
      "resource": "https://hypernatt.com/api/m2m/liq-radar",
      "scheme": "exact"
    }
  ]
}
https://x402.ottoai.services/hyperliquid-market

Hyperliquid perpetuals market data: live mark/oracle price, funding rate, open interest, max leverage, and size specs for any tradable asset.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/offers

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "GET",
              "queryParams": {
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "output": {
              "example": {
                "offers": []
              },
              "schema": {
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "additionalProperties": true,
                "properties": {
                  "offers": {
                    "items": {
                      "additionalProperties": true,
                      "type": "object"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "offers"
                ],
                "type": "object"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/offers?method=GET — x402-gateway /recipient-api/offers. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "offers": {
                "items": {
                  "additionalProperties": true,
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "offers"
            ],
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/offers?method=GET",
      "scheme": "exact"
    }
  ]
}
https://stablestudio.dev/api/upload

Get a client token for direct upload to Vercel Blob

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x07F067959297767c887dbfA3C72379c66E82a045",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426302451",
        "recentBlockhash": "Goozyzn1YtW55AMYbCQGpFP6rEh3gZPT3bLe6YHR4nAR"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "HqpEDUY3kV423fSAv7iaY3cQiz8qN8qEuGqLsG4s6h2c",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://stableupload.dev/api/site

Buy a site upload slot. Upload a zip file, then activate to extract and serve as a static site.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x06dFF3c8380b5D1799874adA903fc3422882FD6f",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "425719435",
        "recentBlockhash": "3SmwX3mMNmE6zy7kvWbrVaSUEeHJQhGWCpqA7eKgS5hK"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "95xcrFtRVn2fkoAKiCUKxPpTc1GN8MTyonVwLFfJfzux",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://sat.ipintel.ai/satellite-observe

Agent-ready satellite observations for any coordinates. Returns PNG image URLs and scene metadata for true color, vegetation, water, thermal, or radar analysis.

Base crawled 0x833589fC…
0.025per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "25000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0550779CFBc832657A8BB46BAC9f359A5ad038B8",
      "scheme": "exact",
      "maxAmountRequired": "25000"
    }
  ]
}
https://websearch.use.x402atlas.com/search

Real-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional LLM-generated answer. Find up-to-date information online — latest news, current events, finance. Date, domain and exact-phrase filters.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xF752eEB75d3Bea24AA867ad93bfd8EF5a2F431B9",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xF752eEB75d3Bea24AA867ad93bfd8EF5a2F431B9",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xF752eEB75d3Bea24AA867ad93bfd8EF5a2F431B9",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://edgar.apitoll.cloud/v1/edgar/filings

Latest SEC EDGAR filings for any US-listed company by stock ticker or CIK: 10-K annual reports, 10-Q quarterly reports, and 8-K material events. Resolves ticker to CIK via SEC's official index and returns the parsed filing (company, form type, dated items). Sourced live from data.sec.gov.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x58BdAD5e654691aC5eD4631758f3d8DA00666B6c",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "7kPWiEbDXu33FomKG6mGa7R8HGSfUGFsAoKFZeBERJaH",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://kronossignals.com/api/v1/fear-greed

Crypto Fear & Greed Index: alternative.me score (0-100) plus Kronos-owned context (BTC funding sentiment, OI 1h trend, 24h price momentum). Not a pure proxy — adds proprietary derivative signals. Pay-per-call via x402.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://x402.miroshark.xyz/run

MiroShark: run a 25-agent social-media simulation across Twitter, Reddit, and Polymarket over 10 rounds from a single prompt, URL, or article, then read a synthesized markdown report with belief drift, top posts, and prediction-market trajectories.

Base crawled 0x833589fC…
1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6cab485fc28ec70d3845113b704d4824e4d2b24f",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    },
    {
      "amount": "1000000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9vWbPNMvt8ui1cNN8jWWPUWT5LPmeXzq7nr3vry1vMPH",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    },
    {
      "amount": "1000000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x0000CE08fa224696A819877070BF378e8B131ACF",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    }
  ]
}
https://stableenrich.dev/api/exa/contents

Exa Contents - Retrieve content from URLs

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426349249",
        "recentBlockhash": "J3iLsTaBnjQg9m4rgjDXMaxNhAtui3pzP7F5ZnHNHtuM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/exchange-rate

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://vibesprings.net/api/price/base-gas

Base network real-time gas price oracle. Returns block base fee, current gas price in GWEI, and network block details.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x38C063312719220c676E988f0DEE14B4ec0e44C8",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://flights.use.x402atlas.com/search/:departure/:arrival

Flight search by departure and arrival airports in the URL — compare live itineraries, fares, schedules, stops and emissions across airlines, similar to Google Flights, as clean JSON.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://stableenrich.dev/api/pdl/people-enrich

PDL Person Enrich — career history, emails, phone. Requires one of: `email`, `profile` (LinkedIn URL), or `first_name` + `last_name` + (`company_name` OR `company_domain`). `{ first_name, last_name }` alone returns 400. Prefer `email` when known, then `profile`. No match: HTTP 200, status 404, data null — not billed. Match: $0.28.

Base crawled 0x833589fC…
0.28per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "280000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "280000"
    },
    {
      "amount": "280000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426459115",
        "recentBlockhash": "8faPdjro443pjYpeKEZ6CpxP3gikttynVgdNnSpubktg"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "280000"
    }
  ]
}
https://laso.finance/auth

Get a Firebase ID token for authenticating with the callable APIs

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3291e96b3bff7ed56e3ca8364273c5b4654b2b37",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3MZVk97x9SeRxbYpc3jhzRfU2fyA3emYutnqfn9kNfYX",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.twit.sh/tweets/search

Search Twitter/X tweets with advanced filters. Returns up to 20 tweets per page, most recent first, with pagination. At least one filter required. Params: words, phrase, anyWords, noneWords, hashtags, from, to, mentioning, minReplies, minLikes, minReposts, since (YYYY-MM-DD), until, next_token. e.g. GET /tweets/search?words=bitcoin&from=elonmusk&minLikes=100. Returns X v2 API-compatible JSON.

Base crawled 0x833589fC…
0.006per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "6000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9dBA414637c611a16BEa6f0796BFcbcBdc410df8",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/supply

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://kronossignals.com/api/v1/price/btc

Multi-source volume-weighted median (VWM) spot price for 16 crypto assets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT). Aggregates Binance, Coinbase, Kraken, and OKX in parallel (2 s timeout per source). Includes 1% outlier rejection, cross-exchange spread %, confidence grading (high/medium/low), and per-source USD volume weights. Kaiko-style reference pricing — $0.02/call.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.hyperextend.xyz/v1/candles/BTC/1m/latest

The most-recent N OHLCV candles (≤5000). Same per-row pricing as the windowed read ($0.00001 base for main/spot, $0.000025 premium for HIP-3/HIP-4); candles lag ~2 days.

Base crawled 0x833589fC…
0.00191per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1910",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "exact",
      "maxAmountRequired": "1910"
    },
    {
      "amount": "0.00191",
      "asset": "USDC:0x6d1e7cde53ba9467b783cb7c530ce054",
      "extra": {
        "destinationDex": "spot"
      },
      "maxTimeoutSeconds": 60,
      "network": "hyperliquid:mainnet",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "exact",
      "maxAmountRequired": "0.00191"
    },
    {
      "amount": "1910",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "batch-settlement",
      "maxAmountRequired": "1910"
    }
  ]
}
https://api-dev-v2.ixs.finance/x402/vaults

IXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE341Add833F9d62082e97eA260BAA6546Cd09F73",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://kronossignals.com/api/v1/liquidations/eth

Forward liquidation cluster map + recent prints for all 17 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE-USD. Pay-per-call via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://kronossignals.com/api/v1/signals/btc

Real-time crypto derivatives signals for BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE-USD: perpetual futures funding rate (raw + annualized), next_funding_time, funding_interval_hours, open interest and 1h change, basis (perp vs index), funding-rate trend. Live data from Bybit/OKX via Kronos market_signals. Pay-per-call via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://x402.botsmith.dev/x/search

X Tweet Search ($0.02/call): Search X (Twitter) posts with full advanced-search syntax (from:, since:, until:, exact phrases, boolean operators). Returns up to 20 posts per call as clean JSON with metrics and entities, plus a cursor for the next page. No X account or API key needed.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xcb9b3F94387389e38EF2A7b3C0B851FB8325d7e9",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://x402.ottoai.services/twitter-summary

Quick pulse check from crypto Twitter. Breaking news, trending narratives, and sentiment shifts at a glance.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://chat.gedx402.com/v1/chat/completions

Multi-model chat completions. POST messages[] and set model to any LLM id from GET /v1/models; dynamic USDC pricing scales with model and token usage. Hero: GET /heroes/chat-completions.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xb3C2776cE3F99cb3366520c27b4aC5D436942Ab6",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://google-trends.use.x402atlas.com/trend

Google Trends interest over time for a keyword — worldwide search popularity as a monthly series for keyword research, SEO & demand trend analysis.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.oblique.markets/api/v1/paid/time

Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Returns Current server time as ISO 8601 and Unix epoch milliseconds, returned only after a real settlement. $0.01.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Returns Current server time as ISO 8601 and Unix epoch milliseconds, returned only after a real settlement. $0.01.",
      "extra": {
        "bazaar": {
          "category": "utility",
          "description": "Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Returns Current server time as ISO 8601 and Unix epoch milliseconds, returned only after a real settlement. $0.01.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "time",
            "clock",
            "timestamp",
            "x402-test",
            "utility"
          ]
        },
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x970007590aCC5C938cd51345B17AF51B1B40D3Ab",
      "resource": "https://api.oblique.markets/api/v1/paid/time",
      "scheme": "exact"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Returns Current server time as ISO 8601 and Unix epoch milliseconds, returned only after a real settlement. $0.01.",
      "extra": {
        "bazaar": {
          "category": "utility",
          "description": "Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Returns Current server time as ISO 8601 and Unix epoch milliseconds, returned only after a real settlement. $0.01.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "time",
            "clock",
            "timestamp",
            "x402-test",
            "utility"
          ]
        },
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin"
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GYyTRmt317JafPHXPnM54Fsvsma5GnS9wm6qGMqaykdS",
      "resource": "https://api.oblique.markets/api/v1/paid/time",
      "scheme": "exact"
    }
  ]
}
https://api.hyperextend.xyz/v1/liquidations/BTC

Forced-liquidation tape over a time window, reconstructed from the node-fills archive (Hyperliquid has no public liquidations feed). Each row is a trade row (coin, side, px, sz, time, hash, tid, users:[buyer, seller]) plus the liquidation markers (method market|backstop, markPx, liquidatedUser, dir). Priced per asset-hour ($0.005 base, $0.01 HIP-3/HIP-4) plus $0.05 per uncached archive hour pulled; up to 24 asset-hours/request, available ~2h after the hour closes.

Base crawled 0x833589fC…
0.011per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "11000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "exact",
      "maxAmountRequired": "11000"
    },
    {
      "amount": "0.011",
      "asset": "USDC:0x6d1e7cde53ba9467b783cb7c530ce054",
      "extra": {
        "destinationDex": "spot"
      },
      "maxTimeoutSeconds": 60,
      "network": "hyperliquid:mainnet",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "exact",
      "maxAmountRequired": "0.011"
    }
  ]
}
https://api.402rates.com/v1/ping

Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only. Terms: https://402rates.com/data-terms/

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xfA2958CB79b0491CC627c1557F441eF849Ca8eb1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:50",
      "payTo": "0xedb1a894761F0a142d80D09F82Ff7CF99158Bb19",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://kronossignals.com/api/v1/alerts/btc

Real-time Bitcoin (BTC) market-regime alerts: volatility squeeze, breakout, funding-rate extreme, open-interest surge — derived from live derivatives data. Event feed for crypto trading agents. Pay-per-call via x402 on Base USDC.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.aidress.ai/pay/agent_ottoai_crypto_news

Importance-ranked crypto headlines with per-article source links and publish times, plus a sentiment-scored market brief. Regenerated hourly; meta carries the snapshot's age and a fresh/stale verdict.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/workflow/reward-status

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "GET",
              "queryParams": {
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": {
                "type": "string"
              },
              "description": "Query parameters for GET /recipient-api/workflow/reward-status. See https://loyalspark.online/openapi.json for the full schema.",
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "recipient-api/workflow/reward-status"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/workflow/reward-status?method=GET — x402-gateway /recipient-api/workflow/reward-status. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": {
              "type": "string"
            },
            "description": "Query parameters for GET /recipient-api/workflow/reward-status. See https://loyalspark.online/openapi.json for the full schema.",
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/workflow/reward-status?method=GET",
      "scheme": "exact"
    }
  ]
}
https://twitter.use.x402atlas.com/search

Search Twitter/X with structured filters or raw advanced-search syntax. Returns up to 20 normalized tweets with full text, author details, engagement metrics and a pagination cursor.

Base crawled 0x833589fC…
0.006per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "6000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "6000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "6000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    }
  ]
}
https://api.exa.ai/contents

Exa /contents endpoint

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "acceptId": "legacy",
        "breakdown": {
          "text": 0.001
        },
        "name": "USD Coin",
        "totalUsd": 0.001,
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x6d6E695b09861467c7d462f5AAF31cF3540B9192",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "acceptId": "solana-usdc-mainnet",
        "breakdown": {
          "text": 0.001
        },
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "name": "USD Coin",
        "totalUsd": 0.001,
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "12Ec2cJmfR1C9uwejzxcuMhUgEC7wDrLgm1wBvvR5w9E",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "acceptId": "base-usdc-gateway",
        "assets": [
          {
            "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "decimals": 6,
            "symbol": "USDC"
          }
        ],
        "breakdown": {
          "text": 0.001
        },
        "minValiditySeconds": 604800,
        "name": "GatewayWalletBatched",
        "totalUsd": 0.001,
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "acceptId": "worldchain-usdc-gateway",
        "assets": [
          {
            "address": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
            "decimals": 6,
            "symbol": "USDC"
          }
        ],
        "breakdown": {
          "text": 0.001
        },
        "minValiditySeconds": 604800,
        "name": "GatewayWalletBatched",
        "totalUsd": 0.001,
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:480",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "acceptId": "arc-usdc-gateway",
        "assets": [
          {
            "address": "0x3600000000000000000000000000000000000000",
            "decimals": 6,
            "symbol": "USDC"
          }
        ],
        "breakdown": {
          "text": 0.001
        },
        "minValiditySeconds": 604800,
        "name": "GatewayWalletBatched",
        "totalUsd": 0.001,
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:5042",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "acceptId": "arc-usdc-circle",
        "assetTransferMethod": "eip3009",
        "breakdown": {
          "text": 0.001
        },
        "name": "USDC",
        "totalUsd": 0.001,
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:5042",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "acceptId": "base-usdc-circle",
        "assetTransferMethod": "eip3009",
        "breakdown": {
          "text": 0.001
        },
        "name": "USD Coin",
        "totalUsd": 0.001,
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://agentpay.tools/tools/pre_trade_check/call

Pre-trade risk check for AI agents trading crypto: live orderbook slippage at YOUR size, side-aware funding carry, open-interest crowding, and optional contract security — composed into a single ok/caution/avoid verdict with per-factor reasons and raw data embedded. Answers 'is this trade sane?' before trading, not after. Replaces four API integrations plus the judgment layer.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "One-call pre-trade sanity check: 'I want to long $X of SYMBOL — is now sane?' Combines live orderbook slippage at YOUR size, cross-exchange funding (carry cost), open-interest crowding, and contract security (GoPlus) into a single ok/caution/avoid verdict with a per-factor breakdown. Major ERC-20 addresses (LINK, UNI, ARB, OP, AAVE, PEPE, SHIB) resolve automatically; native assets (BTC, ETH, SOL, ...) report security n/a; an unrecognized token without token_address reads 'unknown' and caps the verdict at caution — an unscreened contract can never read 'ok'. Replaces four API integrations and the judgment layer on top of them. Raw component data embedded so you can apply your own thresholds.",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "errors": [
          {
            "body": {
              "error": "<summary>",
              "reason": "<machine-readable reason>"
            },
            "retry": "Re-request the challenge and pay again",
            "status": 402,
            "when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)"
          },
          {
            "body": {
              "detail": [
                {
                  "loc": [
                    "body"
                  ],
                  "msg": "<what is wrong>",
                  "type": "<error type>"
                }
              ]
            },
            "retry": "Fix the body and retry with a fresh payment",
            "status": 422,
            "when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422"
          },
          {
            "body": {
              "detail": "Tool '<name>' not found"
            },
            "status": 404,
            "when": "Unknown tool name"
          },
          {
            "body": {
              "error": "Rate limit exceeded"
            },
            "retry": "Back off and retry after a minute",
            "status": 429,
            "when": "Rate limited (per-IP and per-wallet limits)"
          },
          {
            "body": {
              "error": "Tool execution failed",
              "payment_status": "refund_pending",
              "tool": "<name>"
            },
            "status": 500,
            "when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call"
          },
          {
            "body": {
              "detail": "<what is unavailable>"
            },
            "retry": "Retry shortly",
            "status": 503,
            "when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)"
          }
        ],
        "input": {
          "properties": {
            "side": {
              "default": "long",
              "description": "Trade direction (funding carry is side-aware)",
              "enum": [
                "long",
                "short"
              ],
              "type": "string"
            },
            "size_usd": {
              "default": 10000,
              "description": "Intended position size in USD (drives the slippage check)",
              "type": "number"
            },
            "symbol": {
              "description": "Asset to check, e.g. 'ETH', 'BTC', 'SOL'",
              "type": "string"
            },
            "token_address": {
              "description": "Optional ERC-20 contract address for the GoPlus security scan. Auto-resolved for major tokens; required for a full verdict on tokens the resolver doesn't know (otherwise security reads 'unknown' and caps the verdict at caution)",
              "type": "string"
            }
          },
          "required": [
            "symbol"
          ],
          "type": "object"
        },
        "output": {
          "factors": {
            "carry": {
              "annualized_pct": 67.9,
              "level": "caution",
              "median_funding_pct": 0.062,
              "reason": "longs paying elevated funding"
            },
            "crowding": {
              "level": "ok",
              "long_short_ratio": 1.4,
              "oi_change_24h_pct": 3.2,
              "reason": "positioning unremarkable"
            },
            "liquidity": {
              "bucket_usd": 50000,
              "level": "ok",
              "reason": "fills within 0.011% of best ask",
              "slippage_pct": 0.011
            },
            "security": {
              "level": "skipped",
              "reason": "no token_address provided"
            }
          },
          "side": "long",
          "size_usd": 50000,
          "symbol": "ETH",
          "verdict": "caution"
        }
      },
      "payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
      "resource": "https://agentpay.tools/tools/pre_trade_check/call",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://hyperliquid-predict.use.x402atlas.com/outcomes

The catalog of Hyperliquid prediction-market outcomes and their metadata.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA55B06462A2e48661bAdF22f5841F95aE654b716",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xA55B06462A2e48661bAdF22f5841F95aE654b716",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xA55B06462A2e48661bAdF22f5841F95aE654b716",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://stabletravel.dev/api/seats-aero/search

Search cached Seats.aero award availability by origin, destination, dates, cabin, carriers, and pagination.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xDd257723b86B4947483905cdAcBbBC70fACF2ec0",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426140503",
        "recentBlockhash": "73ZEDmSws3Y3QjtLRpACanVkgaeF1txong2drPbhdgRq"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6u5LMGQC2qk9peNibahmRWxGVXrBypk8nhTCcqtiuqMY",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://quartermaster.surewhynot.app/v1/gas

Current Base gas prices and a simple-transfer cost estimate for transaction planning.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5253666c40432f009ebd99908b9cd2a7fd1019cb",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FgcKNzsBXSEHGNZNWetPsjXiBZk1WFoU6sF2zVsnzXfa",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://www.getbags.app/api/v1

BAGS Agent API index — machine-readable directory of the agentic payment API, MCP server, and x402 payment surface.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x374cFb844a5C702d637d72a5387fD9EF6B82108C",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x374cFb844a5C702d637d72a5387fD9EF6B82108C",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://tick.hugen.tokyo/tick/latest

Get real-time Best Bid/Ask for any FX pair, aggregated from multiple institutional liquidity providers. 62-88% tighter spreads than any single source. Includes quality metadata (fresh_sources, quality_state, spread_vs_single_source). Supports 14 FX pairs including EURUSD, USDJPY, GBPUSD, AUDUSD, AUDNZD, and XAUUSD. AI agent API for forex trading signals, portfolio valuation, price comparison, and arbitrage detection. Accepts USDC payments on Base and Solana

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4du4AfkxFvtqEWaoRWrifoSXCknuMpAGh3BXrFPFvXFh",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://google-trends.use.x402atlas.com/related-queries

Google Trends related search queries for a keyword by country — top & rising terms for SEO keyword research, query expansion and content ideas.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://youtube.use.x402atlas.com/transcript

Full transcript of any YouTube video by video id or URL: captions/subtitles as clean plain text plus timestamped segments, the video's chapter markers, and every caption track it offers so an agent can pick a language and re-fetch. YouTube transcript, video to text, captions extraction, subtitle download, closed captions, speech to text, multilingual, asr and authored tracks. No API key.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/vouchers

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "GET",
              "queryParams": {
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "limit": {
                  "pattern": "^[0-9]+$",
                  "type": "string"
                },
                "status": {
                  "type": "string"
                },
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "output": {
              "example": {
                "vouchers": []
              },
              "schema": {
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "additionalProperties": true,
                "properties": {
                  "vouchers": {
                    "items": {
                      "additionalProperties": true,
                      "type": "object"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "vouchers"
                ],
                "type": "object"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/vouchers?method=GET — x402-gateway /recipient-api/vouchers. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "limit": {
                "pattern": "^[0-9]+$",
                "type": "string"
              },
              "status": {
                "type": "string"
              },
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "vouchers": {
                "items": {
                  "additionalProperties": true,
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "vouchers"
            ],
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/vouchers?method=GET",
      "scheme": "exact"
    }
  ]
}
https://lionx402.com/api/x402/wallet-screen-json

Cheapest OFAC SDN wallet screen for AI agents ($0.001). AML/KYT pre-pay gate: PASS/WARN/BLOCK before you settle any x402 counterparty. Keyless Base USDC, Ed25519-attested. Beats $0.005–$0.05 wallet-screen clones. Upsell multi-list sanctions $0.02 + compliance receipt $0.05.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://gas.apitoll.cloud/v1/base/gas

Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every Base tx to set a fair fee or wait out congestion.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xcc69d619E6053F88A4845066518f465bD06Fc96c",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/rewards

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "GET",
              "queryParams": {
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "required": [
                "token_address"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "rewards": []
              },
              "schema": {
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "additionalProperties": true,
                "properties": {
                  "rewards": {
                    "items": {
                      "additionalProperties": true,
                      "type": "object"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "rewards"
                ],
                "type": "object"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/rewards?method=GET — x402-gateway /recipient-api/rewards. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "required": [
              "token_address"
            ],
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "rewards": {
                "items": {
                  "additionalProperties": true,
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "rewards"
            ],
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/rewards?method=GET",
      "scheme": "exact"
    }
  ]
}
https://x402.ottoai.services/tweet-search

Search X/Twitter for any query and get the actual matching tweets — keyword, $CASHTAG, from:handle (a user timeline), @handle (mentions), or boolean OR. Each tweet returns author, full text (long-form note tweets included), timestamp, likes and retweets (reply/quote counts when available). Most-recent-first for real-time monitoring and alerting. Live X search backend, pay-per-call USDC, structured JSON.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/balance

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "GET",
              "queryParams": {
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "required": [
                "token_address"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "recipient-api/balance"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/balance?method=GET — x402-gateway /recipient-api/balance. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "required": [
              "token_address"
            ],
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/balance?method=GET",
      "scheme": "exact"
    }
  ]
}
https://srv1334799.hstgr.cloud/v1/x402/demand/snapshot

Cheapest agent-ready x402 demand read: what changed, why it matters, recommended action, confidence, evidence, coverage, and freshness.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xc4f9f3b2Cc0EAc2542dF9f1cB8F5C118E13a0045",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://preppers-paradise.com/library/automatetheboringstuffwithpythonnew/02-what-is-programming.md

Paid book chapter (x402): Automate the Boring Stuff with Python: What Is Programming. Unit of a larger practical-skills library; free catalog at /library/discovery.json. Book slug: automatetheboringstuffwithpythonnew. Response format: Markdown (.md) for agent parsing. USDC on Base via Coinbase CDP facilitator. Free teasers and discovery.json require no payment.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "book_slug": "automatetheboringstuffwithpythonnew",
        "caip2": "eip155:8453",
        "content_type": "chapter",
        "decimals": 6,
        "name": "USD Coin",
        "price_usd": "0.01",
        "symbol": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x3BF4F4914F78C3C2B2F2801f8EA717135B7D3BDF",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://jmt-x402-proxy.jmthomasofficial.workers.dev/v2/api/whois

Raw RDAP registration record for a domain, returned as structured JSON.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x624FaF18C78456C8Da5bf156Cd77c1A2033F21c5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/agent-record/rubric-assert

Unforgeable operating history for any AI agent attesting through Rubric Protocol: record count, first-seen date, continu

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://x402.ottoai.services/funding-rates

Cross-venue funding-rate arbitrage + crowded-positioning radar: live perp funding rates, open interest, global & top-trader long/short ratios, whale positions, and liquidations across Binance, OKX, Bybit, Hyperliquid, and more. Omit symbol for the whole-market overview; pass one (e.g. BTC) for the per-exchange breakdown. (Hyperliquid-only perp data: use hyperliquid-market.)

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://minifetch.com/api/v1/x402/preflight/url-check

Cheap robots.txt preflight before you pay for other Minifetch endpoints: returns whether the Minifetch user agent may fetch a target URL (allow/deny) plus its crawl-delay. Blocked or setting a crawl delay? https://minifetch.com/tutorials/unblock-minifetch . Checks the URL as given — does not follow redirects. Supports GET & POST

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xffA9155A0e4B3d8d42351Da226cC1feEe449686f",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "46vMcwuC4sK11sB3gkLhyA7J7GEwfkhn5rFyDtihBwqe",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://xmedia.use.x402atlas.com/tweet

Twitter (X) video & image downloader — pass a public tweet / X post URL, get direct CDN media links: .mp4 video URLs with thumbnails plus every image in the post, ready to stream, embed, re-host, or download. No scraping or browser automation.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xb708AF3BcE13517357E498f8fFd277dE93db9ef5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xb708AF3BcE13517357E498f8fFd277dE93db9ef5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xb708AF3BcE13517357E498f8fFd277dE93db9ef5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://laso.finance/order-gift-card

Order a gift card from the catalog. Browse available cards at GET /search-gift-cards.

Base crawled 0x833589fC…
5.24per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5240000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3291e96b3bff7ed56e3ca8364273c5b4654b2b37",
      "scheme": "exact",
      "maxAmountRequired": "5240000"
    },
    {
      "amount": "5240000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3MZVk97x9SeRxbYpc3jhzRfU2fyA3emYutnqfn9kNfYX",
      "scheme": "exact",
      "maxAmountRequired": "5240000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/throughput

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://intel.chainquery.com/v1/fee-pressure

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Live mempool fee-pressure signal (state low/moderate/high/severe + score in sat/vB).

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7Cf45cD775Bdf31a5a96fa0A5805DF0b610D87ff",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/balances

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "GET",
              "queryParams": {
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {},
              "type": "object"
            },
            "output": {
              "example": {
                "balances": []
              },
              "schema": {
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "additionalProperties": true,
                "properties": {
                  "balances": {
                    "items": {
                      "additionalProperties": true,
                      "type": "object"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "balances"
                ],
                "type": "object"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/balances?method=GET — x402-gateway /recipient-api/balances. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {},
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "balances": {
                "items": {
                  "additionalProperties": true,
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "balances"
            ],
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/balances?method=GET",
      "scheme": "exact"
    }
  ]
}
https://x402.ottoai.services/token-details

Token price, market cap, volume, supply, and basic metrics. Works for any listed token.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://stableenrich.dev/api/clado/contacts-enrich

Clado Contacts Enrichment - Enrich contact info from LinkedIn URL, email, or phone

Base crawled 0x833589fC…
0.2per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "200000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "200000"
    },
    {
      "amount": "200000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426226132",
        "recentBlockhash": "CE8KZcGEDpRSsLCEzhTkDuKZnv5SxYAU9xqxqSVU1YX8"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "200000"
    }
  ]
}
https://coingecko.use.x402atlas.com/price

Crypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana).

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.justaname.id/ens/v2/resolve

Resolves an ENS name into its addresses, text records, and content hash, with batch support up to 50 names and per-name chain scoping via interop addresses.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xc529edd6d47c60923902514c7c0b3993ae42c2ec",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://x402.aispace.bot/api/v1/image/generate

Text-to-image generation on Venice models (Flux, SD3.5, GPT-Image, HunyuanImage, and more), paid per request in USDC on Base via x402, no API key. Resolve a model id from GET /api/v1/models?type=image and an optional style from GET /api/v1/image/styles.

Base crawled 0x833589fC…
0.015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA7f3Ad0E69F61864092FAbBa6Cee00AF6e584689",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5hqrYCkTNe5z9Uc8o29KDNd2Gn9YreE6ZthZ7QY5hrKY",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    }
  ]
}
https://tick.hugen.tokyo/tick/all

Get real-time Best Bid/Ask for ALL available FX pairs in a single call. Multi-source aggregated from multiple institutional LPs with 62-88% spread improvement. Returns 14 FX pairs including majors, crosses, and XAUUSD gold. Each pair includes quality metadata and spread improvement vs single source. AI agent API for portfolio dashboards, multi-pair monitoring, and FX market overview. Accepts USDC payments on Base and Solana

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4du4AfkxFvtqEWaoRWrifoSXCknuMpAGh3BXrFPFvXFh",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://kronossignals.com/api/v1/digest/btc

Structured market digest for any of the 16 supported crypto assets. Deterministic composite from live signals: derivatives (funding, basis, OI), market regime, 30d realized volatility, fear-greed index, and ML forecast probability (BTC/ETH/SOL only). Single-call 'start here' bundle for autonomous agents. $0.02 USDC via x402. Live track record at /api/stats: ~54% directional hit, ~70% in-range over 15k+ scored forecasts — measured on served predictions, not a backtest.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.robinx.io/feed/new

Live scored launch feed (realtime) — or add ?tier=free for the 10-min-delayed free feed, or ?tier=alpha ($0.02) for caller_signal enrichment

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "method": "GET",
          "properties": {
            "limit": {
              "type": "integer"
            },
            "min_score": {
              "type": "integer"
            },
            "since": {
              "type": "string"
            }
          },
          "queryParams": {
            "limit": "25",
            "min_score": "70"
          },
          "required": [],
          "type": "http"
        },
        "output": {
          "data": {
            "items": [
              {
                "deployer_score": 82,
                "seen_at": "2026-07-20T12:00:00Z",
                "symbol": "CASHCAT",
                "tg_led": true,
                "token": "0x020bfC650A365f8BB26819deAAbF3E21291018b4"
              }
            ]
          }
        }
      },
      "payTo": "0xA13d363AeCCCF878Ec64f6eB687Eb4A771FB0599",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://cdp-agent-0-01.onrender.com/

AgentWire service card for webhook inbox relay and web fetch infrastructure.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xed7d30e8bc643503f9da261ed8e623bb6ecf6189",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://agentres.dev/api/discover/restaurants

Restaurant recommendations from the Blackbird network (~2,000 curated restaurants, mostly NYC and San Francisco). Full-text search plus city/neighborhood filters, with complete specials on every result, refreshed daily from a cache (never a live call) — e.g. every West Village restaurant with its current Fly-reward offers in one call.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x66717045858d9f598e2ebd046bf42a0b1063c0fa",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 3600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FCFgb8Z63uwim2QpDJW4TGwLqZoENjckwGosLmg26zBS",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://blockrun.ai/api/v1/exa/search

Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.

Base crawled 0x833589fC…
0.011per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "11000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
      "scheme": "exact",
      "maxAmountRequired": "11000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/prepare-transfer

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": true,
              "properties": {
                "amount": {
                  "exclusiveMinimum": 0,
                  "type": "number"
                },
                "to": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                },
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "required": [
                "token_address",
                "to",
                "amount"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "recipient-api/prepare-transfer"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "body": {
                    "type": "object"
                  },
                  "bodyType": {
                    "enum": [
                      "json",
                      "form-data",
                      "text"
                    ],
                    "type": "string"
                  },
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "POST",
                      "PUT",
                      "PATCH"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method",
                  "bodyType",
                  "body"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "json",
          "description": "HTTP POST https://api.loyalspark.online/x402-gateway/recipient-api/prepare-transfer?method=POST — x402-gateway /recipient-api/prepare-transfer. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "amount": {
                "exclusiveMinimum": 0,
                "type": "number"
              },
              "to": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              },
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "required": [
              "token_address",
              "to",
              "amount"
            ],
            "type": "object"
          },
          "method": "POST",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/prepare-transfer?method=POST",
      "scheme": "exact"
    }
  ]
}
https://keyronne.com/api/json-repair

Repair malformed JSON text into valid parsed JSON: markdown code fences, single quotes, smart quotes, unquoted keys, trailing commas, comments, Python literals (True/None), raw newlines in strings, and truncated output (auto-closes strings, arrays and objects). Returns the parsed value plus a log of every repair applied. Built for LLM output that almost parses. POST a JSON body like: {"text":"```json\n{name: 'Ada', age: 36, tags: ['x',], active: True"}

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://glim.sh/api/v1/amazon/search

Search Amazon by keyword or browse bestsellers by category slug

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://readx.sh/api/search/tweets

Search for tweets by query (optional product filter; paginate with cursor). Example: GET /api/search/tweets?q=typescript

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x13E060ADcc6F4b731Da8382B333027B8B2bfF707",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "CHHWRYyo8exGvcLGn3AxzHEZseLZDTnq3FaYkzZVQDQr",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.aispace.bot/api/v1/chat/completions

OpenAI-compatible chat on 100+ Venice models via x402 USDC (Base). Model from GET /api/v1/models?type=text; personas via /characters. Thinking models: empty content + reasoning_content is success; use venice_parameters.disable_thinking for plain text.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA7f3Ad0E69F61864092FAbBa6Cee00AF6e584689",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5hqrYCkTNe5z9Uc8o29KDNd2Gn9YreE6ZthZ7QY5hrKY",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://headers.use.x402atlas.com/

Audit a URL's HTTP security headers over a single body-free (HEAD) request. Grades Strict-Transport-Security, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy, flags information-leak headers (Server, X-Powered-By), and returns the parsed values plus advisory warnings. Clean JSON for security and pentest automation.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7f8043c400799643bcb62B41B84b297a8Ecb7b9c",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x7f8043c400799643bcb62B41B84b297a8Ecb7b9c",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x7f8043c400799643bcb62B41B84b297a8Ecb7b9c",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://email-auth.use.x402atlas.com/check

Email authentication posture check: parses SPF, DMARC and DKIM plus MX for any domain and grades deliverability/anti-spoofing gaps (SPF +all, SPF >10 lookups, DMARC p=none, missing DKIM). Clean JSON for deliverability and security-ops automation.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3731f5C2c1835E3aCe2AC157c4e31b1cEA0CB0e0",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x3731f5C2c1835E3aCe2AC157c4e31b1cEA0CB0e0",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x3731f5C2c1835E3aCe2AC157c4e31b1cEA0CB0e0",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://gridpulse.theaslangroupllc.com/api/energy/carbon-intensity

Live grid carbon intensity, deterministic. Answers "how clean is the grid right now", "gCO2 per kWh in Germany", "cleanest hour to run a job today". Current intensity + forward curve (to 48h) + cleanest and dirtiest slots, from NESO (GB national + 14 DNO regions) and energy-charts/Fraunhofer ISE (DE FR NL BE AT ES IT NO). No LLM, no key. Pair with /api/energy/compute-window for full job scheduling.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "04945113362A49CD8C1CB25A0746C357",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "0.01",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "C9AFB0CF337F4F32B7ECB8379798F8E4",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.01"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    }
  ]
}
https://x402.ottoai.services/tradfi-data

TradFi macro intelligence: indices, VIX, DXY, treasury yields, commodities, and individual stock quotes with moving average context.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://kronossignals.com/api/v1/macro

TradFi macro context for crypto traders and agents: VIX (fear gauge), DXY (US Dollar Index), US 10-Year yield, S&P 500 (SPX), and gold. Sourced from stooq.com and Yahoo Finance in parallel with 15-minute caching. All fields are null if sources are unreachable — never fabricated. $0.02 USDC via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://quokkapix.com/api/agent-unlock/coinbase-x402

QuokkaPix image agent unlock for image-standard. Media stays local on the user's device.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7437a817450BA32d22ebE8D2AC71611666999B8e",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x7437a817450BA32d22ebE8D2AC71611666999B8e",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x7437a817450BA32d22ebE8D2AC71611666999B8e",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x7437a817450BA32d22ebE8D2AC71611666999B8e",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.hergertsynthora.com/v1/defi-yields

SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlama, free, no key. $0.005 USDC x402 Base.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlama, free, no key. $0.005 USDC x402 Base.",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "30000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
      "resource": "https://api.hergertsynthora.com/v1/defi-yields",
      "scheme": "exact"
    }
  ]
}
https://ozmium.org/v1/loan/markets

Every listed Morpho Blue market on Base: marketId, full MarketParams (loanToken, collateralToken, oracle, irm, lltv- the id is re-derived and asserted, wrong-market proof), live borrow APY, and LLTV. The input universe for /v1/tx/loan. GET /v1/loan/markets.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "builderCode": "bc_cuzowhhb",
        "discoverable": true,
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x53a05c0eed6cbf065f31aedbae7b0d8ce1a0f4db",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://dns.use.x402atlas.com/whois

WHOIS domain lookup — raw registry text with registrar, nameservers, lifecycle dates and status, plus the responding server. Use the RDAP endpoint when you need parsed structured data.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://vaaya.ai/api/run/exa/search

Exa — semantic web search via our API key. numResults up to 100. For people/lead discovery set category:"people" with an open ICP query.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 360,
      "network": "eip155:8453",
      "payTo": "0x7c655d3d3944Bd27994dD81A036C3aFB19806C40",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://bykaranteli.com/api/x402/flow-vpin

Order flow toxicity (VPIN) HISTORY for BTC, ETH and SOL: 90-day daily VPIN track with closes plus the last 500 volume buckets .

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0db4c96d8b14f431f3bb8ce1a33f07d2c696a62c",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4JgPtoBWkQyG3QffVJC3bfgk7SCQrz9bx2SAEUTSVqzK",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://agents.samedaydesk.com/extract

Extract a public HTTP(S) web page into structured JSON with a clean text excerpt for LLM workflows: title, description, JSON-LD, Open Graph/Twitter metadata, headings, links, and AI-readiness signals. Fetches without JavaScript rendering, follows redirects, and applies a 12-second timeout and 3 MB read cap. The paid JSON keeps requestedUrl, finalUrl, source HTTP status, sourceOk, a nullable error, and capture limits; the excerpt is not the full page. Use /read for longer cleaned Markdown.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8904dF3DE6DFEe6a7C8cc38619d2f17806213Cee",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://svm402.com/discover

Discover newly active Solana tokens ranked by genuine organic activity, filtered to exclude wash trading. Optionally filter by minimum organic score and holder count. Call this to find tokens worth researching further with /analyze or /safety. — $0.01 USDC

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4ofUMGcRHsfr6LMY6AuaRSQpqyKsvibSbXmieQL4i8Dc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://toolcall.click/t/fx/rates

Foreign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. $0.002 USDC per call, pay via x402, no API key.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x84FA7Ea8303d4f503267e2e998A3F7D980e814a5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://kronossignals.com/api/v1/overview

Crypto market-wide derivatives snapshot: funding rate, open interest, mark price, and 24h volume for all 17 perpetual futures markets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE). One call replaces 17 separate signals calls. Includes per-asset data freshness. Real-time from Kronos market_signals. Pay-per-call via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://aiagentoracle.ai/api/v1/tokens

AgentOracle: list real-time on-chain crypto tokens sorted by market cap, with chain / min-liquidity / min-24h-volume / min-market-cap filters and limit+offset pagination. Each row includes price, 24h volume, market cap, liquidity, 24h price change, and confidence score.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x2feCabDFC849C76fdC28CA13Aa0Ab392753EF35C",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://stableenrich.dev/api/firecrawl/search

Firecrawl Search - Search the web

Base crawled 0x833589fC…
0.0252per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "25200",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "25200"
    },
    {
      "amount": "25200",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426459115",
        "recentBlockhash": "8faPdjro443pjYpeKEZ6CpxP3gikttynVgdNnSpubktg"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "25200"
    }
  ]
}
https://api.arkm.com/x402/intelligence/address

Get Arkham intelligence for an address. $0.20 per call.

Base crawled 0x833589fC…
0.2per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "200000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x942bD3E3073543c674Efc0C378D5bcE20f9120C1",
      "scheme": "exact",
      "maxAmountRequired": "200000"
    },
    {
      "amount": "200000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6bfN4hVbypmM1p4mV4qUpNushvm3W8GiAv1CrqEfiUdM",
      "scheme": "exact",
      "maxAmountRequired": "200000"
    }
  ]
}
https://chrono.schemasure.com/v1/business-time

Resolve a local time to an exact UTC instant with explicit DST ambiguity handling, business-day arithmetic, public-holiday status, and working-hour overlap across timezones. Detects ambiguous and nonexistent local times instead of silently shifting them. Declares its IANA tzdb release and per-jurisdiction holiday provenance.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x9876af0F6D8Ed5155Cd02d1ca56D128601612690",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.run402.com/tiers/v1/prototype

Set prototype tier ($0.10 USDC) — auto-detects subscribe/renew/upgrade

Base crawled 0x833589fC…
0.1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x059D091D51a0f011c9872EaA63Df538F5cE15945",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x059D091D51a0f011c9872EaA63Df538F5cE15945",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    }
  ]
}
https://coil.trade/api/crypto/gate

START HERE — the cheapest answer we sell ($0.001) and the first call most agents make. Is crypto risk-on right now? Whether the BTC 200-day master gate is open or closed, the LONG/CASH state of the BTC and ETH sleeves, and a one-line verdict, all evaluated on UTC daily closes by a long-only rules engine. Poll it every cycle; when the gate flips, step up to /api/board/regime for the equity tape and /api/board/indices for the index ladder ($0.005 each). Research, not advice.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "tag": "x402-global-challenge",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "decimals": 6,
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "name": "USDC",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 3600,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "decimals": 6,
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "name": "USDC",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 3600,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "decimals": 6,
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "name": "USDC"
      },
      "maxTimeoutSeconds": 3600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5HGarauHaGFynzwNBqLkKcQ4LFR4UCXKZE7bJuP6Ew2N",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604800,
      "network": "eip155:8453",
      "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://options.lonestaroracle.xyz/flow

Options flow intelligence — unusual activity put/call ratios large block trades

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.kadec0.xyz/v1/geocode

Geocoding and reverse geocoding. Converts an address or place name to latitude/longitude, or coordinates back to an address.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://google-trends.use.x402atlas.com/interest-by-region

Google Trends interest by region for a keyword — search popularity by geography for geo-targeting, local SEO and market research.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://perpsignals.use.x402atlas.com/pairs

Supported perpetual-futures trading pairs — the list of symbols (BTCUSDT, ETHUSDT, …) the funding-rate scanner and signals cover, as a clean snake_case envelope.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x82096bF08d81c14C678E915A04Fcf150958eE571",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x82096bF08d81c14C678E915A04Fcf150958eE571",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x82096bF08d81c14C678E915A04Fcf150958eE571",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/attested-screening

Attested sanctions and export-control screening: OFAC SDN and Consolidated (primary and alternate spellings), UN Securit

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://glim.sh/api/v1/youtube/get

Fetch a YouTube transcript from a video URL or 11-char id (video_id, also accepted as ref or url); returns a presigned download URL to the transcript

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.ottoai.services/kol-sentiment

Premium alpha from top 50 crypto KOLs. Real trading signals, trending token picks, and sentiment from influencers who move markets.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://unwrap.use.x402atlas.com/

Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.

Base crawled 0x833589fC…
0.009per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "9000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact",
      "maxAmountRequired": "9000"
    },
    {
      "amount": "9000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact",
      "maxAmountRequired": "9000"
    },
    {
      "amount": "9000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact",
      "maxAmountRequired": "9000"
    },
    {
      "amount": "9000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "9000"
    }
  ]
}
https://router.mudko.com/api/x402/route

OnRamperX is a non-custodial value router for agents and humans: fiat<->crypto and cross-chain via one quote interface (Coinbase Onramp v2, Relay, x402). This endpoint returns the router's live capabilities and rail status; use /api/x402/quote for a ranked route. Settlement centers on USDC on Base.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x53598173ce7c26025bab0520d9e9d0c28fbcf7de",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://gateway.stride20k.com/v1/category-breakdown

Current x402 ecosystem composition: services per category (Agentic.Market taxonomy: Data, Inference, Search, Infra, Media, Social, Trading, Travel...), each with catalog share and 7-day delta, from our collector's latest observation run (~3x/day since 2026-07-06). Shows where x402 supply is concentrating and which categories are growing. Deterministic read from archived observations; no upstream calls at request time. Free snapshot: /v1/market-pulse.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x552Cc4A10878C7F20574489D47184249657Ca3f6",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://pro-api.coinmarketcap.com/x402/v3/cryptocurrency/quotes/latest

Get the latest market quotes for one or more cryptocurrencies.

BNB Smart Chain crawled we can't settle this yet 0xcE24439F…
10,000,000,000per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "69ef242e50455dcce02f3061"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1",
        "x402PaymentConfigId": "69ef242e50455dcce02f2e77"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2",
        "x402PaymentConfigId": "699dbab79f32ffde650104aa"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:8453",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "69ef242f50455dcce02f4530"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "6a0c0019f37d0e2f6c9a3610"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1",
        "x402PaymentConfigId": "6a0c0062f37d0e2f6c9a3612"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "69ef242f50455dcce02f3c2f"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    }
  ]
}
https://evm-gas.apitoll.cloud/v1/evm/gas

Multi-chain EVM gas price oracle for AI agents — 17 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche…). One x402 call returns slow/standard/fast EIP-1559 tiers as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei (plug straight into a viem/ethers tx, no conversion, exact even on sub-gwei L2s), plus base fee, head block, and fullness, from a live eth_feeHistory call. Pass ?chain= to switch chains.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xcc69d619E6053F88A4845066518f465bD06Fc96c",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.ottoai.services/base-season

Base social intelligence: a Base sentiment read + quality-screened Base tokens (CoinGecko-listed, market-cap/age/liquidity gated) catching attention, each labelled with the basis it stands on (`rankedBy`: measured trusted-KOL signal, or the on-chain screen plus engagement), with KOL quotes inside a published window (`evidenceWindowDays`). Served from a cached snapshot while fresh (≤1h) and regenerated on demand when a read finds it stale.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://x402.ottoai.services/weather

Live weather for any city or lat/lon worldwide. Returns current conditions — temperature, feels-like, humidity, wind and sky — plus a 5-day forecast with daily highs/lows and precipitation probability. City names auto-geocode (no coordinates needed). Refreshed hourly with transparent freshness metadata. Keyless, pay-per-call, agent-ready JSON.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.telemost.io/v1/ads/networks

Telegram advertising data: available ad networks and their minimum deposits, compare where to run campaigns.

Base crawled 0x833589fC…
0.0165per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "16500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xf99B281010C5e6CBcF486d7ef108B315Be7cE0e9",
      "scheme": "exact",
      "maxAmountRequired": "16500"
    },
    {
      "amount": "16500",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9wNzkrGAqbv1DSfM5EM12qBPdUUiaV3Vjg4wqu12H8j",
      "scheme": "exact",
      "maxAmountRequired": "16500"
    }
  ]
}
https://x402.lucidcove.org/v1/ping

Settlement canary: returns a timestamped pong JSON after USDC micropayment. Use to verify x402 client + wallet + facilitator end-to-end.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x75aBce556c2450D58dAd3779c57f5eb0885B9758",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://space-weather.use.x402atlas.com/now

Current space-weather conditions — normalized NOAA SWPC Kp, solar wind, magnetic field, and X-ray flux used for solar-flare monitoring, with observation times and freshness.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://hyperliquid-accounts.use.x402atlas.com/spot

A Hyperliquid account's spot token balances, for any 0x address.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://voidfeed.ai/v1/content/extract/dataset/latest

Returns clean, normalized datasets of AI model benchmarks, pricing, leaderboard scores, and Ethereum EIPs, parsed from sources that are costly to scrape.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "decimals": 6,
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x71033AB6eD376a0B53D1826eA632DDFeC96b3661",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "2VS2kvhZU5doNpweAQ34wxwXqPdVvEdR35K92CzsEoH1",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://kronossignals.com/api/v1/stablecoins

Stablecoin market cap, top-10 breakdown by dominance, and 7d/30d supply flows (mint/burn) via DeFiLlama. Shows total stablecoin market cap, per-coin dominance %, and net capital entering/leaving crypto. 15-minute caching. Never fabricated — returns available:false when sources are unreachable. $0.02 USDC via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://rpc.nodeflare.app/base/x402

Base RPC (chain 8453): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:137",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:42161",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0xB87E1A2cc2B4643F2892768e80e41167F17C5860",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x64cC42B1cE598e3aBcfBB64Df4688521DDBf1f0A",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:137",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x93F6601151cCB08F333AB4B1CCcfb1e188c0bE44",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:42161",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    }
  ]
}
https://3route.agents.bakingbad.dev/api/v6.1/:chainId/quote

Price a swap without building a transaction. Returns expected input, output, and gas without constructing an executable transaction. Quotes are informational and can change with liquidity and chain state.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "AZ59bSccJmQu8Ljic1c5zxhjZitVbbutUYjBNwKLqfyD",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5D89060682fcE50eCaa7600aF6A5645Bd2b107Eb",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x26e80e1d98d89E933f2D31955E719D19d214E779",
        "version": "2",
        "withdrawDelay": 3600
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5D89060682fcE50eCaa7600aF6A5645Bd2b107Eb",
      "scheme": "batch-settlement",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x796Ea11Fa2dD751eD01b53C372fFDB4AAa8f00F9",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42793",
      "payTo": "0x5D89060682fcE50eCaa7600aF6A5645Bd2b107Eb",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402-adsb.x402-adsb-worker.workers.dev/aircraft

Live aircraft positions over Kansai / western Japan from an independent ADS-B receiver (~1s freshness): position, altitude, speed, squawk, plus callsign→route resolution (origin/destination airports) from official timetables.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x751c6ACf5D1b704A1AD983a526207600968b4e41",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://vibesprings.net/api/price/eth-usd

Real-time ETH/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x38C063312719220c676E988f0DEE14B4ec0e44C8",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.nansen.ai/api/v1/profiler/address/current-balance

Get Address Current Balance Data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://intel.twzrd.xyz/v1/intel/quick/:solana_address

Seller wash risk and wallet reputation for a Solana x402 merchant: wash label, fleet %, payer count, plus tier + score. 0.001 USDC. No signed V7 receipt (use GET /v1/intel/trust for the portable proof). Free preflight is allow|warn|block only.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Seller wash risk and wallet reputation for a Solana x402 merchant: wash label, fleet %, payer count, plus tier + score. 0.001 USDC. No signed V7 receipt (use GET /v1/intel/trust for the portable proof). Free preflight is allow|warn|block only.",
      "extra": {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "decimals": 6,
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
        "recentBlockhash": "CbpLKAMtUGbYqJH2fQ3EYLz2nMAtkpAKcfXrZHyDxFao"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 45,
      "mimeType": "application/json",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GFpLvocNdEjnSsLH3VJQL6wGcjGxTbUBrj6fqN3Qe1Gs",
      "resource": "https://intel.twzrd.xyz/v1/intel/quick/BJGdsDXJFy63eCAnX3UmGfShp8BuqbtkTfcamyRGr7VQ",
      "scheme": "exact"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Seller wash risk and wallet reputation for a Solana x402 merchant: wash label, fleet %, payer count, plus tier + score. 0.001 USDC. No signed V7 receipt (use GET /v1/intel/trust for the portable proof). Free preflight is allow|warn|block only.",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 3600,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "payTo": "0xfB9819456bd9248A9D3c9E12F4cb7bBda5fc2578",
      "resource": "https://intel.twzrd.xyz/v1/intel/quick/BJGdsDXJFy63eCAnX3UmGfShp8BuqbtkTfcamyRGr7VQ",
      "scheme": "exact"
    }
  ]
}
https://svm402.com/price/:address

Current price and liquidity data for a Solana token given its mint address, sourced from Jupiter and Helius. Call this for a quick, cheap market quote when you do not need the full analysis. — $0.01 USDC

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4ofUMGcRHsfr6LMY6AuaRSQpqyKsvibSbXmieQL4i8Dc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.kadec0.xyz/v1/scrape

Scrape any web page to clean markdown. A keyless web scraper that converts a single URL into LLM-ready markdown plus structured metadata (title, headings, links, word count), so an agent can read a page without running a browser. A per-call alternative to Firecrawl's scrape endpoint, with no API key and no account. Single page per call, not a site crawler.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://x402.api.browser-use.com/api/v3/sessions

Browser Use: AI browser automation agents in the cloud. POST a natural-language task and an agent navigates websites, fills forms, clicks buttons, extracts structured data, and completes multi-step workflows just like a human. Stealth-enabled remote browsers with CAPTCHA solving, residential proxies, live session view, and optional structured output. Payments top up your balance; managing your session is free — you only pay to open a new browser. Docs: https://docs.browser-use.com

Base crawled 0x833589fC…
1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC0CE6Bfb16bB6B6e10A9D806e509D8d20996380F",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    },
    {
      "amount": "5000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC0CE6Bfb16bB6B6e10A9D806e509D8d20996380F",
      "scheme": "exact",
      "maxAmountRequired": "5000000"
    },
    {
      "amount": "100000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x8CDA367232d78c067116e3260da881d2da8ffa39",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC0CE6Bfb16bB6B6e10A9D806e509D8d20996380F",
      "scheme": "upto",
      "maxAmountRequired": "100000000"
    }
  ]
}
https://mcp.deep3.ai/tools/wave-1

Short-term price-movement forecast for any crypto token across 7 time horizons.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xCa4556C3f1FAB4af46a089D6346c86F0CaC63A2D",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.polym.uk/resolution-risk

UMA resolution dispute and flip base rates by category and criterion clarity; descriptive historical compatibility, not a market-specific forecast. BEFORE YOU PAY: free substitute https://dash.polym.uk/uma-base-rates.json and https://dash.polym.uk/uma-flip-rate.json. THIS ADDS: The two artifacts joined into one response, dispute axis and flip axis already aligned by category. The underlying numbers are the same ones in those two free files.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "iconUrl": "https://polym.uk/favicon.svg",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/base/token_price/:address

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x110cdBba7FE6434Ec4CE3464CC523942ad6Fb784",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8XhngTRitTcUJMiaDJ6azw8GRSiFPpwhnmV3HYQLHUpL",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.ottoai.services/defi-analytics

Where DeFi capital is flowing — TVL rankings, fastest-growing vs bleeding protocols, chain-by-chain breakdown, and per-protocol deep dives. Track capital rotation and protocol health. Powered by DefiLlama.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://zoningverdict.com/api/v1/parcel/resolve

Address-to-zoning lookup for published municipalities. Coverage: 64 municipalities in 6 states. Resolves a street address to supported municipality and, where GIS is verified, zoning district_code with lookup method. Positioning: Records tell you what's on file; ZoningVerdict tells you what the ordinance actually says, independently verified, with the citation. Responses include source citations and last-reviewed dates. Price: $0.01/call.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xc1dAb3C368f8B6595C49Df67f4a17225E0CEB785",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://wiki.use.x402atlas.com/summary

Wikipedia article summary — plain-text and HTML extract, short description, thumbnail and Wikidata id for any title, in a clean normalized envelope with CC-BY-SA attribution.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6A706D6Fcf192C15fB592d7502258Ed41425DD36",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x6A706D6Fcf192C15fB592d7502258Ed41425DD36",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x6A706D6Fcf192C15fB592d7502258Ed41425DD36",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.kadec0.xyz/v1/serp-read

Web search plus page reading in one call: answer with sources. Runs a web search, scrapes the top results, and returns the ranked search results together with each page's content as clean LLM-ready markdown, so an agent gets the SERP AND the underlying text without a second round of scrape calls. Per-page fetch errors are reported honestly per URL.

Base crawled 0x833589fC…
0.08per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "80000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "80000"
    }
  ]
}
https://hotels.use.x402atlas.com/reviews

Hotel reviews — a hotel's guest reviews by property token: rating, date, text, per-aspect subratings, highlights & the owner's reply, with category filter & paging.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://ssl.use.x402atlas.com/check

SSL/TLS certificate check: expiry, issuer, SANs, chain validity, hostname match, negotiated protocol/cipher, and weak-algo warnings for a public HTTPS host. Clean JSON.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD7FE185ddaa9664c9211EC1ccDAc073Ef79215bf",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xD7FE185ddaa9664c9211EC1ccDAc073Ef79215bf",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xD7FE185ddaa9664c9211EC1ccDAc073Ef79215bf",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.clashofcoins.com/x402/cheap-health

Low-cost gateway health probe for real x402 settlement checks

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8b29DABD6fBb5A09DAcbC7978eaed66A8540721d",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://holidays.use.x402atlas.com/check

Holiday date check by country or subdivision — determine whether one ISO date is an official public holiday.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.printmoneylab.com/api/v1/kr-prices

Korean exchange prices (Upbit, Bithumb) for a single token in KRW

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "resource": "https://api.printmoneylab.com/api/v1/kr-prices",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xcF9223eCe895258dEa8D288AEBcf846Ab8E342fB",
      "resource": "https://api.printmoneylab.com/api/v1/kr-prices",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "resource": "https://api.printmoneylab.com/api/v1/kr-prices",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xcF9223eCe895258dEa8D288AEBcf846Ab8E342fB",
      "resource": "https://api.printmoneylab.com/api/v1/kr-prices",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "resource": "https://api.printmoneylab.com/api/v1/kr-prices"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3Ywxk31SvWKwZBdY6bLvjmn5h4mzWcT3HJ5UZbYXoVy9",
      "resource": "https://api.printmoneylab.com/api/v1/kr-prices",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://places.use.x402atlas.com/local

Google Maps local business search — find places by query and map location (coordinates viewport), returning ratings, reviews, address, phone, website, hours & service options as clean JSON.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://crypto.apitoll.cloud/v1/crypto/global

A snapshot of the total crypto market: aggregate market capitalization in USD, 24-hour trading volume, Bitcoin and Ethereum dominance percentages, 24h market-cap change, and the number of active cryptocurrencies and markets. The macro view in one call. Sourced from CoinGecko.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3dA40A9aD36640a2C0F533BAC368490095574664",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5Wxg3V6gcmFmmP6SXmGZQAUZPFYsSwoeN2Qewt5BotWz",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://vedetta.dethboy.com/v1/feed

Recent analyst desk posts as a stream (?since_id=&asset=&limit=): cached, instant, half a cent. Poll it cheaply; escalate to a live read when something moves. Descriptive research, not financial advice.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x21E16F1bc3aA847236354C8193D0cB21cF412eFA",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://eagle.quickai.build/check

Eagle Eye v1.0.0 — U.S. enterprise-grade wallet compliance screening. OFAC SDN + Circle USDC blacklist on Base. Signed audit receipts. Certified single-address check.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x85557C90027354eAeFFe9Ee4B4f4014818d8D3e1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://dokimo.augaster.com/paid/verify

Dokimo Verify API (GET) - scheme demo: recomputes a sample dokimo-merkle-v1 proof to its root. For real caller verification, POST /paid/verify (recompute + on-chain anchor check). Scheme: /merkle-spec.html.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xb3Cc1566b213Dc97F6aaC5984e849Df2f2391772",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.hyperextend.xyz/v1/outcome_ctx/%231000/latest

The most-recent N HIP-4 outcome-side rows (≤5000). Priced per row ($0.000025 premium); served live.

Base crawled 0x833589fC…
0.003475per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3475",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "exact",
      "maxAmountRequired": "3475"
    },
    {
      "amount": "0.003475",
      "asset": "USDC:0x6d1e7cde53ba9467b783cb7c530ce054",
      "extra": {
        "destinationDex": "spot"
      },
      "maxTimeoutSeconds": 60,
      "network": "hyperliquid:mainnet",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "exact",
      "maxAmountRequired": "0.003475"
    },
    {
      "amount": "3475",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
        "version": "2",
        "withdrawDelay": 86400
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x548fC289526ab2F0391D562a723cdA64Bbf1abc4",
      "scheme": "batch-settlement",
      "maxAmountRequired": "3475"
    }
  ]
}
https://agentres.dev/api/wait-times

Live restaurant wait times from camera-based crowd data. One call lists every monitored location with its slug, open status, current crowd count, and wait in minutes.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x66717045858d9f598e2ebd046bf42a0b1063c0fa",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 3600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FCFgb8Z63uwim2QpDJW4TGwLqZoENjckwGosLmg26zBS",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://hyperliquid.use.x402atlas.com/perps-meta

The Hyperliquid perpetuals universe — tradeable symbols with max leverage and size decimals, without live context.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.n0brains.com/x402/macro

Current cross-asset macro conditions for crypto: liquidity, volatility, rates and upcoming calendar risk (CPI, FOMC, etc), with a per-asset directional bias only when the live composite supports one. For setting risk posture, not a daily signal feed. Not financial advice.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xc1793B8AA0D25193117EF025f145994e1c02011F",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://www.x402scan.com/api/x402/merchants

Paginated list of merchants (top recipients by volume)

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x2EC4545f96A24876764bF2B04D54E66A1351bE71",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://stabletube.dev/api/download

Create a paid StableTube download job. StableTube downloads the video server-side, uploads the mp4 to S3, and returns a temporary StableTube-owned download URL when ready.

Base crawled 0x833589fC…
0.1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xF4B8037bF3709f37c5FfE224004D2e61833d084C",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    }
  ]
}
https://www.mahastrategies.com/api/v1/compress

Compress long documents and RAG inputs into token-budgeted, deduplicated context packs with source-linked provenance. Returns original and compiled token counts, so the saving is verifiable. Net-positive above N = fee / (r x p) tokens: r your reduction, p your input price. Extractive and budget-bound, so check includedPassages before relying on it. Ranks Latin, Cyrillic, Greek, Arabic and CJK; CJK coarser (bigrams). Not for tabular or heavily-structured payloads.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://4yearcycle.com/x402/tenders

EU public procurement tender notices from the official TED (Tenders Electronic Daily) v3 API, filtered by CPV product/service code, country of performance and free-text keywords over a recent publication window; returns structured JSON per notice with title, buyer, deadline, publication date, CPV codes, notice URL and German PDF link.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9862ca83b72aB95521F457aFf6e6EFb03d8164C3",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://pro-api.coingecko.com/api/v3/x402/onchain/search/pools

Search onchain DEX pools and token, by contract address, name, or token symbol.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x110cdBba7FE6434Ec4CE3464CC523942ad6Fb784",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8XhngTRitTcUJMiaDJ6azw8GRSiFPpwhnmV3HYQLHUpL",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://brasil-dados-api.onrender.com/cambio

Official USD/BRL and EUR/BRL exchange rates (PTAX, Central Bank of Brazil).

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x649006bC937E7a60F98e49455D0fE3425321A3b0",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "yUdt7ThMbP5mvtLtURiwK3wgnhexuFtbKC9LEgb1Q8e",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://scvd.store/api/buy/small_blessing

A Small Blessing. One blessing slip from a 87-slip jar filled in 2 seasons so far, never the same slip twice in a row, delivered instantly with purchased_text: an ed25519 envelope binding the exact words and purchase certificate. Full listing: https://scvd.store/menu/small_blessing. MCP tool: buy_small_blessing.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://omniterminal.app/api/x402/v1/market-risk/:symbol

Omni Terminal assesses one Hyperliquid market before entering, sizing, or reducing a position using all published mark-anchored liquidation levels, explicit flow direction, margin stress, current funding/carry, and enriched AI news.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://orchard-data.letom1176.workers.dev/api/fear-greed

Crypto fear & greed index (current + previous reading). JSON.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xc863b1c6658971ca427e90665dccce90a41a2bc2",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402-seller.onrender.com/gas/price

Latest Henry Hub natural gas spot price (USD/MMBtu), sourced from the U.S. Energy Information Administration. Data lags several business days behind the market; not live trading data.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xbd61dfb01f81c91f02b0ccd51b0220e0c8918639",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://fresh-feeds.foomworks.workers.dev/feeds/mcp-registry/changes

Delta of the MCP registry since a daily baseline: added, removed, and changed (score/status) servers — the cheap habit endpoint for repeat callers.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x63347CD326a50696F76cfE4B8Ce079D3c8ED3039",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://kronossignals.com/api/v1/volatility/btc

Realized volatility for 16 crypto assets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT): 7-day, 30-day, and 90-day annualized realized vol using three estimators (close-to-close, Parkinson, Garman-Klass) from Binance daily OHLC closed candles only. Essential for risk management, position sizing, and options pricing. Pay-per-call via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://tick.hugen.tokyo/tick/symbols

List all available FX symbols with their current quality state and source count. AI agent API for discovering available instruments before subscribing to tick data. Accepts USDC payments on Base and Solana

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4du4AfkxFvtqEWaoRWrifoSXCknuMpAGh3BXrFPFvXFh",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://schemasure.com/v2/extract

Extract strict, JSON-Schema-valid typed JSON from unstructured text or HTML. Failed extraction calls are not settled. Primary x402 V2 API for production agents.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x9876af0F6D8Ed5155Cd02d1ca56D128601612690",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.ottoai.services/base-ecosystem-news

Base-chain ecosystem news for Base-native agents, not the general crypto firehose. Up to 12 Base-scoped headlines from the last 48h, each with its own permalink and publication timestamp, screened against the general /crypto-news feed; `screen` states what was dropped. The AI topic read is optional and is withheld, never padded with macro, when there is no Base coverage. Refreshed hourly from cache; a read past the freshness window pulls inline.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://sqlpermit.schemasure.com/v1/guard/sql

Decide whether an agent-authored PostgreSQL statement complies with an execution policy, using PostgreSQL's own parser rather than pattern matching. Detects statement stacking, data-modifying CTEs, COPY PROGRAM, privilege changes, and dangerous functions that read as ordinary SELECTs. Returns reason codes and an optional short-lived signed permit bound to the exact normalized statement. Never connects to your database.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x9876af0F6D8Ed5155Cd02d1ca56D128601612690",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402tap.com/api/web-search

Real-time web search (via Exa) — ranked results with title, URL, published date, author, and relevance score for a query

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://svm402.com/analyze

Full analysis of a Solana token given its mint address — current price, liquidity, safety risk score, honeypot check, and top-holder concentration. Call this when you need a complete due-diligence report on one token. — $0.03 USDC

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4ofUMGcRHsfr6LMY6AuaRSQpqyKsvibSbXmieQL4i8Dc",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://crypto.apitoll.cloud/v1/crypto/sentiment

The Crypto Fear & Greed index: the current market-sentiment score (0–100) and its classification (Extreme Fear → Extreme Greed), plus optional daily history. A widely-watched contrarian signal for crypto market timing. Sourced from Alternative.me.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3dA40A9aD36640a2C0F533BAC368490095574664",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5Wxg3V6gcmFmmP6SXmGZQAUZPFYsSwoeN2Qewt5BotWz",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/gas-fees

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402tap.com/api/weather

Live current weather conditions for any city, sourced from Open-Meteo

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.tavily.com/search

Tavily Search - advanced mode

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "terms": "By using the Tavily solution, you agree to be bound by the Terms of Use (https://tavily.com/terms) and Privacy Policy (https://tavily.com/privacy) and accept that Tavily disclaims any liability with regard to the AI agent and cryptocurrency payments.",
        "tier": "advanced",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xea561a1d080c2cf6f0c5024f8e8a882ac301c9ad",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "0.016",
      "asset": "iso4217:USD",
      "extra": {
        "quoteToken": "eyJhbGciOiJFUzM4NCIsInR5cCI6IkpXVCIsImtpZCI6InRhdmlseS1hZ2VudHBheS14NDAyLXNpZ25pbmcta2V5In0.eyJpc3MiOiJodHRwczovL3g0MDIudGF2aWx5LmNvbSIsImF1ZCI6ImF3czptYXJrZXRwbGFjZSIsImlhdCI6MTc4OTc2NzEwMCwiZXhwIjoxNzg5NzY3NDAwLCJqdGkiOiI4ZWEyOWQ0NC0zNTViLTRmMDQtODNhMy00ODQxNmQ5NjQxNzciLCJwcmljZSI6eyJhbW91bnQiOiIwLjAxNiIsImN1cnJlbmN5IjoiVVNEIn0sInBheVRvIjoic2VsbGVyIiwicmVmZXJlbmNlIjoidGF2aWx5LXNlYXJjaC1hZHZhbmNlZCIsInNldHRsZW1lbnQiOnsicHJvZHVjdF9pZCI6InByb2QtbWFlZXQ2c2FqZWc0MiJ9fQ.xps7p4sRrBc1bRlrbeAShX4mM1JtAsPcKCKlUSVDuxMvRIpRBfPsGoMNTenTYCoOnXouGvelCed3OxDrRV-rlTqKaLSnvs57ILKFLEAy4DScV2Nyk6jjC-L6gzlxGZ3L",
        "reference": "tavily-search-advanced",
        "settlement": {
          "product_id": "prod-maeet6sajeg42"
        },
        "tier": "advanced"
      },
      "maxTimeoutSeconds": 300,
      "network": "aws:base",
      "payTo": "urn:x402:agent-pay:see-quote",
      "scheme": "agent-pay",
      "maxAmountRequired": "0.016"
    }
  ]
}
https://x402.ottoai.services/token-price

Live DEX token price in USD by ticker symbol or contract address across Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism and Avalanche (bare 0x tries Base then all chains, else network:address). Symbols resolve to the canonical top-market-cap asset — squat-proof. Flat JSON: price, 24h change, volume, market cap, FDV, liquidity — echoes the matched deployment. Token price, crypto price, DEX price. $0.001 per call.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://twitter.use.x402atlas.com/community-details

Get complete public information for an X community.

Base crawled 0x833589fC…
0.006per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "6000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "6000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "6000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    }
  ]
}
https://api.wallettriage.com/scan

WalletTriage — real-time wallet risk check: dangerous ERC20 approvals cross-referenced with a live exploit threat feed. Returns risk_score (0-100), risk_level and actionable findings.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93835CF2bD459e72B577Ed944E33578d8529Dacc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://kronossignals.com/api/v1/options-iv/btc

Implied volatility surface for BTC and ETH from Deribit options (public API, no auth). Returns ATM IV (annualized %), IV rank and IV percentile from Kronos iv_history (daily cron), term structure (weekly/1m/3m ATM IV + contango/backwardation/flat shape label), 25-delta risk reversal (BS-approximated strikes), 10-delta wing IVs, max-pain strike across top-5 expiries, and a vol-regime label. Falls back to OKX if Deribit is unreachable. $0.03 USDC via x402.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://api.bitrefill.com/x402/esims/search

Search prepaid eSIM data plans for 180+ countries and regions. Pay in USDC via x402, no account.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.nativebtc.org/v1/mempool/stream-ticket

Pay once to receive a short-lived WebSocket ticket for the live Bitcoin mempool stream.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://orcpin.dev/v1/endpoint-reliability

x402 endpoint reliability pre-flight: factual service-delivery measurements of a target x402 endpoint before an agent pays it — reachability/uptime rate, valid-402 rate, response latency (p50/p95/p99), last status, and sampled paid delivery verification. Facts only (no trust score, no 'scam' label). Check whether an endpoint is live and delivers before spending on it.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.brazilayer.com/v1/tributos/calendario

Brazil's tax transition calendar, year by year from 2026 to 2033: which taxes are in force each year, at what rate, and when PIS/COFINS, IPI, ICMS and ISS are extinguished. The context an agent needs to know whether the tax rule it used is still valid on the date of the transaction. Free sample, no payment: https://api.brazilayer.com/v1/tributos/amostra

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://agentdataapi.onrender.com/launches

Upcoming SpaceX launches (next 5) with mission, pad, and T-0 details

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x506c3995cb7b9bb6ea4d2f95e1e43461b74c9aff",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://sat.ipintel.ai/address-to-coordinates

Worldwide forward geocoding for agents. Convert an address, landmark, city, postcode, or place name into latitude and longitude with normalized address components and confidence metadata.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0550779CFBc832657A8BB46BAC9f359A5ad038B8",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://blockrun.ai/api/v1/pm/polymarket/markets

Query Polymarket markets with filtering, sorting, and pagination

Base crawled 0x833589fC…
0.0085per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
      "scheme": "exact",
      "maxAmountRequired": "8500"
    }
  ]
}
https://brokenkey-api-link-tau.vercel.app/api/brokenkeyremapperlink

Purchase and download the Broken Key Remapper software (one-time license).

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xB91504d6F77d36923376c302cCC0237dF0efAa35",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://api.kadec0.xyz/v1/papers

Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://readx.sh/api/search

Search tweets. Start the query with @ (or add f:user) to search users instead. Example: GET /api/search?q=typescript

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x13E060ADcc6F4b731Da8382B333027B8B2bfF707",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "CHHWRYyo8exGvcLGn3AxzHEZseLZDTnq3FaYkzZVQDQr",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://poketpoker.com/api/play/deal

Deal one hand of Texas Hold'em against PoketPoker's bots and find out how your play compares. Five difficulty tiers; the top tier plays range-aware expected-value poker and beats every tier below it. Returns the table and a ticket; playing the hand out costs nothing more. Markdown by default, JSON with format=json.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x59F45516ea4a2481ff45Cf431D753d24B0Ca6213",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://lionx402.com/api/x402/composite-bundle-json

Multi-chain keyless RPC + Ed25519-attested enrichment, one call

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/regwatch-feed

Structured feed of regulatory changes affecting AI systems: jurisdiction, instrument, change type, effective dates, comm

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://marketdata.use.x402atlas.com/insider-trades

SEC Form 4 insider transactions for a US stock — director/officer buys and sells with shares, price and value, a smart-money signal.

Base crawled 0x833589fC…
0.015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9D667BC76F166322df087b3B3927D4d83D44A5d0",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x9D667BC76F166322df087b3B3927D4d83D44A5d0",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x9D667BC76F166322df087b3B3927D4d83D44A5d0",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    }
  ]
}
https://coingecko.use.x402atlas.com/trending

Trending crypto coins in the last 24h — the most-searched tokens on CoinGecko right now with name, symbol and market-cap rank.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://hl-tool.darren-pi.workers.dev/v1/funding/extremes

Full Hyperliquid funding extremes (carry-cost leaderboard)

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x74718dd5a04e0a0a2bfaf3bd06adb27032c67f7f",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.vaults.fyi/v2/vaults

Retrieves a filtered list of vaults with their basic information including address, network, associated asset details, and transactional support status.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "symbol": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x108BCd8a07C3fdfca3Aa500784A8573123a1029F",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
        "symbol": "USDC",
        "version": "2",
        "withdrawDelay": 900
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x108BCd8a07C3fdfca3Aa500784A8573123a1029F",
      "scheme": "batch-settlement",
      "maxAmountRequired": "2000"
    }
  ]
}
https://kronossignals.com/api/v1/funding-extremes

Crypto funding-rate extremes screener: scans all 17 perpetual futures markets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE). Uses z-score (30-day baseline) to identify statistically extreme funding: |z|≥2 = extreme, |z|≥3 = critical. Returns only assets clearing the threshold. Real-time from Kronos market_signals (Bybit data). Pay-per-call via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://agent402.tools/api/bestsellers

What agents actually pay for on a 500+ tool x402 catalog - the paid intelligence layer over Agent402's own sales ledger, the one demand signal that never reaches the chain (settlements are on-chain; WHICH tool was bought is not). Aggregate sales totals are free at /api/sales; this adds the per-tool layer they deliberately omit: pick the window (days 1-90) and the ranking lens with sort: 'buyers' (distinct paying wallets, default - the whale/wash-resistant read), 'sales' (volume), 'usd'.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "outputSchema": {
        "properties": {
          "bestsellers": {
            "type": "array"
          },
          "days": {
            "type": "integer"
          },
          "generatedAt": {
            "type": "string"
          },
          "limit": {
            "type": "integer"
          },
          "note": {
            "type": "string"
          },
          "persistent": {
            "type": "boolean"
          },
          "recordingSince": {
            "type": "string"
          },
          "sort": {
            "type": "string"
          },
          "totals": {
            "type": "object"
          }
        },
        "required": [
          "days",
          "sort",
          "limit",
          "recordingSince",
          "persistent",
          "totals",
          "bestsellers",
          "note",
          "generatedAt"
        ],
        "type": "object"
      },
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:43114",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:1329",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "6000",
      "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:10",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "5000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42220",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x8CDA367232d78c067116e3260da881d2da8ffa39",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "upto",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "50000",
      "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
      "extra": {
        "areFeesSponsored": true
      },
      "maxTimeoutSeconds": 300,
      "network": "stellar:pubnet",
      "payTo": "GDNJXCKW7ZM7GEEVP674TWPU26YJNBQ2FI4ZIPRKTPTNUEJMDHFJWWRL",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://minifetch.com/api/v1/x402/run/seo-page-audit

Runs a full technical SEO audit on a single web page. Verify redirects, headers, meta tags, indexability, JSON-LD, missing or conflicting canonicals and more. No black-box scoring; just deterministic, composable signal you can act on. Every threshold is documented at https://minifetch.com/skills/seo-page-audit/SKILL.md Supports GET & POST

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xffA9155A0e4B3d8d42351Da226cC1feEe449686f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "46vMcwuC4sK11sB3gkLhyA7J7GEwfkhn5rFyDtihBwqe",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.you.com/v1/search

You.com Search API: real-time web search returning ranked results grouped by section (results.web, results.news), each with url, title and description; web results also carry snippets. Use when an agent needs fresh, citable web data (news, markets, company facts) to ground a decision. Query params: query (required), count 1-100 (default 10), livecrawl (web|news|all; fetches live page contents, charged per result), country, freshness. Paid per call in USDC.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 600,
      "network": "eip155:8453",
      "payTo": "0xc327D0aEb5f65B514b193b5e5A95cC6F4060815f",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBQ2FrH49gvKXu1zg7tguoLwaofn5S4NnuMs5JSYQ5GX",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://agent402.tools/api/demand-radar

What agents want that no one is serving yet - the paid intelligence layer over Agent402's agent-demand board, for x402 sellers deciding what to build next. Ranks the aggregated wish clusters (searches that found nothing + explicit tool requests) and adds the analysis the free raw feed (/api/wishes) doesn't have: signalType classifies each cluster as 'explicit-request' (agents proactively asked - build it), 'discoverability' (dominated by find-misses - the capability may exist but ranking.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "outputSchema": {
        "type": "object"
      },
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:43114",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:1329",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "6000",
      "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:10",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "5000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42220",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x2A89407a98A0732b7fD578c4E156B7166540EB5A",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "upto",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "50000",
      "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
      "extra": {
        "areFeesSponsored": true
      },
      "maxTimeoutSeconds": 300,
      "network": "stellar:pubnet",
      "payTo": "GDNJXCKW7ZM7GEEVP674TWPU26YJNBQ2FI4ZIPRKTPTNUEJMDHFJWWRL",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.bitrefill.com/x402/checkout/info

Discover the Bitrefill x402 storefront: supported networks, the full route flow, and wallet persistence rules.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://peptidesdirect.io/api/v1

PeptidesDirect full catalogue feed: every product with variants, EUR prices, live stock and lab reports (JSON)

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5e4413F7EC69B67c07A60c4F1f75391370F79b13",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://news.apitoll.cloud/v1/cointelegraph/news

Latest crypto news and breaking headlines, real-time from Cointelegraph. Search any topic (bitcoin, ethereum, DeFi, regulation, market sentiment) or pull the live feed, with full article text across 14 languages. Built for agents tracking crypto markets, tokens, and Web3.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xcc69d619E6053F88A4845066518f465bD06Fc96c",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "DqSMReqFwS3SqfghkM22gaXnYaX73t357cpLEmbHP6Vh",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://trabotpro.it/api/a2a/x402/pearl/detail

Hero SKU: Pearl Research L1 telemetry (pearld RPC, community nodes, poll history). Free trial: GET /api/a2a/pearl/status

Base crawled 0x833589fC…
0.04per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "40000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x175562431dFcb38aB3a1762B7fc1fbC08A93BbbB",
      "scheme": "exact",
      "maxAmountRequired": "40000"
    }
  ]
}
https://app.wellnizz.com/labs/search

Find nearby supported lab collection locations or official locator handoffs.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x18B9fD16aA724e8D214eCCE525d16CEB3cFb3e87",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x18B9fD16aA724e8D214eCCE525d16CEB3cFb3e87",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://x402.ottoai.services/trending-altcoins

Top 3 hottest altcoins traders may want to ape into, based on news and Twitter analysis. DYOR.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://x402.ottoai.services/fx-rates

Live + reference foreign-exchange (forex) rates, base USD. LIVE near-real-time mid quotes for the 12 most-traded currencies (EUR, GBP, JPY, CHF, CAD, AUD, NZD, CNY, HKD, SGD, SEK, KRW), refreshed every minute with an honest market-open/stale flag, PLUS the official ECB daily reference table for ~30 currencies. Derive any cross-rate or pair. For agents pricing cross-border ops, treasury, invoicing and FX conversion. Keyless, pay-per-call.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.bitrefill.com/x402/invoice/pay

Pay a Bitrefill invoice in USDC via x402 to buy gift cards, eSIMs & mobile top-ups across 180+ countries.

Base crawled 0x833589fC…
1,000per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "upto",
      "maxAmountRequired": "1000000000"
    },
    {
      "amount": "1000000000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "upto",
      "maxAmountRequired": "1000000000"
    },
    {
      "amount": "1000000000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "upto",
      "maxAmountRequired": "1000000000"
    },
    {
      "amount": "1000000000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 3600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "upto",
      "maxAmountRequired": "1000000000"
    }
  ]
}
https://stableenrich.dev/api/reddit/search

Reddit Search - Search Reddit posts

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "426280207",
        "recentBlockhash": "GH3DXxYeyrrQtZUH6PmHTi7eaUcoqoS7SnenFPGrCyBv"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://base-gas-x402-production.up.railway.app/gas

Live Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0D083590c048A243e24a75E3a7C968145DE25B44",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://safetyincidents.org/api/x402/severe-injuries

Federal OSHA Severe Injury Reports (hospitalizations, amputations, eye losses), newest first. Filter by state, NAICS sector, employer name, and event date.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9F6C07e3f772eC49435579ec34E13141a94b9958",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402-data-api.onrender.com/api/geo

IP geolocation: country, region, city, coordinates, and timezone for any IPv4 or IPv6 address. Fast in-memory lookup for analytics, fraud, and personalization agents.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xdd5fcEa81CA6f1EB39FEd5B973DE794293B81ba6",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://straits.live/api/premium/brief

AI-assisted Strait of Hormuz daily situation brief as structured JSON: prose summary, bullets, and key figures, by date or latest, with archive access by date.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x1B24dEAc0951EFCD6923f684b574Fe9a4202Cf1f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.tbs-digital.com/crypto/bundle

Complete crypto and DeFi snapshot in ONE call for AI agents: spot prices for your tokens, full market data (market cap, 24h volume, supply, 24h change) for the lead token, top-10 chains by TVL, and the best yield pools by APY. Prices, market, TVL and yields together — the most complete crypto+DeFi call per request.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xd6fCE15298Fc9D60f867d9455D497177Da9BFB0a",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://evidence.regulavita.com/v1/ofac/payment-preflight

Use immediately before an autonomous agent pays an EVM wallet. Checks the destination for an exact identifier match in current official OFAC SDN and Consolidated data, then returns STOP or NO_EXACT_MATCH, freshness, and a signed-evidence upgrade path. Exact-match only; not a complete wallet-risk score, sanctions clearance, or legal advice.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9500075649a70411c81f99c4314f6cff55d12579",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.insumermodel.com/v1/attest

Signed attestation (ECDSA plus a post-quantum ML-DSA-65 companion) of on-chain wallet conditions across 39 chains: token balance, NFT ownership, EAS, Farcaster, view calls, ratio rules, and agent standing (ERC-8004 registration, ERC-7710 delegation validity with revocation proof). A verifiable boolean, never raw balances. Up to 10 conditions per pay-per-call request. Pay in USDC on Base, Polygon, Arbitrum, or Solana.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xAd982CB19aCCa2923Df8F687C0614a7700255a23",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:137",
      "payTo": "0xAd982CB19aCCa2923Df8F687C0614a7700255a23",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:42161",
      "payTo": "0xAd982CB19aCCa2923Df8F687C0614a7700255a23",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6a1mLjefhvSJX1sEX8PTnionbE9DqoYjU6F6bNkT4Ydr",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://app.suedeai.ai/create-music

AI music generation from a text prompt. Creates a complete original song with vocals, melody, and full arrangement as a finished MP3, not a loop or preview. Describe genre, mood, instrumentation, and tempo, supply your own lyrics, request an instrumental, or pin a style tag. Use for soundtracks under video, release-ready artist tracks, podcast and game themes, and demo sketches. Async: poll songId until model_version leaves 'pending'.

Base crawled 0x833589fC…
0.5per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "500000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "AI music generation from a text prompt. Creates a complete original song with vocals, melody, and full arrangement as a finished MP3, not a loop or preview. Describe genre, mood, instrumentation, and tempo, supply your own lyrics, request an instrumental, or pin a style tag. Use for soundtracks under video, release-ready artist tracks, podcast and game themes, and demo sketches. Async: poll songId until model_version leaves 'pending'.",
      "docs": "https://app.suedeai.ai/developers",
      "extra": {
        "decimals": 6,
        "name": "USD Coin",
        "priceUsd": "$0.50",
        "version": "2"
      },
      "maxAmountRequired": "500000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "body": {
            "custom_mode": false,
            "lyrics": "<lyrics>",
            "make_instrumental": false,
            "prompt": "<prompt>",
            "style": "<style>",
            "tags": "<tags>",
            "vocal_gender": "m"
          },
          "bodyType": "json",
          "discoverable": true,
          "method": "POST",
          "type": "http"
        },
        "output": {
          "shareUrl": "https://app.suedeai.ai/share/example-track"
        }
      },
      "payTo": "0x10FF767043A1723E0BB5B9207bC37D3442cC9E4F",
      "resource": "https://app.suedeai.ai/create-music",
      "scheme": "exact"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/nodes

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.aispace.bot/api/v1/audio/queue

Async music/audio-track generation on Venice (Stable Audio, ElevenLabs Music, MiniMax, Lyria, ACE-Step), paid per request in USDC on Base via x402, no API key. Short-clip model ids via GET /api/v1/models?type=music; 60s-floor ids (ACE-Step) only with ?floor=all. Lifecycle: quote,

Base crawled 0x833589fC…
0.095per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "95000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA7f3Ad0E69F61864092FAbBa6Cee00AF6e584689",
      "scheme": "exact",
      "maxAmountRequired": "95000"
    },
    {
      "amount": "95000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5hqrYCkTNe5z9Uc8o29KDNd2Gn9YreE6ZthZ7QY5hrKY",
      "scheme": "exact",
      "maxAmountRequired": "95000"
    }
  ]
}
https://api.kadec0.xyz/v1/hackernews

Hacker News feed. Top, new, and best front-page stories plus full-text story search — titles, scores, comment counts, and author for tech and startup news.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.nansen.ai/api/v1/tgm/who-bought-sold

Get "Token God Mode" (TGM) who bought/sold data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/topic-state

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://mysticapi.com/v1/sky/today

Live universal sky snapshot, no inputs: geocentric ecliptic longitudes for 13 bodies (Sun through Pluto, Chiron, lunar nodes) with zodiac sign/degree and 64-gate wheel placements, current moon phase and illumination, active retrogrades, and a 30-day almanac of upcoming stations and lunations. JPL-validated ephemeris. JSON. $0.01 USDC via x402, or API key.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x40e5A6647803c2DD686049dcDC5F9c34817D7a7F",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "PFhAMHQ6xPADiH63sjpC28RfyVChoXqgHFjbX1tkU6R",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.oblique.markets/api/v1/paid/base-block-number

Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.",
      "extra": {
        "bazaar": {
          "category": "chain-data",
          "description": "Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "base",
            "block",
            "number",
            "chain-data"
          ]
        },
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x970007590aCC5C938cd51345B17AF51B1B40D3Ab",
      "resource": "https://api.oblique.markets/api/v1/paid/base-block-number",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.",
      "extra": {
        "bazaar": {
          "category": "chain-data",
          "description": "Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "base",
            "block",
            "number",
            "chain-data"
          ]
        },
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GYyTRmt317JafPHXPnM54Fsvsma5GnS9wm6qGMqaykdS",
      "resource": "https://api.oblique.markets/api/v1/paid/base-block-number",
      "scheme": "exact"
    }
  ]
}
https://x402.twit.sh/tweets/user

Get the latest tweets (timeline) from a specific Twitter/X user by their username. Returns up to 20 tweets per page sorted by most recent first, with pagination support. Query params: username (string, required) - Twitter screen name; next_token (string, optional) - pagination cursor, e.g. GET /tweets/user?username=elonmusk. Returns X v2 API-compatible JSON.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9dBA414637c611a16BEa6f0796BFcbcBdc410df8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://macro.lonestaroracle.xyz/macro

US macro intelligence — Fed rate, CPI/Core PCE YoY, yield curve, M2 money supply, GDP, VIX, crypto Fear & Greed, AI macro regime narrative

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.bitrefill.com/x402/products/detail

Get a product's packages, pricing, and recipient requirements before creating an invoice.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://gate402.app/v1/proxy

Fetch any public URL, render client-side JS, strip nav/ads, return clean LLM-ready Markdown.

Base crawled 0x833589fc…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8E57BFDE053dBb6862991759c19affC5F383d5D0",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8E57BFDE053dBb6862991759c19affC5F383d5D0",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8E57BFDE053dBb6862991759c19affC5F383d5D0",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FtDZJuEkZAb53tSYL5uhRMa7sSx2F8EuST4b7nh5aFpd",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://agent-arcade.use.x402atlas.com/twenty-four/daily

Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://x402.dailyelo.com/v1/reliability/recent

Live reliability feed of x402 endpoints on Base: which services are up, return a valid 402 envelope, and how fast — free-probed across the CDP Bazaar catalog. A real share of listed endpoints are broken/misconfigured; poll ?since=<unix> (or ?health=healthy) to route your agent to endpoints that actually work. Objective measurement, no accusation, machine-readable.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD617a7145ca56E3ed58d639F9DEC6999B22441eE",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.aidress.ai/pay/agent_edgar_apitoll_cloud

Latest SEC EDGAR filings for any US-listed company by stock ticker or CIK: 10-K annual reports, 10-Q quarterly reports, and 8-K material events. Resolves ticker to CIK via SEC's official index and returns the parsed filing (company, form type, dated items). Sourced live from data.sec.gov.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x58BdAD5e654691aC5eD4631758f3d8DA00666B6c",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "7kPWiEbDXu33FomKG6mGa7R8HGSfUGFsAoKFZeBERJaH",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/programs

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "GET",
              "queryParams": {
                "customer_address": "0x0000000000000000000000000000000000000002",
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {},
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "programs"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/programs?method=GET — x402-gateway /programs. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {},
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/programs?method=GET",
      "scheme": "exact"
    }
  ]
}
https://stableenrich.dev/api/whitepages/person-search

Whitepages Person Search - Find people by name, phone, address

Base crawled 0x833589fC…
0.22per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "220000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
      "scheme": "exact",
      "maxAmountRequired": "220000"
    },
    {
      "amount": "220000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "425369318",
        "recentBlockhash": "9p6Mfu7bFpmEW7AFHVmbLL2sFjvZZsZqnaxjHeaMcv8W"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4",
      "scheme": "exact",
      "maxAmountRequired": "220000"
    }
  ]
}
https://dns.use.x402atlas.com/mx

DNS MX record lookup — a domain's mail servers with their hostnames and priorities as structured JSON, for email routing, deliverability diagnostics and mail-provider detection.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://defillama.use.x402atlas.com/dexs

DEX volumes by DefiLlama — all decentralized exchanges with trading-volume summaries and charts.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.anchor-x402.com/v1/roll

Verifiable RNG — cryptographically-random integer(s) signed by the treasury key. Drop-in VRF for game studios. $0.001 USDC.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "resource": "https://api.anchor-x402.com/v1/roll",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "resource": "https://api.anchor-x402.com/v1/roll"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6apuZvJQ51Led9iEjnHw6f5jfnXL4qjt8S1h58PeXzuR",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "100000000000000000",
      "asset": "0x431D5dfF03120AFA4bDf332c61A6e1766eF37BDB",
      "extra": {
        "name": "JPY Coin",
        "resource": "https://api.anchor-x402.com/v1/roll",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
      "scheme": "exact",
      "maxAmountRequired": "100000000000000000"
    }
  ]
}
https://kronossignals.com/api/v1/gex/btc

Gamma Exposure (GEX) and max-pain options tool for BTC and ETH from the Deribit public API. Returns an aggregate GEX strike ladder (dealer-convention net gamma per strike), gamma flip level (zero-cumulative-GEX strike), spot regime above or below flip, max-pain strikes for upcoming weekly and monthly expiries, an expected-move cone (ATM-IV-derived 1-sigma, front expiry), and a heuristic pin-risk score. 15-minute in-memory cache. $0.04 USDC via x402.

Base crawled 0x833589fC…
0.04per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "40000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "40000"
    }
  ]
}
https://wallet-sanctions.use.x402atlas.com/check

Wallet sanctions check for a validated EVM or Solana address. Returns a direct verdict, recommended action, match evidence, source lists, and an explicit AML-scope caveat.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://agent-paycheck.onrender.com/v1/check

Pre-payment risk and usefulness check for AI agents deciding whether to pay an x402 endpoint.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x3772E91C287B7bE00a67Cfb2A72CC5Fb5958af06",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://agentres.dev/api/book

Book a paid Resy reservation for the authenticated user using a slot config token.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x66717045858d9f598e2ebd046bf42a0b1063c0fa",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 3600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FCFgb8Z63uwim2QpDJW4TGwLqZoENjckwGosLmg26zBS",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://gateway.stride20k.com/knowledge/wiki/:title

Wikipedia summary API: the lead summary of any English Wikipedia article — title, one-line description, extract paragraph, thumbnail, canonical URL, and Wikidata item id; disambiguation pages labeled via 'kind'. Titles case-sensitive; spaces or underscores accepted. Content CC BY-SA 4.0 with attribution in meta.attribution of every response. Use for knowledge lookup, entity enrichment, and fact grounding by agents. Cached up to 24 hours.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x552Cc4A10878C7F20574489D47184249657Ca3f6",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://blockrun.ai/api/v1/pm/polymarket/events

List Polymarket events with filtering and sorting

Base crawled 0x833589fC…
0.0085per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
      "scheme": "exact",
      "maxAmountRequired": "8500"
    }
  ]
}
https://blockrun.ai/api/v1/exa/contents

Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://x402.devvizion.com/v0/outline

Research outline 0.01 USDC (first pay · Base). Ladder: free GET /v0/sample-outline.json → POST /v0/outline → brief 0.02. Machine settle: GET /first-buy.json · lander /start · /.well-known/x402.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Research outline 0.01 USDC (first pay · Base). Ladder: free GET /v0/sample-outline.json → POST /v0/outline → brief 0.02. Machine settle: GET /first-buy.json · lander /start · /.well-known/x402.",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xE79e7fa7Ce7259C46F9B127b837d2907Bb036F95",
      "resource": "https://x402.devvizion.com/v0/outline",
      "scheme": "exact"
    }
  ]
}
https://onchainpulse.theaslangroupllc.com/api/facet/honeypot

Honeypot check, half a cent: can this token actually be sold? Simulated buy+sell verdict, buy/sell/transfer tax, mint authority, ownership renounced, transfer-pausable, blacklist — the raw flags, one source, no fusion. Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, Avalanche. Cheapest token safety check before you trade; upgrade to /api/evmtoken ($0.015) for the fused CLEAR/CAUTION/AVOID verdict. Answers: is this token safe?

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "5EB66938356440C2BC179C430B0307DA",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "0.005",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "DC9C634CA6CE4BF28629589334847D66",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.005"
    },
    {
      "amount": "5000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "5000000000000000"
    }
  ]
}
https://ozmium.org/v1/risk/pairs

The tradeable Gains Network (gTrade) crypto pair universe on Base: on-chain pairIndex, symbol, and the FULL leverage band per pair- maxLeverage, minLeverage (10x on forex, 2x on metals; below it the contract reverts), and openable, which is false for the ~300 listings the venue currently refuses to open at any size. USDC-collateralized synthetic exposure- any pair trades without holding the asset. GET /v1/risk/pairs.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "builderCode": "bc_cuzowhhb",
        "discoverable": true,
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x53a05c0eed6cbf065f31aedbae7b0d8ce1a0f4db",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://agent-arcade.use.x402atlas.com/trivia/check

Trivia Daily answer check — validates one opaque choice ID and explains correct answers from the curated record.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://vape-x402.vapex402.workers.dev/data/bridges

VAPE bridges — Tracked bridges ranked by recent daily volume — bridge exploits are a top attack class, and this is the capital-flow data that category needs a source for.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8aAB9a6d28e9AbA2a15a613C90F24f352f0Cce15",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://mcp.yield.xyz/x402/yields_get_all

Discover DeFi yield opportunities across 80+ networks — 3,300+ staking, lending, vault, and RWA yields from Lido, Aave, Morpho, and more. Filter by token, network, yield type, or provider and sort by APY or TVL. Returns yield IDs (needed by every other tool) with APY, TVL, lock-up/cooldown periods, and KYC gating. Start here.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD433f056270912659f073D5FFE7Ae247e39235A5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x4ae46a509f6b1d9056937ba4500cb143933d2dc8",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x14c1cf26360F42681105A03137CF6951BdDB1293",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x14c1cf26360F42681105A03137CF6951BdDB1293",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x74b7f16337b8972027f6196a17a631ac6de26d22",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x14c1cf26360F42681105A03137CF6951BdDB1293",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.sirenic.eu/v1/recherche

French company search and company lookup by name or SIREN in the official French company registry (INSEE Sirene / INPI RNE open data). Name search returns the top 10 matches with identity, SIREN, NAF code, city and active/ceased status, plus a score_confiance (0-1 match confidence) that helps disambiguate homonyms. The entry point to official data and company data on France: resolve a trading name to its SIREN identifier before pulling the full company profile, filings or financials.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
      "extra": {
        "name": "EURC",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/offers

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "GET",
              "queryParams": {
                "customer_address": "0x0000000000000000000000000000000000000002",
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "output": {
              "example": {
                "offers": []
              },
              "schema": {
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "additionalProperties": true,
                "properties": {
                  "offers": {
                    "items": {
                      "additionalProperties": true,
                      "type": "object"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "offers"
                ],
                "type": "object"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/offers?method=GET — x402-gateway /offers. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "offers": {
                "items": {
                  "additionalProperties": true,
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "offers"
            ],
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/offers?method=GET",
      "scheme": "exact"
    }
  ]
}
https://gdelt.use.x402atlas.com/search

Global news article search by GDELT — normalized fulltext search across worldwide media (query syntax: phrases, OR, sourcecountry, theme, tone) returned as a clean snake_case envelope.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8d64A4834e262d96d1264e8900b5a4F1405b8982",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8d64A4834e262d96d1264e8900b5a4F1405b8982",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8d64A4834e262d96d1264e8900b5a4F1405b8982",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://madoromi.fun/api/agent/interpret/full

Japanese dream-interpretation agent API. Returns a Gemini-generated full interpretation from madoromi's curated dream-motif knowledge base (result schema agent-dream-insight.full.v1). Japanese output only. Dream text is never stored or logged. Async by default: the paid POST returns a job id in seconds; fetch the result with a plain free HTTP GET (no x402 client) at /api/agent/interpret/result/{job_id} (ready in ~15s). options.sync=true for one sync response (10-20s; client timeout 60s+).

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x60675cc0dA2131dfD2E8B887ebf8356b2cBD701e",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.devvizion.com/v0/bid-draft

Paste-ready bid draft (0.01 USDC cheapest). Free radar first: GET /v0/sample-radar then POST {brief}.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Paste-ready bid draft (0.01 USDC cheapest). Free radar first: GET /v0/sample-radar then POST {brief}.",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xE79e7fa7Ce7259C46F9B127b837d2907Bb036F95",
      "resource": "https://x402.devvizion.com/v0/bid-draft",
      "scheme": "exact"
    }
  ]
}
https://www.tereno.xyz/api/v1/capabilities/chain.snapshot/invoke

What is the current state of Base? Latest block number, timestamp, base fee and suggested gas fees in a single cheap call with no parameters — the fastest way to test an x402 payment loop end to end. Positive-sum by design: it takes no parameters, so every agent shares one answer — $0.02 if you are the first inside the freshness window, $0.01 for everyone after you.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xfbF218ACCBb0D57fc4E8fc3E2A885C910c4C9e94",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://instagram.use.x402atlas.com/profile/:username

Full Instagram profile by username — bio, follower and following counts, posts count, verified and business account flags, category, contact email, external and bio links, profile picture, plus the first page of recent posts and a cursor for more. Instagram profile lookup, creator and influencer stats, follower count, social audience data. No API key.

Base crawled 0x833589fC…
0.04per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "40000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "40000"
    },
    {
      "amount": "40000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "40000"
    },
    {
      "amount": "40000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "40000"
    }
  ]
}
https://vape-x402.vapex402.workers.dev/data/yields

VAPE yields — Yield pools filtered by chain/project/symbol, ranked by TVL, with apy/apyBase/ilRisk/exposure — enough to tell a real yield venue from a trap (huge APY + tiny TVL = red flag).

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8aAB9a6d28e9AbA2a15a613C90F24f352f0Cce15",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://giftpulse.theaslangroupllc.com/api/giftcard/catalog

Search Reloadly's gift card catalog (300+ brands, 14,000+ products/denominations across countries). Returns each product's id, brand, country, denomination range or fixed amounts, and sender fee/discount — everything needed to build a POST /api/giftcard/quote call.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "4FB394E34E264D1ABC18E4DA0E7719C9",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "0.01",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "929C3382C22E4291915B9EB03F6E09AD",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.01"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    }
  ]
}
https://api.robinx.io/social/follows

Pollable tape of follow/unfollow transitions by Robinhood Chain principal accounts on X — each followed handle crossed with its measured caller record

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "method": "GET",
          "properties": {
            "event": {
              "description": "follow | unfollow",
              "type": "string"
            },
            "limit": {
              "type": "integer"
            },
            "since": {
              "description": "ISO cursor from a prior call",
              "type": "string"
            },
            "watched": {
              "description": "filter to one watched principal handle",
              "type": "string"
            }
          },
          "queryParams": {
            "limit": "50"
          },
          "required": [],
          "type": "http"
        },
        "output": {
          "data": {
            "events": [
              {
                "at": "2026-07-25T06:00:00Z",
                "event": "follow",
                "followed_caller_record": {
                  "calls": 5,
                  "early_rate": 0.8
                },
                "followed_followers": 41200,
                "followed_handle": "some_account",
                "id": 1,
                "watched": "watched_principal"
              }
            ]
          }
        }
      },
      "payTo": "0xA13d363AeCCCF878Ec64f6eB687Eb4A771FB0599",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://glim.sh/api/v1/twitter/users/:ref/tweets

A user's recent tweets, ~20/page. Body: optional cursor + include_replies only

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.004per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "4000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    },
    {
      "amount": "4000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    },
    {
      "amount": "4000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    }
  ]
}
https://x402.ottoai.services/market-risk

Is anything breaking right now? Composite crypto market-stress digest: a 0-100 score (low/moderate/elevated/high) blended from GLOBAL USD-stablecoin depeg health (DefiLlama) and BASE on-chain DEX exit-liquidity, with a per-leg breakdown and an AI risk line. Covers stablecoin systemic risk + Base liquidity microstructure (NOT derivatives or sentiment). Both legs required. A read older than an hour regenerates inline. $0.002 per call.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/merchant-profile

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": true,
              "properties": {
                "business_name": {
                  "maxLength": 100,
                  "type": "string"
                },
                "category": {
                  "enum": [
                    "cafe",
                    "restaurant",
                    "retail",
                    "beauty",
                    "fitness",
                    "grocery",
                    "pharmacy",
                    "entertainment",
                    "services",
                    "education",
                    "travel",
                    "other"
                  ],
                  "type": "string"
                },
                "description": {
                  "type": "string"
                },
                "location": {
                  "type": "string"
                },
                "logo_url": {
                  "type": "string"
                },
                "use_agent_wallet": {
                  "type": "boolean"
                },
                "website": {
                  "type": "string"
                }
              },
              "required": [
                "business_name"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "merchant-profile"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "body": {
                    "type": "object"
                  },
                  "bodyType": {
                    "enum": [
                      "json",
                      "form-data",
                      "text"
                    ],
                    "type": "string"
                  },
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "POST",
                      "PUT",
                      "PATCH"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method",
                  "bodyType",
                  "body"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "json",
          "description": "HTTP POST https://api.loyalspark.online/x402-gateway/merchant-profile?method=POST — x402-gateway /merchant-profile. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "business_name": {
                "maxLength": 100,
                "type": "string"
              },
              "category": {
                "enum": [
                  "cafe",
                  "restaurant",
                  "retail",
                  "beauty",
                  "fitness",
                  "grocery",
                  "pharmacy",
                  "entertainment",
                  "services",
                  "education",
                  "travel",
                  "other"
                ],
                "type": "string"
              },
              "description": {
                "type": "string"
              },
              "location": {
                "type": "string"
              },
              "logo_url": {
                "type": "string"
              },
              "use_agent_wallet": {
                "type": "boolean"
              },
              "website": {
                "type": "string"
              }
            },
            "required": [
              "business_name"
            ],
            "type": "object"
          },
          "method": "POST",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/merchant-profile?method=POST",
      "scheme": "exact"
    }
  ]
}
https://stablefinance.dev/api/news

Recent articles. With ticker: company news. Without: market news.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xBD17480bf6ff056f7b91d9AdC9DfDa001eb7283D",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "424526157",
        "recentBlockhash": "DrtBfGN7oMWodFWgqdtCJLrcKSC3zjjcDUXBYfD9b6hb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "D6GAZpvvLe8aUi9qZEDTXPERHpP3pwAgaeucp9ib1fW",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://omniterminal.app/api/x402/v1/news/:symbol

Omni Terminal delivers fresh, deduplicated crypto AI news and market-moving events for an allowlisted symbol, with catalyst summaries, sentiment, impact, confidence, affected tickers, market context, and freshness for trading agents.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/rewards

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "GET",
              "queryParams": {
                "customer_address": "0x0000000000000000000000000000000000000002",
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "rewards"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/rewards?method=GET — x402-gateway /rewards. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/rewards?method=GET",
      "scheme": "exact"
    }
  ]
}
https://crypto.apitoll.cloud/v1/crypto/chart

Historical token price time series by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): a dated array of prices for up to 20 coins, with selectable span (number of points) and period (1d, 1h, 1w). For charting, backtesting, and trend analysis. Pairs with /v1/crypto/price for the live spot. Sourced from DefiLlama.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3dA40A9aD36640a2C0F533BAC368490095574664",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5Wxg3V6gcmFmmP6SXmGZQAUZPFYsSwoeN2Qewt5BotWz",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://aura-revenue.helionixlabs.com/x402/audit/x402-preflight

Aura deterministic x402 purchase preflight from supplied OpenAPI metadata

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x56a093255D6E0536109b5F255Fc71Bb74BfE5838",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://chain-analyzer.com/api/v1/x402/ping

Cheap connectivity-check endpoint. Verifies the full x402 settlement path (signature -> CDP facilitator -> on-chain transferWithAuthorization) for $0.01 so AI agents can validate wallet + network + facilitator wiring before committing to higher-value AML calls.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xe8e26183736D796d401Df30810207465fa708959",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4eXmvApCcE8wiEWRjoDAfN5Jpdi2UFKTJ9irswV9dkX2",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://defillama.use.x402atlas.com/historical-chain-tvl

Historical DeFi TVL across all chains from DefiLlama — aggregate time series (excludes liquid staking and double counting).

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://keystone-opportunity-api.keystone-opportunity.workers.dev/v1/opportunities

Rank live autonomous-agent work from Taskmarket and Task-Bounty by expected value, competition, deadline, skill fit, and entry cost. Call before picking which task to attempt.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD3faD775704a0Ed209315A406c3D99ED589ee723",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://racingpulse.theaslangroupllc.com/api/going

Live ground and going conditions for 35 global racecourses. For horse-racing betting agents.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "2C69DD6D9CF241FFA094B6824FBD233E",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "0.02",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "0886624CE76B452A97715FE4C8F9E7CE",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.02"
    },
    {
      "amount": "20000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000000000000000"
    }
  ]
}
https://citepulse.theaslangroupllc.com/api/institution

Institution research-output benchmark for grant offices, research-strategy agents, and comparison shopping — works count, total citations, h-index/i10-index, a 10-year output/citation trend, and topic-strength breakdown (OpenAlex). Optionally benchmark two institutions side by side.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "55AA24C195B545C4B7155011FCDFAD90",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "0.02",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "BF1E077D7CE04267B5691D2CFFE242D2",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.02"
    },
    {
      "amount": "20000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000000000000000"
    }
  ]
}
https://stablecoinpulse.theaslangroupllc.com/api/depeg-tick

Stablecoin peg tick — USDT, USDC, USDS, DAI, USDe, USD1 in ONE $0.01 call: live price, deviation from $1, 24h change, and a deterministic STABLE / WATCH / ALERT verdict per coin. Built for monitoring loops: call it every cycle, escalate to /api/depeg-watch for the single-coin deep read when a verdict is not STABLE. 60s freshness, cited to CoinGecko, no LLM in the path.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "5068DCC7E5674DC4A777C9DAE761EEE2",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "0.01",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "3DB039C1D8B24129AF9DC09FF5E383E5",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.01"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    }
  ]
}
https://wallets-demo-seller-server.calebgcarithers.workers.dev/weather

Real-time current weather conditions for a city or location, including temperature, humidity, precipitation, wind, and a human-readable condition.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0xCBd4E4218B2Cd8300f1bd07b9B4B720fAb6B51B3",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.agentservices.to/v1/fx

Real-time FX/forex rates for 30+ currencies

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extensions": {
        "bazaar": {
          "description": "Real-time FX/forex rates for 30+ currencies",
          "info": {
            "input": {
              "method": "GET",
              "type": "http"
            },
            "output": {
              "example": {
                "EUR/GBP": 0.86,
                "USD/EUR": 0.92,
                "USD/GBP": 0.79,
                "USD/JPY": 149.5
              },
              "type": "json"
            },
            "routeTemplate": "/v1/fx"
          },
          "name": "AgentServices",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "method": {
                    "enum": [
                      "DELETE",
                      "GET",
                      "HEAD"
                    ],
                    "type": "string"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {
                    "type": "object"
                  },
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              },
              "routeTemplate": {
                "type": "string"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        }
      },
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9863aB6242663FCc84c33632741711dB78f8Fd15",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://apiacre.com/v1/crypto/base-network-status

Read the latest Base mainnet block and a bounded EIP-1559 fee history in one RPC batch, including gas utilization and priority-fee percentile samples.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xa0BFa4f07281c9b248DC3AED2217836BcA24869B",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "B4CHWQeQn7GDLZD2aW6hpGG2bEseisBFLZYECA3HDLan",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.nansen.ai/api/v1/smart-money/netflow

Get Smart Money Netflow Data

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://vibesprings.net/api/price/sol-usd

Real-time SOL/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x38C063312719220c676E988f0DEE14B4ec0e44C8",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://x402.ottoai.services/equity-news

Latest company news for a vendor-resolved equity: licensed Finnhub headlines from the trailing seven days with publication time, source, and summary. Only articles that name the company are served — labelled `primary` when the headline names it, `mentioned` when only the summary does — so a symbol-tagged story about another company never fills the list. Redirect URLs withheld; no sentiment is fabricated.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://equity.lonestaroracle.xyz/equity

Stock analysis — price fundamentals technical indicators for any ticker

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://agent.kihustle.tech/services/json-schema-repair/jobs

Deterministic JSON repair for agent tool outputs, with optional JSON Schema validation. Built for tight agent loops at micropayment prices.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "jobId": "job_248e0af1e61a4731b09d7dbe216c63b9",
        "name": "USD Coin",
        "priceUsdc": "0.01",
        "serviceId": "json-schema-repair",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x1c8b3C34Dca2Ba2A71598f1F9E0BC2a04A0Bea36",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://palmyr.ai/phone/numbers

List all phone numbers owned by or shared with the calling wallet.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extensions": {
        "bazaar": {
          "category": "communications",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "phone",
            "list"
          ]
        }
      },
      "extra": {
        "facilitator": "https://palmyr.ai/x402",
        "feePayer": "4R67MWivvc52g9BSzQRvQyD8GshttW1QLbnj46usBrcQ",
        "name": "Palmyr"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GqSs5L9aPWGJwyRQe35YKQaWMDPh3R1dMqfSEPhSgkM",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extensions": {
        "bazaar": {
          "category": "communications",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "phone",
            "list"
          ]
        }
      },
      "extra": {
        "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x79e999e2f9d5417F2803f1d88602aB1EA4323881",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://alpha402x.com/10q-highlights/AAPL

Verbatim, line-cited extraction of the material quantitative sentences from any U.S. company's SEC 10-Q (debt, buybacks, acquisitions, litigation). Extractive, not generative. Any ticker.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x73AcE32013985f715B5e00E5A341259cCE17D220",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://arbipulse.theaslangroupllc.com/api/fx-premium

Stablecoin parallel-rate premium — how far the street price of a digital dollar (per-venue USDT quotes) diverges from the official FX rate in capital-controlled economies: venue table, median street rate, premium %, signal read. ARS, VES, BRL, COP, PEN, MXN, CLP, BOB; ARS includes the blue/MEP/CCL board. Live quotes, no LLM.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "FA41D6843E2446419E5615B0982BFBDB",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "0.02",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "47A62C4D3CD14399B420C1C8A4B2CD23",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.02"
    },
    {
      "amount": "20000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000000000000000"
    }
  ]
}
https://api.robinx.io/agent/features

Token-level feature row for one Robinhood Chain token: launch facts, current activity/deployer/price/caller state, and the observed mention record — inputs for your own model (no score, no recommendation)

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "method": "GET",
          "properties": {
            "token": {
              "description": "Robinhood Chain token address (0x…40 hex) — required",
              "type": "string"
            }
          },
          "queryParams": {
            "token": "0x020bfC650A365f8BB26819deAAbF3E21291018b4"
          },
          "required": [
            "token"
          ],
          "type": "http"
        },
        "output": {
          "data": {
            "chain": "robinhood-4663",
            "coverage": {
              "chain": "4663 only"
            },
            "current_state": {
              "activity": {
                "is_real": true,
                "measured": true,
                "swaps": 84864,
                "traders": 10808,
                "weth_vol": 69121.878
              },
              "caller_state": {
                "available": true,
                "best_caller_early_rate": 0.8,
                "measured_caller_count": 62
              },
              "deployer_record": {
                "available": true,
                "launched": 9,
                "score": 68
              },
              "history": "none - recomputed in place",
              "price": {
                "fdv_weth": 25023.24,
                "last_px_weth": 0.0000250232,
                "stale": false
              },
              "structure": {
                "available": false
              }
            },
            "identity": {
              "first_observed_at": "2026-07-12T09:14:00Z",
              "launch_block": 88836,
              "symbol": "CASHCAT"
            },
            "known": true,
            "observed": {
              "clock": "captured_at - immutable",
              "mentions": {
                "available": true,
                "total": 867
              }
            },
            "point_in_time": false,
            "token": "0x020bfC650A365f8BB26819deAAbF3E21291018b4"
          }
        }
      },
      "payTo": "0xA13d363AeCCCF878Ec64f6eB687Eb4A771FB0599",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://minifetch.com/api/v1/x402/extract/url-metadata

For technical SEO & metadata indexing: Extracts rich structured metadata from your URL (favicons, title, description, canonical, meta tags, Open Graph, Twitter Card, JSON-LD, redirects, headers, performance, headings, images). Returns all by default; query param narrows response (pass atomic field names, ex: ?fields=title,description or named groups: network,meta,og,twitter). ?omitEmpty=true trims tokens for AI agents. Supports GET & POST

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xffA9155A0e4B3d8d42351Da226cC1feEe449686f",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "46vMcwuC4sK11sB3gkLhyA7J7GEwfkhn5rFyDtihBwqe",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://lionx402.com/api/x402/company-research

Company research / org enrich / firmographics for AI agents. KYB vendor intel by domain or name: employees, country, industry, website, domain trust. $0.03 keyless Base USDC. Use before people enrichment. ?q=stripe.com

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://api.robinx.io/callers

Proven X caller-lift leaderboard

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "method": "GET",
          "properties": {
            "chain": {
              "description": "omit for Robinhood Chain; solana|base for cross-chain mirrors",
              "type": "string"
            }
          },
          "required": [],
          "type": "http"
        },
        "output": {
          "data": {
            "callers": [
              {
                "account": "example_caller",
                "calls": 5,
                "coordinated": false,
                "early_rate": 0.8,
                "med_1h": 0.17
              }
            ]
          }
        }
      },
      "payTo": "0xA13d363AeCCCF878Ec64f6eB687Eb4A771FB0599",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://glim.sh/api/v1/github/get

Fetch GitHub data from a ref (repo + README, files, commits, PRs, issues, discussions)

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://animica.dev/x402/qrng/draw

Random bytes from the Animica node's randomness service with a signed digest attestation and an entropy-health report, 1..1024 bytes per draw. Current trust model, stated up front and in every response: the entropy source is a software CSPRNG (os.urandom) and the signer is a software key, so source.is_quantum=false and attestation.attested=false today; those fields flip truthfully if a hardware/quantum provider is ever connected. The free catalog entry carries the same live entropy block, so you can check the source before paying.

Base crawled 0x833589fC…
0.001786per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1786",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "decimals": 6,
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
      "scheme": "exact",
      "maxAmountRequired": "1786"
    },
    {
      "amount": "31583913197",
      "asset": "ANM",
      "extra": {
        "chain_id": 1,
        "decimals": 9,
        "discount_percent": 25,
        "genesis_hash": "0xa0892158cf997c56e91d0aa12e60c36037dae34800a2b54111a8fa17ec88b7de",
        "how_to_pay": "Sign a TRANSFER of at least `amount` nANM to payTo on Animica (chainId 1) and send the signed raw transaction as payload.rawTransaction. You pay the chain fee; we submit it. Because we sponsor no gas on this lane, it is priced 25% below the USDC price.",
        "native": true,
        "price_display": "31.583913197 ANM",
        "rate_observed_at": "2026-09-15T07:21:26.000Z",
        "rate_side": "bid",
        "rate_source": "nonkyc",
        "rate_usd_per_anm": "0.000042395",
        "unit": "nANM",
        "usd_equivalent": "0.001339",
        "usd_list_price": "0.001786"
      },
      "maxTimeoutSeconds": 60,
      "network": "animica:1",
      "payTo": "anim1zqpsmegc0qcvzjfukm89xs0zeu3eqyyyel7kelehuszvwfarqypky2gr946ga",
      "scheme": "exact",
      "maxAmountRequired": "31583913197"
    }
  ]
}
https://api.oblique.markets/api/v1/paid/base-gas-price

Use when an agent needs base gas price. Returns Current Base gas price: fetch EIP-1559 latest-block base fee and gas price in wei and gwei from redundant public RPCs, with block freshness metadata for transaction planning. $0.002.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Use when an agent needs base gas price. Returns Current Base gas price: fetch EIP-1559 latest-block base fee and gas price in wei and gwei from redundant public RPCs, with block freshness metadata for transaction planning. $0.002.",
      "extra": {
        "bazaar": {
          "category": "chain-data",
          "description": "Use when an agent needs base gas price. Returns Current Base gas price: fetch EIP-1559 latest-block base fee and gas price in wei and gwei from redundant public RPCs, with block freshness metadata for transaction planning. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "base",
            "gas",
            "price",
            "chain-data"
          ]
        },
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x970007590aCC5C938cd51345B17AF51B1B40D3Ab",
      "resource": "https://api.oblique.markets/api/v1/paid/base-gas-price",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Use when an agent needs base gas price. Returns Current Base gas price: fetch EIP-1559 latest-block base fee and gas price in wei and gwei from redundant public RPCs, with block freshness metadata for transaction planning. $0.002.",
      "extra": {
        "bazaar": {
          "category": "chain-data",
          "description": "Use when an agent needs base gas price. Returns Current Base gas price: fetch EIP-1559 latest-block base fee and gas price in wei and gwei from redundant public RPCs, with block freshness metadata for transaction planning. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "base",
            "gas",
            "price",
            "chain-data"
          ]
        },
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GYyTRmt317JafPHXPnM54Fsvsma5GnS9wm6qGMqaykdS",
      "resource": "https://api.oblique.markets/api/v1/paid/base-gas-price",
      "scheme": "exact"
    }
  ]
}
https://pro-api.coinmarketcap.com/x402/v1/dex/search

Search for DEX tokens by keyword (name, symbol, or contract address).

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2",
        "x402PaymentConfigId": "699dbab79f32ffde650104aa"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:8453",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "69ef242f50455dcce02f4530"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "69ef242e50455dcce02f3061"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1",
        "x402PaymentConfigId": "69ef242e50455dcce02f2e77"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "6a0c0019f37d0e2f6c9a3610"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1",
        "x402PaymentConfigId": "6a0c0062f37d0e2f6c9a3612"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1",
        "x402PaymentConfigId": "69ef242f50455dcce02f3c2f"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:56",
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    }
  ]
}
https://api.agentstools.dev/search

Free-text web search for AI agents: ranked title/url/snippet results fused across multiple engines (Brave, Google, DuckDuckGo, Mojeek, Startpage, Yahoo), with freshness filters (past day/week/month/year), region/locale and SafeSearch. One call for grounded, up-to-date web results — no keys, no scraping setup.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://store.agentexchange.work/crypto/prices

Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, bitcoin, or base:0x…): current spot price, token symbol, decimals, and a confidence score, for up to 50 coins in one call. Pass ?at=<unix> for the historical price at a point in time. Sourced from DefiLlama across every major chain. Also accepts legacy ?ids=bitcoin,ethereum.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "2147pBT4LxoszjvLeGRxyVzpRnMi986VH3FAoprSs8Ez",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://readx.sh/api/:name

A user's timeline: tweets, retweets and quotes. Example: GET /api/jack

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x13E060ADcc6F4b731Da8382B333027B8B2bfF707",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "CHHWRYyo8exGvcLGn3AxzHEZseLZDTnq3FaYkzZVQDQr",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://cpi-report-us.underscoredone.com/cpi

Gives you official United States inflation numbers from the government's BLS Consumer Price Index. Ask for the newest reading, a specific month in the past, or a whole range of months, and get back clear percentages for overall inflation and 'core' inflation (which ignores food and energy prices), plus a plain-English summary sentence.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.ottoai.services/tokenized-equities

Live registry of tokenized US equities & ETFs on Robinhood Chain (4663): symbol, pin-verified token address, decimals, routability, the EXECUTABLE buy price per token ($100 at route min output) vs the catalog reference price + deviation. Not a data-coverage claim. Informational only. Hourly.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.linkedpanda.com/agent/v1/profiles/enrich

LinkedIn profile enrichment API for one B2B lead

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xe740D5701749D262dA5E4Fcb9f814c5B6D91Cf46",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.bitrefill.com/x402/invoice/create

Create a price-locked USDC invoice for one or more gift cards, eSIMs, or mobile top-ups.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://x402.ottoai.services/filtered-news

AI-filtered crypto news and Twitter search for non-token topics (airdrops, DeFi trends, etc). Max 2 words.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.ottoai.services/pools-trending

Trending DEX pools right now — Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism, Avalanche, or network=all for cross-chain across those same 8. Top 10 hottest pools ranked by GeckoTerminal 24h trending: pool address, DEX, price USD, 24h price change, 24h volume, liquidity (TVL), FDV, 24h txns as flat JSON numbers. Trending pools, hot pools, top movers, momentum screener, what is pumping. $0.001 per call.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.ottoai.services/rh-season

Robinhood Chain memecoin intelligence: rug-screened RH Chain (4663) movers. Hard liquidity + wash-volume gates filter $0-liquidity honeypots faking $1M volumes; survivors carry rug-risk flags (thin liquidity, vol/liquidity anomaly, pool age, CoinGecko listing) plus trusted-KOL mentions with verbatim quotes and a synthesized RH sentiment read. Served from a cached snapshot while fresh (≤1h) and regenerated on demand when a read finds it stale.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://hyperliquid.use.x402atlas.com/mids

Current mid price for every Hyperliquid asset (perps + spot) in one call — a fast whole-venue price snapshot.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://metals.lonestaroracle.xyz/report

Industrial metals prices with momentum signals, category analysis, and AI brief

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://agentpay.tools/tools/verified_route/call

Buyer-side trust oracle for the x402 marketplace: 'I need X, budget $Y — which tool is real?' Sweeps the WHOLE catalog across many queries, collapses sybil/factory clusters (one wallet stamping many fake-distinct listings), ranks the genuinely-used survivors by unique-payer usage, and returns one vetted pick with a ready-to-pay challenge. The credit-bureau check an agent can't do in a single query.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Paid buyer-side trust oracle: 'I need X, budget $Y — which x402 tool is real?' Sweeps the WHOLE x402 marketplace across many queries (a single search shows only a slice), collapses sybil/factory clusters (one wallet stamping many fake-distinct listings → one entry), ranks the genuinely-used survivors by real unique-payer usage, and returns ONE vetted recommendation with a ready-to-pay x402 challenge. The credit-bureau check an agent cannot do itself in one query — pay $0.01 to avoid paying a scam or a dead stub.",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "errors": [
          {
            "body": {
              "error": "<summary>",
              "reason": "<machine-readable reason>"
            },
            "retry": "Re-request the challenge and pay again",
            "status": 402,
            "when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)"
          },
          {
            "body": {
              "detail": [
                {
                  "loc": [
                    "body"
                  ],
                  "msg": "<what is wrong>",
                  "type": "<error type>"
                }
              ]
            },
            "retry": "Fix the body and retry with a fresh payment",
            "status": 422,
            "when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422"
          },
          {
            "body": {
              "detail": "Tool '<name>' not found"
            },
            "status": 404,
            "when": "Unknown tool name"
          },
          {
            "body": {
              "error": "Rate limit exceeded"
            },
            "retry": "Back off and retry after a minute",
            "status": 429,
            "when": "Rate limited (per-IP and per-wallet limits)"
          },
          {
            "body": {
              "error": "Tool execution failed",
              "payment_status": "refund_pending",
              "tool": "<name>"
            },
            "status": 500,
            "when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call"
          },
          {
            "body": {
              "detail": "<what is unavailable>"
            },
            "retry": "Retry shortly",
            "status": 503,
            "when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)"
          }
        ],
        "input": {
          "properties": {
            "budget_usd": {
              "default": 1,
              "description": "Max USDC the agent will pay the downstream tool per call",
              "type": "number"
            },
            "chain": {
              "default": "",
              "description": "Optional chain filter: 'base', 'arbitrum', 'arbitrum-stack'. Empty = all chains.",
              "type": "string"
            },
            "need": {
              "description": "What the agent needs, e.g. 'dex pair liquidity', 'crypto prices'",
              "type": "string"
            }
          },
          "required": [
            "need"
          ],
          "type": "object"
        },
        "output": {
          "budget_usd": "1",
          "catalog": {
            "after_vetting": 114,
            "biggest_factory": {
              "listings": 72,
              "pay_to": "0x2bb72231eed3"
            },
            "real_providers": 41,
            "scanned": 117,
            "sybil_collapsed": 73,
            "unique_wallets": 38
          },
          "chain": null,
          "need": "dex pair liquidity",
          "recommendation": {
            "calls30d": 3246,
            "flags": [],
            "name": "Otto AI",
            "network": "eip155:8453",
            "pay_to": "0x0e84ddedaae6a7",
            "payers30d": 200,
            "price_usd": "0.001",
            "quality": 3851,
            "ready_to_pay": {
              "accepts": {
                "network": "eip155:8453",
                "scheme": "exact"
              },
              "network": "eip155:8453",
              "price_usd": "0.001",
              "url": "https://otto.example/dex"
            },
            "url": "https://otto.example/dex"
          },
          "survivors": [],
          "vetting": "swept 17 queries → 117 listings → collapsed 73 sybil listings → 41 real providers"
        }
      },
      "payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
      "resource": "https://agentpay.tools/tools/verified_route/call",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://reddit.apitoll.cloud/v1/reddit/search

Reddit search scraper — keyword-search all of Reddit, or scope to one subreddit, for AI agents. Find posts matching any query, sorted by relevance, top, new, hot, or comments, with an optional time window. Returns each post’s title, author, subreddit, score, comment count, permalink, external link + domain, flair, and timestamp. No login, no API key. Track brand mentions, monitor topics, and surface Reddit discussion for agents.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 150,
      "network": "eip155:8453",
      "payTo": "0x667cc5A90ffA911279a5FBE377c1018DDF45373B",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 150,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8ce9pCUe913hpaP4oheeMPJt2uRkWAq5FsuNU6zSvTkw",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://onchainpulse.theaslangroupllc.com/api/evmtoken

Honeypot, rug & token-safety scanner for Robinhood Chain, Base & EVM tokens — instant pre-trade check: sell-simulation honeypot, buy/sell tax, mint, upgradeable proxy, pausable transfers, blacklist, owner privileges, LP lock/burn, holder concentration, fused with live liquidity & flow into one CLEAR / CAUTION / AVOID verdict. Robinhood Chain (launchpad tokens incl. Pons), Base, Ethereum, BSC + 4 more. Answers: is this token safe to buy?

Base crawled 0x833589fC…
0.015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "33282D7CDE5B4407A5077CE28DE3D241",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "0.015",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "9549BABBB9704643B33F39C54E940CE6",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.015"
    },
    {
      "amount": "15000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "15000000000000000"
    }
  ]
}
https://blockrun.ai/api/v1/exa/answer

Get an AI-generated answer to a question grounded in live web search results.

Base crawled 0x833589fC…
0.011per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "11000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
      "scheme": "exact",
      "maxAmountRequired": "11000"
    }
  ]
}
https://api.kadec0.xyz/v1/weather

Weather forecast and air quality for any location worldwide. Returns current conditions plus a 16-day daily weather forecast - temperature highs and lows, precipitation, and wind - alongside air-quality readings including AQI, PM2.5, PM10, and ozone, for any latitude and longitude. Daily forecast resolution. Keyless, via Open-Meteo.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://x402.payperbyte.io/feeds/weather

NWS weather forecasts for 5 US cities (NYC, LA, Chicago, Houston, Miami)

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xffFf4B8Da8C165B556326453446F6940C8AFE0DB",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://supply.lonestaroracle.xyz/report

Full supply chain report — shipping rates, BLS PPI, NY Fed GSCPI, AI summary

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://holidays.use.x402atlas.com/add-business-days

Add business days while skipping weekends and full-day Public or Bank holidays; Optional and HalfDay observances are retained.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.aidress.ai/pay/agent_api_dev_v2_ixs_finance

IXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE341Add833F9d62082e97eA260BAA6546Cd09F73",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.aispace.bot/api/v1/crypto/rpc/base-mainnet

Pay-per-call JSON-RPC proxy to 20+ EVM and Starknet networks on Venice, paid per request in USDC on Base via x402, no API key. Resolve the {network} path segment from GET /api/v1/crypto/rpc/networks.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA7f3Ad0E69F61864092FAbBa6Cee00AF6e584689",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5hqrYCkTNe5z9Uc8o29KDNd2Gn9YreE6ZthZ7QY5hrKY",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.nansen.ai/api/v1/profiler/address/related-wallets

Get Address Related Wallets Data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://netintel.dev/web/extract

Extract article / main content from any URL or PDF to clean, LLM-ready Markdown (web scraper / reader / html-to-markdown) — strips scripts, nav, ads, and boilerplate while preserving headings, links, lists, tables, code blocks, and blockquotes; extracts the text layer from PDFs. Returns Markdown body, title, word count, and a quality grade. For JS-rendered or bot-walled pages a plain fetch can't read, use /exa/contents.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8FVeybWnB4dYrxTuPK7WzFZNAiEcFVaDLFnKpRwVGr5s",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://regimeshift.xyz/api/v1/asset/btc/vrp

BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy-vol. Response includes regime classification (LOW/MID/HIGH), raw inputs for audit (DVOL, RV_72h, RV_6h, spot), timestamp, and open methodology URL.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x82B17D0bb4De9ae6c3491257B60E8245e70acd7B",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.ottoai.services/pm-crypto

Crypto prediction markets on Polymarket: the highest-volume open BTC, ETH and crypto markets with live odds (outcome probabilities), best bid/ask, spread, 24h + total volume, liquidity, price change and end date. "Bitcoin above X", price targets, ETF and protocol events — what the prediction market ACTUALLY prices in, as flat JSON refreshed every 5 minutes. Crypto odds, Bitcoin prediction market, ETH probability. $0.001 per call.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.kadec0.xyz/v1/website-audit

Instant website SEO audit. On-page SEO, performance, and accessibility snapshot for any URL — title, meta tags, headings, links, image alt, load time, and an issues list with score.

Base crawled 0x833589fC…
0.08per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "80000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "80000"
    }
  ]
}
https://perpsignals.use.x402atlas.com/fear-greed

Crypto Fear & Greed index — the current market-sentiment score (0-100) and its label (Extreme Fear … Extreme Greed), as a clean snake_case envelope.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x82096bF08d81c14C678E915A04Fcf150958eE571",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x82096bF08d81c14C678E915A04Fcf150958eE571",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x82096bF08d81c14C678E915A04Fcf150958eE571",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://palmyr.ai/social/twitter/registered/mine

List registered X accounts your wallet owns or has shared access to.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "twitter",
            "x",
            "registered",
            "mine"
          ]
        }
      },
      "extra": {
        "facilitator": "https://palmyr.ai/x402",
        "feePayer": "4R67MWivvc52g9BSzQRvQyD8GshttW1QLbnj46usBrcQ",
        "name": "Palmyr"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GqSs5L9aPWGJwyRQe35YKQaWMDPh3R1dMqfSEPhSgkM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "twitter",
            "x",
            "registered",
            "mine"
          ]
        }
      },
      "extra": {
        "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x79e999e2f9d5417F2803f1d88602aB1EA4323881",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://proxy.aproxpay.com/v1/proxy

Residential proxy fetch (up to 2MB). Returns HTTP 200 with the target body; read X-Target-Status for the origin status. Billed for the forwarded request, not for a 2xx origin response. For larger responses use /v1/proxy/large; at >17 requests a session pass is cheaper.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "legal": {
          "acceptance": "Signing and transmitting an x402 payment authorization after receiving payment requirements that reference these documents constitutes acceptance of the referenced Terms of Service revision.",
          "manifestUrl": "https://aproxpay.com/legal/manifest.json",
          "policies": {
            "aup": "https://aproxpay.com/aup",
            "privacy": "https://aproxpay.com/privacy",
            "refunds": "https://aproxpay.com/refunds"
          },
          "termsArchiveUrl": "https://aproxpay.com/legal/terms-of-service/1.2",
          "termsHash": "sha256:5d916de11ae512929749aa1d37574adb9b3890c70cf54cf48d0b252a467d99a8",
          "termsRevision": "1.2",
          "termsUrl": "https://aproxpay.com/terms"
        },
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xcE48d4C2914C9E22A920883622cC04b1f6a5856c",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://x402.dailyelo.com/v1/threats/recent

Live feed of freshly-detected malicious addresses on Base — address-poisoning seeders caught via zero-value transfer sprays, updated continuously by our on-chain collector. Poll ?since=<unix> to ingest only new threats into your agent's blocklist. Deterministic, evidence-backed, machine-readable.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD617a7145ca56E3ed58d639F9DEC6999B22441eE",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://hyperliquid-accounts.use.x402atlas.com/state

A Hyperliquid account's perpetuals state — open positions, margin summary and withdrawable balance, for any 0x address.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://vape-x402.vapex402.workers.dev/data/dex_volumes

VAPE dex_volumes — DEX trading volume on a chain by venue, each with its logo (default Base) — real trading activity across the chain's exchanges.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8aAB9a6d28e9AbA2a15a613C90F24f352f0Cce15",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://lionx402.com/api/x402/web-search-json

Keyless attested web search (?q=) for agent grounding. $0.025 Base USDC — agent-search band. Ed25519-attested result set.

Base crawled 0x833589fC…
0.025per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "25000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "25000"
    }
  ]
}
https://insider.lonestaroracle.xyz/trades

Insider trades — SEC Form 4 buys and sells by officers and directors for any ticker

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0xeF2a4B6756895aAf1374640dcFCD4947959442ab",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://agent-arcade.use.x402atlas.com/twenty-four/check

Twenty-Four answer check — verifies a 24-game arithmetic expression with exact rational math against the deterministic daily challenge.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://palmyr.ai/social/twitter/pool/mine

List pool-bought X accounts your wallet owns or has shared access to.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "twitter",
            "x",
            "pool",
            "mine"
          ]
        }
      },
      "extra": {
        "facilitator": "https://palmyr.ai/x402",
        "feePayer": "4R67MWivvc52g9BSzQRvQyD8GshttW1QLbnj46usBrcQ",
        "name": "Palmyr"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GqSs5L9aPWGJwyRQe35YKQaWMDPh3R1dMqfSEPhSgkM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "twitter",
            "x",
            "pool",
            "mine"
          ]
        }
      },
      "extra": {
        "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x79e999e2f9d5417F2803f1d88602aB1EA4323881",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://screenshots.underscoredone.com/capture

Renders a webpage exactly as a real browser would, including all its scripts and dynamic content, then takes a picture of it. You can capture just the visible area or the whole scrollable page, choose the screen size, wait for slow-loading images to finish, and hide cookie banners or popups before the picture is taken.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://kronossignals.com/api/v1/forecast/doge

Dogecoin (DOGE) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, cached ~20 min — switched from composite 2026-07-10. Measured on predictions actually served: 62% directional over 3,300+ scored DOGE forecasts — above our ~54% all-asset headline; verify per-asset at /api/stats (beta_accuracy). Falls back to the composite heuristic if the cache is briefly stale. Pay-per-call via x402 on Base USDC. Live scored track record at /api/stats — not a backtest.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://glim.sh/api/v1/reddit/search

Search Reddit posts

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.oblique.markets/api/v1/paid/bazaar-price-stats

Use when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Use when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.",
      "extra": {
        "bazaar": {
          "category": "market-data",
          "description": "Use when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "bazaar",
            "price",
            "stats",
            "market-data"
          ]
        },
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x970007590aCC5C938cd51345B17AF51B1B40D3Ab",
      "resource": "https://api.oblique.markets/api/v1/paid/bazaar-price-stats",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Use when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.",
      "extra": {
        "bazaar": {
          "category": "market-data",
          "description": "Use when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "bazaar",
            "price",
            "stats",
            "market-data"
          ]
        },
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GYyTRmt317JafPHXPnM54Fsvsma5GnS9wm6qGMqaykdS",
      "resource": "https://api.oblique.markets/api/v1/paid/bazaar-price-stats",
      "scheme": "exact"
    }
  ]
}
https://x402.twit.sh/users/by/username

Look up a Twitter/X user profile by their screen name. Returns full profile data including id, name, username, bio, follower count, following count, tweet count, verification status, and profile image URL. Query param: username (string, required) - Twitter screen name without @, e.g. GET /users/by/username?username=elonmusk. Returns X v2 API-compatible JSON.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9dBA414637c611a16BEa6f0796BFcbcBdc410df8",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://app.heinrichstech.com/v1/cdp/echo

BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xDa2F35d283c42dd60B965322394bc658a5c1769F",
      "resource": "https://app.heinrichstech.com/v1/cdp/echo",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "EDtPHNFA6ofGQZPb8NYUxdTkqVwCfkWJzRCg8vQXkYBL",
      "resource": "https://app.heinrichstech.com/v1/cdp/echo",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "0.001000",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "cbb3b815-226e-427f-9df1-f9d47c45ca94",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 120,
      "network": "xrpl:0",
      "payTo": "rfryheo6yzFdLWj8qUQtZc7zG9MKkBkUEy",
      "resource": "https://app.heinrichstech.com/v1/cdp/echo",
      "scheme": "exact",
      "maxAmountRequired": "0.001000"
    },
    {
      "amount": "0.001000",
      "asset": "5553444300000000000000000000000000000000",
      "extra": {
        "invoiceId": "a566a2c7-d37b-4dee-9c93-d4b22291db03",
        "issuer": "rGm7WCVp9gb4jZHWTEtGUr4dd74z2XuWhE",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 120,
      "network": "xrpl:0",
      "payTo": "rfryheo6yzFdLWj8qUQtZc7zG9MKkBkUEy",
      "resource": "https://app.heinrichstech.com/v1/cdp/echo",
      "scheme": "exact",
      "maxAmountRequired": "0.001000"
    },
    {
      "amount": "10000",
      "asset": "USDC",
      "extra": {
        "currency": "USDC",
        "issuer": "GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN"
      },
      "maxTimeoutSeconds": 120,
      "network": "stellar:pubnet",
      "payTo": "GCB5WZT5VCBBATGMQMTB6TLUXD6KQC6N5ITRWK3CCP4J3YOCE45FA2GO",
      "resource": "https://app.heinrichstech.com/v1/cdp/echo",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.payperbyte.io/feeds/earthquakes

USGS recent earthquakes worldwide (M2.5+)

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xffFf4B8Da8C165B556326453446F6940C8AFE0DB",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://api.remix.live/mcp/x402-http/compile

Compile Solidity contracts with the Remix compiler, supporting multiple files, custom versions, and optimization settings

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4CF33cCB14B43D76b4f672C3feDe297d1d763ace",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://dns.use.x402atlas.com/a

DNS A record lookup — resolve any hostname or domain to its IPv4 addresses, returned as a clean JSON list. For host resolution, connectivity and uptime checks, IP-reputation enrichment and infrastructure mapping.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.n0brains.com/x402/rotation

Crypto market rotation and altseason regime detector: sector/asset rotation score, breadth, relative strength, and which coins are rotating in vs out. Tells an agent whether capital is flowing to BTC, ETH, or alts right now. Not financial advice.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xc1793B8AA0D25193117EF025f145994e1c02011F",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://token-risk.com/v1/scan

Deterministic on-chain structural risk report for an ERC-20 token on Base. Keyless x402-native payment — no signup, no API key. Reports STRUCTURAL risk, not reputation: centralized-control powers (mint/pause/blacklist) are flagged regardless of issuer. Score 0-100, higher = structurally safer. See free real samples before paying: GET /samples/index.json

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x332DbF15a8Bcca8eEB4390b380202360F4f45401",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://hyperliquid.use.x402atlas.com/predicted-funding

Predicted next funding rates per asset across venues (Hyperliquid vs CEX perps) — cross-venue carry, de-positioned from Hyperliquid's nested arrays.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x383190a4F26F075Fc2c73F6738eAbf4Dc6F33442",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://appstore.use.x402atlas.com/reviews

Apple App Store reviews — pull an app's user reviews by numeric product_id: title, text, rating, version, author & date, with paging & sort, as clean JSON.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://hotels.use.x402atlas.com/search

Hotel search — find hotels & vacation rentals anywhere by destination with live nightly rates, star class, guest ratings, amenities, photos & coordinates as clean JSON.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://tooloracle.io/v2/macro_snapshot

AgentNOMOS Macroeconomic Indicator Snapshot: six US macro feeds in one call — Fed funds rate with next FOMC date, CPI and PCE inflation with deviation from the Fed target, nonfarm payrolls and unemployment, GDP with annualized growth, Treasury 2Y/10Y yields with curve status and 30Y mortgage rate, and consumer sentiment. Sourced from FRED (Fed, BLS, BEA, US Treasury, U. Michigan). Cached, not real-time. Raw values only: no forecast, no trading signal.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x11f591C3496C0632e7B173184f5Bc71dC941125D",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.jmthomasofficial.com/v2/api/edgar-company-lookup

Company intelligence lookup: resolve a US-listed company ticker through the SEC EDGAR company ticker dataset. Returns CIK, ticker, and registrant name for company research, SEC filing discovery, and equity due diligence.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x624FaF18C78456C8Da5bf156Cd77c1A2033F21c5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api-v2.ixs.finance/x402/vaults

IXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE341Add833F9d62082e97eA260BAA6546Cd09F73",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://tollbooth-hello.sjwilliams8.workers.dev/hello

Test endpoint for verifying x402 payment integration end to end. Returns a static greeting in the Agent Tollbooth standard response envelope. Not a data product — use it to smoke-test your x402 client for $0.001 before calling our compliance endpoints: OFAC sanctions screening ($0.01) and FDIC bank verification ($0.01), listed under this same payTo address.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xb3e7993Ed2FC2C79FFF220620240f298BBa9bF5B",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://win.oneshotagent.com/v1/tools/search

Web search returning URLs, titles, and descriptions

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9fb365E4E9385E2a39FeBAd70368267e6f571d9A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/attested-verification

Attested verification-event custody: seal the fact that an identity/liveness/KYC check ran, its method, provider, and re

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://toolcall.click/t/jobs/search

Live job postings without scraping: company= returns an employer's current openings straight from their official ATS board (Greenhouse, Lever, Ashby, SmartRecruiters) with title, location, department, type and apply URL; query= searches remote-heavy job APIs (Remotive, Arbeitnow) by keyword. Optional location= filter. JSON response. $0.02 USDC per call, pay via x402, no API key.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x84FA7Ea8303d4f503267e2e998A3F7D980e814a5",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://x402.charliemorrison.dev/extract

Web-content reader: fetch any http(s) URL and return clean readable text, title/description/canonical, and outbound links as JSON — the data an agent ingests on each step of a crawl or RAG loop. Input: url.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x435afaC555fe115f18e657E49960063c12C6AEd0",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://keyronne.com/api/color

Parse any CSS color (hex, rgb(), hsl()) and emit all three formats plus relative luminance. Compute WCAG contrast ratios against a background with AA/AAA pass-fail for normal and large text, and lighten, darken, or mix colors. Built for agents generating accessible UI themes. POST a JSON body like: {"color":"#3498db","background":"#ffffff"}

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://moltmarket.store/revenue/market-intelligence

Financially verified marketplace metrics plus clearly labelled aggregate discovery signals

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xBfcc51bFcc0eF326F0f78682EbE3327783eA3208",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://x402.fenixfoundry.com/resolution

Did it happen? Check whether a prediction market event has settled on Polymarket or Kalshi and get the resolved outcome, resolution time, source and market URL. A cheap oracle for agents that must verify a real-world outcome before acting.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x737426d3eD53930B889b3f61774669a0FDf3BE54",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://edgar.apitoll.cloud/v1/edgar/smart-money

Smart-money bundle in one call for any US-listed company by stock ticker or CIK: insider trades (Form 4), institutional 13F-HR holdings, and recent 8-K material events together. Track what executives and hedge funds are doing — buys, sells, portfolio positions, and corporate events. Resolves ticker to CIK via SEC's official index. Sourced live from data.sec.gov.

Base crawled 0x833589fC…
0.006per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "6000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x58BdAD5e654691aC5eD4631758f3d8DA00666B6c",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "6000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "7kPWiEbDXu33FomKG6mGa7R8HGSfUGFsAoKFZeBERJaH",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    }
  ]
}
https://latam.lonestaroracle.xyz/report

Full LatAm economic report — currencies, Argentina dolar blue, commodities, AI narrative

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.qist.info/api/hijri

Convert Gregorian dates to Hijri (Umm al-Qura calendar) and back. Returns day/month/year, Arabic and English month names, and a formatted Arabic date string. Essential for agents handling Islamic events, Ramadan, Hajj seasons, or Arabic documents.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x21353452E547B306a6007d834C433a118638D3b3",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://websearch.use.x402atlas.com/extract

Read any web page or article: fetch up to 5 URLs in one batch call and extract the main content as clean, LLM-ready markdown or plain text. Convert webpages to markdown, scrape page text, pull article content for RAG ingestion and AI agent context.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xF752eEB75d3Bea24AA867ad93bfd8EF5a2F431B9",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xF752eEB75d3Bea24AA867ad93bfd8EF5a2F431B9",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xF752eEB75d3Bea24AA867ad93bfd8EF5a2F431B9",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://dns.use.x402atlas.com/rdap

RDAP domain registration lookup: structured registrar, creation/updated/expiry dates, status, nameservers and a computed domain age. A parsed, snake_case JSON alternative to raw WHOIS text.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x446e51DeAb3aE656C99E65369e8eF1148d23d7f7",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://hackernews-data.underscoredone.com/fetch

This tool reads live information from Hacker News, a popular website where people share and discuss technology news. You can either ask for a current list of stories (like the Top, New, Best, Ask, Show, or Job lists) or ask for every story, job posting, and poll that was posted on one specific calendar day in the past. You can also choose to pull in the discussion comments underneath each story, including nested replies several levels deep.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402endpoint-utiwoa54hq-uc.a.run.app/auth

Get a Firebase ID token for authenticating with the callable APIs

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3291e96b3bff7ed56e3ca8364273c5b4654b2b37",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3MZVk97x9SeRxbYpc3jhzRfU2fyA3emYutnqfn9kNfYX",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://crypto.apitoll.cloud/v1/crypto/tvl

DeFi Total Value Locked (TVL) by blockchain or by protocol. Default returns the top chains ranked by TVL in USD; pass ?chain=Ethereum for one chain, or ?protocol=aave-v3 for a protocol's current TVL, 24h and 7d change, category, market cap, and the chains it spans. Track capital flows across DeFi. Sourced from DefiLlama.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3dA40A9aD36640a2C0F533BAC368490095574664",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5Wxg3V6gcmFmmP6SXmGZQAUZPFYsSwoeN2Qewt5BotWz",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.devvizion.com/v0/bounty-radar

Multi-source open bounty radar ranked (0.015 USDC). Free 3-item: GET /v0/sample-radar then POST {limit}.

Base crawled 0x833589fC…
0.015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Multi-source open bounty radar ranked (0.015 USDC). Free 3-item: GET /v0/sample-radar then POST {limit}.",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "15000",
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xE79e7fa7Ce7259C46F9B127b837d2907Bb036F95",
      "resource": "https://x402.devvizion.com/v0/bounty-radar",
      "scheme": "exact"
    }
  ]
}
https://x402.devvizion.com/v0/agent-rep

Agent reputation snapshot (0.015 USDC). Free teaser: GET /v0/sample-rep then POST {wallet}.

Base crawled 0x833589fC…
0.015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Agent reputation snapshot (0.015 USDC). Free teaser: GET /v0/sample-rep then POST {wallet}.",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "15000",
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xE79e7fa7Ce7259C46F9B127b837d2907Bb036F95",
      "resource": "https://x402.devvizion.com/v0/agent-rep",
      "scheme": "exact"
    }
  ]
}
https://api.x402intel.uk/x402-market

x402 market intelligence with current catalog-attributed USDC flow, address-level demand signals and separately labeled value-matched history. The headline covers Base only (market.universeChains); the multi-chain picture ships alongside it as ecosystem, split into an RPC-proven floor and an indexed upper bound that are not additive (notASum). Attribution is not exclusive protocol-intent proof.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "iconUrl": "https://x402intel.uk/favicon.svg",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.bitrefill.com/x402/topups/search

Search mobile top-ups & prepaid airtime for carriers in 180+ countries. Pay in USDC via x402, no account.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://store.agentexchange.work/chain/block-number

The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Live public RPC; one paid call.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "2147pBT4LxoszjvLeGRxyVzpRnMi986VH3FAoprSs8Ez",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://coil.trade/api/board/regime

Market regime classifier for trading agents — is the tape risk-on or risk-off right now? Returns a regime verdict per book (S&P 500, Nasdaq-100, macro, crypto): trade, be selective, or stand down — with the market-state mode, which sectors are green, and the top-down permission ladder (index → sector → name) saying whether individual names are enterable at all. Refreshed ~5 min in market hours, timestamped. Research, not advice.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "tag": "x402-global-challenge",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "decimals": 6,
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "name": "USDC",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 3600,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "decimals": 6,
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "name": "USDC",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 3600,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "decimals": 6,
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "name": "USDC"
      },
      "maxTimeoutSeconds": 3600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5HGarauHaGFynzwNBqLkKcQ4LFR4UCXKZE7bJuP6Ew2N",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604800,
      "network": "eip155:8453",
      "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/balance

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "GET",
              "queryParams": {
                "customer_address": "0x0000000000000000000000000000000000000002",
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "customer_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                },
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "required": [
                "token_address",
                "customer_address"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "balance"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/balance?method=GET — x402-gateway /balance. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "customer_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              },
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "required": [
              "token_address",
              "customer_address"
            ],
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/balance?method=GET",
      "scheme": "exact"
    }
  ]
}
https://vaaya.ai/api/run/firecrawl/scrape

Firecrawl — Scrape a single URL and return clean markdown/HTML.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 360,
      "network": "eip155:8453",
      "payTo": "0x7c655d3d3944Bd27994dD81A036C3aFB19806C40",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/accept-offer

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": true,
              "description": "Two-phase: call without transaction_hash to reserve the offer (status active -> accepted) and receive approve + fillOffer escrow calldata; call again with transaction_hash of the confirmed fillOffer tx to finalize (accepted -> completed).",
              "properties": {
                "offer_id": {
                  "format": "uuid",
                  "type": "string"
                },
                "onchain_offer_id": {
                  "description": "On-chain escrow offer id (phase 1, when known).",
                  "type": "number"
                },
                "transaction_hash": {
                  "description": "Phase 2: hash of the confirmed escrow fillOffer transaction on Base.",
                  "pattern": "^0x[a-fA-F0-9]{64}$",
                  "type": "string"
                }
              },
              "required": [
                "offer_id"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "recipient-api/accept-offer"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "body": {
                    "type": "object"
                  },
                  "bodyType": {
                    "enum": [
                      "json",
                      "form-data",
                      "text"
                    ],
                    "type": "string"
                  },
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "POST",
                      "PUT",
                      "PATCH"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method",
                  "bodyType",
                  "body"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "json",
          "description": "HTTP POST https://api.loyalspark.online/x402-gateway/recipient-api/accept-offer?method=POST — x402-gateway /recipient-api/accept-offer. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "description": "Two-phase: call without transaction_hash to reserve the offer (status active -> accepted) and receive approve + fillOffer escrow calldata; call again with transaction_hash of the confirmed fillOffer tx to finalize (accepted -> completed).",
            "properties": {
              "offer_id": {
                "format": "uuid",
                "type": "string"
              },
              "onchain_offer_id": {
                "description": "On-chain escrow offer id (phase 1, when known).",
                "type": "number"
              },
              "transaction_hash": {
                "description": "Phase 2: hash of the confirmed escrow fillOffer transaction on Base.",
                "pattern": "^0x[a-fA-F0-9]{64}$",
                "type": "string"
              }
            },
            "required": [
              "offer_id"
            ],
            "type": "object"
          },
          "method": "POST",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/accept-offer?method=POST",
      "scheme": "exact"
    }
  ]
}
https://api.snapfix.media/v1/transform

Resize, crop, compress, convert (WebP/AVIF/JPEG/PNG/GIF), optimize, and transform images from a natural-language instruction. Remove backgrounds, make thumbnails, srcset variants, icon sets, watermarks, GIF edits, Shopify-ready product images. Up to 12 named variants per request as a ZIP, or base64 data URI output. Every constraint is verified against the real output bytes before payment settles; failures are never charged.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7006853650Cf5D2FB1BBf0416AaDF365c08c6D44",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://glim.sh/api/v1/twitter/get

Fetch a tweet (with thread context) by URL/id or a user (with recent tweets) from one URL

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://quartermaster.surewhynot.app/v1/price

USD price for major tokens by symbol or any Base ERC-20 by contract address, with source failover.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5253666c40432f009ebd99908b9cd2a7fd1019cb",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FgcKNzsBXSEHGNZNWetPsjXiBZk1WFoU6sF2zVsnzXfa",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://tools.ipintel.ai/dns-lookup

DNS Lookup API. Resolve domain DNS records and receive structured JSON with A, AAAA, MX, NS, TXT, CAA, and SOA records. Useful for agents, developers, domain diagnostics, email setup checks, DNS troubleshooting, and infrastructure investigation. Paid per call via x402.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0550779CFBc832657A8BB46BAC9f359A5ad038B8",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://entropy.rip/api/financial/gas

Fetch live gas price estimations and base fees for EVM chains

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x4293f75E69b22Ee68AfA0F464dE86E5CD80BED75",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://pulse.theaslangroupllc.com/api/blueprint

How to make money with AI — one tailored business-in-a-box. Give a goal, budget and interests; get a specific business to start now: the exact real-time PulseNetwork API engine to build it on, suggested pricing, unit economics, monetization paths, and a fork-and-ship starter kit. Turns 'find me a way to earn / passive income / start a business' into a concrete plan. For agents tasked with making money.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "A139570E14DB49CDAD0038D9311789C4",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "0.01",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "91D4213E587648AE9C3FD815D365994D",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.01"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    }
  ]
}
https://x402-mcp.onrender.com/base/tx-decision

Should I submit this Base transaction now, and at what fee? One call returns submit-or-wait, max fee per gas and priority fee in gwei (EIP-1559), and the estimated cost in USD for an ETH transfer, USDC ERC-20 transfer, or x402 settlement on Base mainnet. Live gas price and congestion from Base RPC blocks, no API key. For bots that queue transactions: call before every send.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8A897D546c22d726b45Fa25F0EBB56207E63fF4e",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://lionx402.com/api/x402/domain-enrich

Domain enrich for agents: live DNS (MX/SPF/DMARC/A) + HTTPS trust score. $0.005 keyless Base USDC. ?domain=stripe.com

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://arbipulse.theaslangroupllc.com/api/calculator

Itemized fee breakdown and net P&L for any arbitrage trade — fees, slippage and gas. For arbitrage and trading agents.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "E8974F959E004D58B08E4B9E500F7CC7",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "0.02",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "7F2796F9F7F343788C77ED400F56BFD5",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.02"
    },
    {
      "amount": "20000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "20000000000000000"
    }
  ]
}
https://api.stelardigital.com/telemetry

Historical telemetry from our retired grid-trading bot - allocation, reconciled P&L, signal votes, and the human-approval trail for every trade. The bot stopped trading 2026-08-16; this endpoint serves its frozen record.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x32d711C66dD1AD0c42D0cFe48e58ee5f2dE7c243",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Historical telemetry from our retired grid-trading bot - allocation, reconciled P&L, signal votes, and the human-approval trail for every trade. The bot stopped trading 2026-08-16; this endpoint serves its frozen record.",
      "extra": {
        "decimals": 6,
        "feePayer": "8a8fFNfk2AGS7rgVv1BoqPUWnzQuoCrShJV8tSE6RAYi",
        "name": "USD Coin"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "Cg2HRPURAFKiAJ8XJ3VeRqyZCBtLbcxb9HZn3DW7WusH",
      "resource": "https://api.stelardigital.com/telemetry",
      "scheme": "exact"
    }
  ]
}
https://toolsmith-api.dassad10.workers.dev/t/crypto/gas

Current gas price and latest block for Base or Ethereum mainnet, straight from public RPC. Fresh within 15 seconds. JSON response. $0.002 USDC per call, pay via x402, no API key.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x84FA7Ea8303d4f503267e2e998A3F7D980e814a5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://conc-exe.xyz/api/concierge-intel-macro

Macro snapshot — SPX, VIX, DXY, gold, BTC/ETH marks, Fear & Greed, Treasury yields, central-bank calendar

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xb85c83cc448edca8eb724f5d79b523faff9375a7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:42161",
      "payTo": "0x94db8343ec6839131c082126ea1e723e30c256f3",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:4663",
      "payTo": "0x94db8343ec6839131c082126ea1e723e30c256f3",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9uiwHcDNYg8rbPDRaJBfMHVo8f8CAgCCZzz1JB6XyEFN",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "DeXterR2kQm8AvRHnNPatWkE46TfAcMeBDjb6FySoAb8"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9uiwHcDNYg8rbPDRaJBfMHVo8f8CAgCCZzz1JB6XyEFN",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "175000000",
      "asset": "F2bnJW1z55UQ9ZqGX5RwYQfvNJrd23n66eyBV5QZpump",
      "extra": {
        "decimals": 6,
        "merchantId": "soon",
        "name": "TCX",
        "settlement": "self"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9uiwHcDNYg8rbPDRaJBfMHVo8f8CAgCCZzz1JB6XyEFN",
      "scheme": "exact",
      "maxAmountRequired": "175000000"
    }
  ]
}
https://api.cueframe.ai/v1/composition/validate

Validate a composition body without saving it (dry-run)

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA82C8B6971A7379BadB2FB96032D82aF46EcCc0A",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://lionx402.com/api/x402/domain-intel-json

Live domain trust signals: DNS (MX/SPF/DMARC/A) + HTTPS probe via Cloudflare DoH. Keyless $0.005.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://lionx402.com/api/x402/social-signal-intel-json

LION Social Signal Intel (HN + Reddit keyless attention/trend)

Base crawled 0x833589fC…
0.004per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "4000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    }
  ]
}
https://api.preflightstack.com/v1/dependency-preflight

Evaluate up to 10 exact npm or PyPI package versions in one $0.02 paid batch immediately before installation or an exact-version change. Returns deterministic allow, review, or block guidance with known-vulnerability, lifecycle, declared-license, release-age, and npm install-lifecycle evidence. Reuse a current result for unchanged inputs instead of purchasing a duplicate check for an installation retry.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9acdadcec881a63508c0f2CD3A4ae61149cc2500",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://tripadvisor.x402.paysponge.com/api/v1/location/nearby_search

Service: Tripadvisor (https://tripadvisor.x402.paysponge.com/api/v1/location/nearby_search)

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6302D9e6DBB22fEC3c350551568Bb39B4b35Ad57",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9246XrsAEKH6hAyEQe5PvdpUL1p5Ktj9c7ySnwQn6ois",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.socialfetch.dev/v1/reddit/search

Search Reddit posts site-wide by keyword (not scoped to one subreddit — use reddit.subreddit.search.list for that).

Base crawled 0x833589fC…
0.014per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "14000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x02C2fCAfCe36B4AAdB39625866Bc6B1699d83043",
      "scheme": "exact",
      "maxAmountRequired": "14000"
    }
  ]
}
https://omniterminal.app/api/x402/v1/market-carry/:symbol

Omni Terminal compares current Hyperliquid 1h funding with mechanical 8h, 1d and APR projections, open interest, volume, premium, and mark-oracle basis for one perpetual market.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://api.basefeed.io/v1/ping

x402 settlement test

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xEfc3f6Ba8A706af67162ebaB84Fc2d09fA73360E",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/workflow/prepare-reward-redemption

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": true,
              "description": "JSON body for POST /recipient-api/workflow/prepare-reward-redemption. See https://loyalspark.online/openapi.json for the full schema.",
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "recipient-api/workflow/prepare-reward-redemption"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "body": {
                    "type": "object"
                  },
                  "bodyType": {
                    "enum": [
                      "json",
                      "form-data",
                      "text"
                    ],
                    "type": "string"
                  },
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "POST",
                      "PUT",
                      "PATCH"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method",
                  "bodyType",
                  "body"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "json",
          "description": "HTTP POST https://api.loyalspark.online/x402-gateway/recipient-api/workflow/prepare-reward-redemption?method=POST — x402-gateway /recipient-api/workflow/prepare-reward-redemption. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "description": "JSON body for POST /recipient-api/workflow/prepare-reward-redemption. See https://loyalspark.online/openapi.json for the full schema.",
            "type": "object"
          },
          "method": "POST",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/workflow/prepare-reward-redemption?method=POST",
      "scheme": "exact"
    }
  ]
}
https://api.kadec0.xyz/v1/defi-tvl

DeFi TVL for protocols and chains. Returns total value locked per DeFi protocol or per chain via DefiLlama, with category, supported chains, and TVL change over time, filterable by category or chain. For DeFi protocol screening, chain-level TVL comparison, and tracking where liquidity is moving. Keyless.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/wallet-record/:address

Attested x402 payment history for any buyer wallet: settlement count, first-seen, last-seen, total spent, services used,

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://www.stablebrowser.dev/api/sessions

Create a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls.

Base crawled 0x833589fC…
0.1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xcB79b3c5A7dADcD7C30E3bE252c0CA44a06C6f78",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    }
  ]
}
https://api.kadec0.xyz/v1/github

GitHub data. Repository stats, user profiles, and code-search results (stars, forks, language, topics, issues) via the GitHub REST API.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.x402intel.uk/x402-authenticity/:payTo

x402 seller attribution intelligence: reported calls versus catalog-attributed on-chain USDC flow, payer-address concentration and forensic signals. Attribution is not protocol or fraud proof.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "iconUrl": "https://x402intel.uk/favicon.svg",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://blockrun.ai/api/v1/pm/kalshi/markets

Query Kalshi markets with filtering, sorting, and pagination

Base crawled 0x833589fC…
0.0085per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
      "scheme": "exact",
      "maxAmountRequired": "8500"
    }
  ]
}
https://api.nansen.ai/api/v1/tgm/token-information

Get "Token God Mode" (TGM) token information data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://blockrun.ai/api/v1/defillama/prices/coingecko:bitcoin

Token price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.kadec0.xyz/v1/whois-bulk

Bulk WHOIS lookup. Registrar, dates, and nameservers for up to 10 domains in a single batch call.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://crypto.apitoll.cloud/v1/crypto/perps

Perpetual-futures market data from Hyperliquid for any coin (BTC, ETH, SOL, HYPE…): mark price, hourly funding rate and its annualized APR, open interest in coin and USD, 24-hour notional volume, 24h price change, and max leverage, across 200+ perp markets. Sort by volume, open interest, or funding. Track the perp market the way trading agents do. Sourced from Hyperliquid.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3dA40A9aD36640a2C0F533BAC368490095574664",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5Wxg3V6gcmFmmP6SXmGZQAUZPFYsSwoeN2Qewt5BotWz",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://sandbox.node4all.com/v1/x402-test

Node4All Fortune — deterministic fortune reading derived from the x402 payment authorization nonce. Flagship demo of the Node4All x402 v2 payment flow. Operator: Node4All (https://node4all.com). Currency: USDC on Base.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:84532",
      "payTo": "0xd275612Bf0BB35638432c4D95eAA8D5d22346Ca6",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://api.gitbeacon.dev/v1/repos

Paid ($0.01 USDC via x402). Top trending GitHub repos from the latest daily scan, sorted by stars — description, language, topics, license, forks, author followers, and README excerpt. Filterable by programming language. Response carries the scanDate provenance. Compute-first / settle-after — you are never charged for an error.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/analytics

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "GET",
              "queryParams": {
                "customer_address": "0x0000000000000000000000000000000000000002",
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {},
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "analytics"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/analytics?method=GET — x402-gateway /analytics. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {},
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/analytics?method=GET",
      "scheme": "exact"
    }
  ]
}
https://netintel.dev/crypto/market

Structured live crypto market data for ~50 top assets in one JSON call: spot price and 24h open/high/low/volume/change (Coinbase Exchange) plus market cap, rank and circulating/total/max supply (CoinGecko). Quote in USD, EUR or GBP; defaults symbol=BTC vs=USD, so a bare call returns Bitcoin. 60s cache, keyless upstreams — the purpose-built replacement for scraping exchange price pages.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8FVeybWnB4dYrxTuPK7WzFZNAiEcFVaDLFnKpRwVGr5s",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/cancel-offer

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": true,
              "properties": {
                "offer_id": {
                  "format": "uuid",
                  "type": "string"
                }
              },
              "required": [
                "offer_id"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "recipient-api/cancel-offer"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "body": {
                    "type": "object"
                  },
                  "bodyType": {
                    "enum": [
                      "json",
                      "form-data",
                      "text"
                    ],
                    "type": "string"
                  },
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "POST",
                      "PUT",
                      "PATCH"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method",
                  "bodyType",
                  "body"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "json",
          "description": "HTTP POST https://api.loyalspark.online/x402-gateway/recipient-api/cancel-offer?method=POST — x402-gateway /recipient-api/cancel-offer. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "offer_id": {
                "format": "uuid",
                "type": "string"
              }
            },
            "required": [
              "offer_id"
            ],
            "type": "object"
          },
          "method": "POST",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/cancel-offer?method=POST",
      "scheme": "exact"
    }
  ]
}
https://win.oneshotagent.com/v1/tools/web-read

Read a web page and extract content as markdown with screenshot

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9fb365E4E9385E2a39FeBAd70368267e6f571d9A",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/attested-inference

Attested LLM inference: gpt-4o-mini chat completion plus a post-quantum signed, Hedera-anchored attestation binding the

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/decision-review

Attested policy evaluation: submit a proposed agent action, its context, and the policy it must satisfy. Returns a verdi

Base crawled 0x833589fC…
0.1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    }
  ]
}
https://4yearcycle.com/x402/web-search

General web search reselling the Tavily Search API: query the live web and get back ranked results (title, URL, snippet, relevance score) plus an optional short synthesized answer, with basic or advanced search depth and optional domain include/exclude filters.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9862ca83b72aB95521F457aFf6e6EFb03d8164C3",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://x402.glassnode.com/v1/metadata/metrics

Metrics Catalog — Lists all available metric paths. Use the optional filter parameters (asset, exchange, interval, currency, etc.) to narrow the catalog to metrics that support a given combination. Data by Glassnode.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x1f81da453901D15296c1710af83e0Bc0371D39f1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/vouchers

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "GET",
              "queryParams": {
                "customer_address": "0x0000000000000000000000000000000000000002",
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "status": {
                  "enum": [
                    "active",
                    "used",
                    "expired",
                    "cancelled"
                  ],
                  "type": "string"
                },
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "vouchers"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/vouchers?method=GET — x402-gateway /vouchers. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "status": {
                "enum": [
                  "active",
                  "used",
                  "expired",
                  "cancelled"
                ],
                "type": "string"
              },
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/vouchers?method=GET",
      "scheme": "exact"
    }
  ]
}
https://hyperliquid-accounts.use.x402atlas.com/staking

A Hyperliquid account's HYPE staking summary (delegated/undelegated/pending), for any 0x address.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xE79Aa9d55170f7E1AC420266ec93A6c28c436de8",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://vaaya.ai/api/run/fal/generate

Generate or edit images, video, music, and speech via fal.ai. Pass `model` (one of the registered keys) plus the model-specific params (prompt, image_url, aspect_ratio, duration, text, etc.).

Base crawled 0x833589fC…
0.33per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "330000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 360,
      "network": "eip155:8453",
      "payTo": "0x7c655d3d3944Bd27994dD81A036C3aFB19806C40",
      "scheme": "exact",
      "maxAmountRequired": "330000"
    }
  ]
}
https://coil.trade/api/board/indices

Index scores for trading agents — how strong is each major index right now? One read returns the scored index row per book: S&P 500 (SPY) and Nasdaq-100 (QQQ) plus the macro and BTC/ETH crypto books — 0-100 opportunity score, percentile, green/yellow/red light and entry state for each index, with every book's regime verdict alongside. The cheapest top-down read of the whole tape. Refreshed ~5 min in market hours, timestamped. Research, not advice.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "tag": "x402-global-challenge",
        "version": "2"
      },
      "maxTimeoutSeconds": 3600,
      "network": "eip155:8453",
      "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "decimals": 6,
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "name": "USDC",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 3600,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "31566704",
      "extra": {
        "decimals": 6,
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "name": "USDC",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 3600,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "decimals": 6,
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "name": "USDC"
      },
      "maxTimeoutSeconds": 3600,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5HGarauHaGFynzwNBqLkKcQ4LFR4UCXKZE7bJuP6Ew2N",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604800,
      "network": "eip155:8453",
      "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://x402.ottoai.services/portfolio

Multi-chain portfolio snapshot with token balances and yield positions for a user's Otto AI Safe accounts across Base, Ethereum, Arbitrum, Polygon, BSC, Avalanche, and Solana.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.nansen.ai/api/v1/profiler/address/transactions

Get Address Transactions Data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.ottoai.services/token-alpha

Premium token intelligence: price metrics, news, Twitter sentiment, and futures data. Find out why your token is moving.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://scvd.store/api/buy/settlement_attestation

Settlement Attestation. REQUIRES ?tx_hash= on the paid request — a signed request without it is refused before the gate and no money moves. A signed JSON observation of one transaction on Base, Polygon, or Solana — the identifier's shape picks the chain — with status (SETTLED, NOT_FOUND, PENDING_FINALITY, INSUFFICIENT_MATCH or REVERTED), block height (slots on Solana), confirmations, chain head, the query echoed back, and an evidence hash — verifiable against the store's pub…

Base crawled 0x833589fC…
0.004per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "4000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    },
    {
      "amount": "4000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    },
    {
      "amount": "4000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    },
    {
      "amount": "4000",
      "asset": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    },
    {
      "amount": "4000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    }
  ]
}
https://google-patents.use.x402atlas.com/search

Google Patents search — find patents by technology, inventor or assignee with date, country, legal-status and classification filters; clean JSON with titles, snippets, dates, owners, PDFs and patent IDs.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.brazilayer.com/v1/fundos/fluxos

Where Brazilian institutional money moved today: daily net flows (subscriptions minus redemptions) by fund class — fixed income, equities, multi-strategy, FX — across the entire R$ 13.8 trillion Brazilian fund industry, from official CVM filings covering ~25,000 fund classes. The emerging-market equivalent of smart-money netflow, from the regulator itself. Free sample, no payment: https://api.brazilayer.com/v1/fundos/amostra

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://labor.lonestaroracle.xyz/labor

US labor-market signal (jobs, unemployment, wages, JOLTS)

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.kakerapetit.dev/v1/text/similarity

Compute similarity between two texts. Returns Jaccard, Dice, cosine and overlap scores for two strings. Use to deduplicate documents, match names or titles, and detect near-identical text.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3a43FdF92B1596B22DDF719d5b528c537Da4237d",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://glim.sh/api/v1/github/search

Search GitHub repositories, conversations, and discussions

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://vape-x402.vapex402.workers.dev/data/chain_overview

VAPE chain_overview — A chain's headline TVL and its rank among all tracked chains (default Base).

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8aAB9a6d28e9AbA2a15a613C90F24f352f0Cce15",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.aispace.bot/api/v1/embeddings

Text embeddings on Venice models for retrieval, RAG, and semantic search, paid per request in USDC on Base via x402, no API key. Resolve a model id from GET /api/v1/models?type=embedding.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA7f3Ad0E69F61864092FAbBa6Cee00AF6e584689",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5hqrYCkTNe5z9Uc8o29KDNd2Gn9YreE6ZthZ7QY5hrKY",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.robotsshop.io/v0/search

RobotsShop Trust Index — filtered ranked x402 endpoints (score, grade, spam, payTo integrity)

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x53831fab63ba75a958115c3b4eb598a10cfcc7e0",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6HsafkesR9eTifTRpDWMYq1QuyGKASwJ6UdRRYWN3tkq",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.nansen.ai/api/v1/token-screener

Retrieve token screener data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/recipient-api/redeem-reward

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "headers": {
                "x-api-key": "rwk_..."
              },
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": true,
              "properties": {
                "reward_id": {
                  "format": "uuid",
                  "type": "string"
                },
                "transaction_hash": {
                  "pattern": "^0x[a-fA-F0-9]{64}$",
                  "type": "string"
                }
              },
              "required": [
                "reward_id",
                "transaction_hash"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "recipient-api/redeem-reward"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "body": {
                    "type": "object"
                  },
                  "bodyType": {
                    "enum": [
                      "json",
                      "form-data",
                      "text"
                    ],
                    "type": "string"
                  },
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "POST",
                      "PUT",
                      "PATCH"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method",
                  "bodyType",
                  "body"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "json",
          "description": "HTTP POST https://api.loyalspark.online/x402-gateway/recipient-api/redeem-reward?method=POST — x402-gateway /recipient-api/redeem-reward. Authenticate with header x-api-key: rwk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": true,
            "properties": {
              "reward_id": {
                "format": "uuid",
                "type": "string"
              },
              "transaction_hash": {
                "pattern": "^0x[a-fA-F0-9]{64}$",
                "type": "string"
              }
            },
            "required": [
              "reward_id",
              "transaction_hash"
            ],
            "type": "object"
          },
          "method": "POST",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/recipient-api/redeem-reward?method=POST",
      "scheme": "exact"
    }
  ]
}
https://api.kadec0.xyz/v1/domain-info

Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://txguard.schemasure.com/v1/tx/preflight

Explain and preflight an unsigned Base transaction, EIP-712 typed data, or an EIP-3009 x402 payment authorization before you sign it. Decodes intent against verified ABIs, resolves proxies, classifies approvals, and checks a payment authorization against the quote it claims to pay: recipient, amount, asset, chain, freshness, and nonce replay. Returns unknown rather than guessing when a selector is ambiguous. Not a guarantee that a transaction is safe or profitable.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x9876af0F6D8Ed5155Cd02d1ca56D128601612690",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://space-weather.use.x402atlas.com/alerts

Space-weather alerts — newest bounded NOAA SWPC geomagnetic and solar-flare messages with deterministic product-code kinds, complete-message digests, and freshness.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://xl402.agentsats.org/v1/web-extract

Extrae el contenido de una URL y lo devuelve limpio en Markdown/HTML para el contexto de un LLM.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x2a373cb1eBB8907A95626c0B0aeF47F575a0Ab87",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x2a373cb1eBB8907A95626c0B0aeF47F575a0Ab87",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.vaults.fyi/v2/networks

Retrieves a complete list of supported blockchain networks with their identifiers including network name, chain ID, and CAIP format identifier.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "symbol": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x108BCd8a07C3fdfca3Aa500784A8573123a1029F",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
        "symbol": "USDC",
        "version": "2",
        "withdrawDelay": 900
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x108BCd8a07C3fdfca3Aa500784A8573123a1029F",
      "scheme": "batch-settlement",
      "maxAmountRequired": "2000"
    }
  ]
}
https://stable.lonestaroracle.xyz/pulse

Top stables ranked by mcap with peg deviation (now/24h/7d) + stability score + risk

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0xeF2a4B6756895aAf1374640dcFCD4947959442ab",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://agent-arcade.use.x402atlas.com/chess/daily

Chess Daily tactics puzzle — solve a deterministic UTC daily position from a pinned CC0 Lichess subset using legal UCI moves.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.invoket.com/weather/forecast

Before your agent schedules a delivery, plans outdoor work or hedges short-term weather exposure: a point forecast of 2 m temperature, precipitation and 10 m wind — plus opt-in convective, humidity, cloud and snow variables — for any GPS point or city. Deterministic NOAA GFS at 0.25 deg to 16 days (384 h), NOAA GEFS ensemble mean at 0.5 deg to 35 days (840 h) — beyond 16 days the value is an ensemble mean with smoothed extremes: trend, not threshold triggers. The lead selector is optional (omitted, the forecast defaults to the current analysis time) and the response names the model that served it and the exact forecast step.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x4465825B0ac713aA2Fa07Ea29023020804A128ee",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://app.suedeai.ai/agent/image

AI image generation from a text prompt. Generate album and single cover art, podcast and video thumbnails, social and campaign graphics, concept art, storyboard frames, product shots, and article illustrations. Returns one hosted still image as PNG or JPEG in square, portrait, or widescreen framing (1:1, 4:5, 9:16, 16:9, 21:9). Async by default: poll the returned pollUrl for imageUrl, or pass ?async=false to block.

Base crawled 0x833589fC…
0.15per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "150000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "AI image generation from a text prompt. Generate album and single cover art, podcast and video thumbnails, social and campaign graphics, concept art, storyboard frames, product shots, and article illustrations. Returns one hosted still image as PNG or JPEG in square, portrait, or widescreen framing (1:1, 4:5, 9:16, 16:9, 21:9). Async by default: poll the returned pollUrl for imageUrl, or pass ?async=false to block.",
      "docs": "https://app.suedeai.ai/developers",
      "extra": {
        "decimals": 6,
        "name": "USD Coin",
        "priceUsd": "$0.15",
        "version": "2"
      },
      "maxAmountRequired": "150000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "body": {
            "aspectRatio": "1:1",
            "outputFormat": "png",
            "prompt": "<prompt>"
          },
          "bodyType": "json",
          "discoverable": true,
          "method": "POST",
          "type": "http"
        },
        "output": {
          "jobId": "image-job-example",
          "pollUrl": "https://app.suedeai.ai/agent/image/image-job-example",
          "provider": "suede",
          "status": "queued"
        }
      },
      "payTo": "0x10FF767043A1723E0BB5B9207bC37D3442cC9E4F",
      "resource": "https://app.suedeai.ai/agent/image",
      "scheme": "exact"
    }
  ]
}
https://api.x402dataapi.com/v1/agent-accessibility

Paid x402 API for AI agents that checks robots.txt, sitemap availability, llms.txt discovery, AI crawler readiness, agent accessibility and AI scraping compatibility for a public URL.

Base crawled 0x833589fC…
1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "currency": "USDC",
        "displayAmount": "1",
        "name": "USD Coin",
        "resource": "/v1/agent-accessibility",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE3e597A4698e0Ed0e06F9d9fE513157728FBc28B",
      "scheme": "exact",
      "maxAmountRequired": "1000000"
    }
  ]
}
https://edgar.apitoll.cloud/v1/edgar/insider

Latest insider trades (SEC Form 4) for any US-listed company by stock ticker or CIK: who bought or sold, their role (director, officer, 10% owner), the buy/sell/grant/exercise code, shares, price per share, total value, and shares held after. Resolves ticker to CIK via SEC's official index. Sourced live from data.sec.gov.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x58BdAD5e654691aC5eD4631758f3d8DA00666B6c",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "7kPWiEbDXu33FomKG6mGa7R8HGSfUGFsAoKFZeBERJaH",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://signal.quickai.build/signal

Quick Signal TA v3.1.0 — Crypto technical analysis. Ten indicators with natural-language assessments. Query params: token (required), timeframe, bollinger_period, rsi_period.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x85557C90027354eAeFFe9Ee4B4f4014818d8D3e1",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://vape-x402.vapex402.workers.dev/data/chain_protocols

VAPE chain_protocols — Top protocols on a chain by TVL (default Base), each with its real logo, category, and 24h/7d change — the chain-ecosystem view.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
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      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8aAB9a6d28e9AbA2a15a613C90F24f352f0Cce15",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.brazilayer.com/v1/commodities/hidrologia

Brazil stored hydro energy (EAR) by grid subsystem, daily from the official grid operator (ONS), with 7-day delta. Brazil is hydro-dependent: reservoir levels drive power prices, aluminum/industrial costs and drought narratives. A compact energy-risk gauge for one of the world largest grids. Free sample, no payment: https://api.brazilayer.com/v1/commodities/amostra

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://macropulse.theaslangroupllc.com/api/macro/us

Official US macro data read straight from Chainlink contracts. No LLM, no API key. Answers "what is US GDP growth", "current US inflation PCE", "what is SOFR today", "official US economic data". 7 series: real GDP level+growth, PCE index+inflation, real final sales, SOFR. Six are BEA (Dept of Commerce) on Base, SOFR is NY Fed on Ethereum - we assemble both chains. Each value ships its contract + round ID: verify us on an immutable ledger.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
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      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "version": "1"
      },
      "maxTimeoutSeconds": 604900,
      "network": "eip155:8453",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:999",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
      "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "XRP",
      "extra": {
        "invoiceId": "82BD4ACCBC8C4E278AA7DB6E705865C8",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "0.01",
      "asset": "524C555344000000000000000000000000000000",
      "extra": {
        "invoiceId": "C9748A05FD834768895DB45A50A87EBC",
        "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
        "sourceTag": 804681468
      },
      "maxTimeoutSeconds": 300,
      "network": "xrpl:0",
      "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
      "scheme": "exact",
      "maxAmountRequired": "0.01"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    }
  ]
}
https://lionx402.com/api/x402/cpg-product-intel-json

CPG product data + shop prices by barcode or name. Open Food Facts + Open Prices. Ed25519 attested.

Base crawled 0x833589fC…
0.004per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "4000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "4000"
    }
  ]
}
https://lionx402.com/api/x402/lei-lookup-json

GLEIF LEI lookup for AI agents — Legal Entity Identifier search by LEI code, legal name, or domain. Keyless Global LEI Index Golden Copy (api.gleif.org), no API key. LEI, jurisdiction, registration status, LOU. Ed25519-attested. $0.005 Base USDC x402. Matches: LEI, GLEIF, legal entity identifier, LEI lookup, company LEI.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://aiagentoracle.ai/api/v1/tokens/movers

AgentOracle: top 10 gainers and top 10 losers by 24h price change percentage across all tracked on-chain tokens. Returns two parallel arrays plus an `asOf` timestamp.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x2feCabDFC849C76fdC28CA13Aa0Ab392753EF35C",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.kadec0.xyz/v1/cve

CVE vulnerability lookup. Returns security vulnerability records by CVE id or keyword from the NIST National Vulnerability Database and GitHub Security Advisories, each with CVSS score, severity, CWE weakness class, affected products, and references, filterable by severity and source. For vulnerability triage and dependency risk checks. Keyless.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.ottoai.services/yield-alpha

Best DeFi yield opportunities across stablecoins, ETH, and BTC with risk ratings and APY comparisons.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://x402-stablecoin-data-demo.ryan-ee4.workers.dev/v1/reports/stablecoin-bridge-flows

Retrieve a seven-day USD-denominated report of Tether bridge flows on Ethereum. This is a bounded onchain stablecoin intelligence product backed by The Tie's data API.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x2172735a5B8907cDD5ee56c3472EB21E13C95fa9",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.cloudpulsepoint.com/agent/check/http

Fetch a URL and report whether it is reachable, the HTTP status code, and the response time in milliseconds. A fast liveness/uptime probe — run it before relying on a site or as a cheap health signal.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
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      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x05a877EF93E7818828D199E2Df0028bca3C75bf0",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://coingecko.use.x402atlas.com/ohlc

OHLC candlestick data for crypto — daily open/high/low/close candles over 1-365 days for any coin by CoinGecko id, chart-ready.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
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  "accepts": [
    {
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      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
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      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://twitter.use.x402atlas.com/user-tweets

Get a paginated timeline of posts from an X user.

Base crawled 0x833589fC…
0.006per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "6000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "6000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    },
    {
      "amount": "6000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x51D577C8CBB8b3fB1BA0CE31c7923cC27a07F78B",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    }
  ]
}
https://api.oblique.markets/api/v1/paid/x402-facilitator-health

Use when an agent needs x402 facilitator health. Returns Live health probe of the two most-used x402 facilitators: supported kinds, schemes and networks from one, reachability with HTTP status and latency from the other (the one this service settles through on Base and Solana). $0.003.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Use when an agent needs x402 facilitator health. Returns Live health probe of the two most-used x402 facilitators: supported kinds, schemes and networks from one, reachability with HTTP status and latency from the other (the one this service settles through on Base and Solana). $0.003.",
      "extra": {
        "bazaar": {
          "category": "verification",
          "description": "Use when an agent needs x402 facilitator health. Returns Live health probe of the two most-used x402 facilitators: supported kinds, schemes and networks from one, reachability with HTTP status and latency from the other (the one this service settles through on Base and Solana). $0.003.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "x402",
            "facilitator",
            "health",
            "verification"
          ]
        },
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x970007590aCC5C938cd51345B17AF51B1B40D3Ab",
      "resource": "https://api.oblique.markets/api/v1/paid/x402-facilitator-health",
      "scheme": "exact"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Use when an agent needs x402 facilitator health. Returns Live health probe of the two most-used x402 facilitators: supported kinds, schemes and networks from one, reachability with HTTP status and latency from the other (the one this service settles through on Base and Solana). $0.003.",
      "extra": {
        "bazaar": {
          "category": "verification",
          "description": "Use when an agent needs x402 facilitator health. Returns Live health probe of the two most-used x402 facilitators: supported kinds, schemes and networks from one, reachability with HTTP status and latency from the other (the one this service settles through on Base and Solana). $0.003.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "x402",
            "facilitator",
            "health",
            "verification"
          ]
        },
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin"
      },
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GYyTRmt317JafPHXPnM54Fsvsma5GnS9wm6qGMqaykdS",
      "resource": "https://api.oblique.markets/api/v1/paid/x402-facilitator-health",
      "scheme": "exact"
    }
  ]
}
https://grant-search.krimskrams.xyz/v1/search

Search current U.S. Grants.gov opportunities by default, or set source=eu to search English EU Funding & Tenders topics with SEDIA status 31094502. Inputs are source, query, agency, statuses, limit, closing_within_days, and minimum_award_ceiling. Receive up to 20 normalized JSON records with title, agency, status, open and close dates, award amounts, eligibility, funding fields, and official_url.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "outputSchema": {
        "required": [
          "query",
          "source_hit_count",
          "candidates_evaluated",
          "result_count",
          "partial_results",
          "retrieved_at",
          "source",
          "source_api",
          "results"
        ],
        "type": "object"
      },
      "payTo": "0x276efA09388fB1578A6c415B8F90D26fdfCe0CF2",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://ozmium.org/v1/signals

EXPERIMENTAL / WIP- an early, unproven BUY/SELL signal feed (no established out-of-sample edge, not advice); corroborate with news + cross-asset context before acting. Full details: GET /v1.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "builderCode": "bc_cuzowhhb",
        "discoverable": true,
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x53a05c0eed6cbf065f31aedbae7b0d8ce1a0f4db",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://voidfeed.ai/v1/content/fact-feed/latest

Returns verified, citation-backed facts about new AI model releases, benchmark scores, and protocol changes, each with source URLs and confidence.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "decimals": 6,
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x71033AB6eD376a0B53D1826eA632DDFeC96b3661",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "2VS2kvhZU5doNpweAQ34wxwXqPdVvEdR35K92CzsEoH1",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.oblique.markets/api/v1/paid/bazaar-pulse

Use when an agent wants one-call situational awareness of the x402 Bazaar before choosing what to buy or sell. Returns Live x402 Bazaar market pulse: trending services, call volumes, new listings, and catalog changes from daily full-catalog snapshots. Machine-readable JSON for agent-market research. $0.002.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Use when an agent wants one-call situational awareness of the x402 Bazaar before choosing what to buy or sell. Returns Live x402 Bazaar market pulse: trending services, call volumes, new listings, and catalog changes from daily full-catalog snapshots. Machine-readable JSON for agent-market research. $0.002.",
      "extra": {
        "bazaar": {
          "category": "market-data",
          "description": "Use when an agent wants one-call situational awareness of the x402 Bazaar before choosing what to buy or sell. Returns Live x402 Bazaar market pulse: trending services, call volumes, new listings, and catalog changes from daily full-catalog snapshots. Machine-readable JSON for agent-market research. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "bazaar",
            "market-data",
            "x402",
            "catalogue",
            "trends"
          ]
        },
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x970007590aCC5C938cd51345B17AF51B1B40D3Ab",
      "resource": "https://api.oblique.markets/api/v1/paid/bazaar-pulse",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "description": "Use when an agent wants one-call situational awareness of the x402 Bazaar before choosing what to buy or sell. Returns Live x402 Bazaar market pulse: trending services, call volumes, new listings, and catalog changes from daily full-catalog snapshots. Machine-readable JSON for agent-market research. $0.002.",
      "extra": {
        "bazaar": {
          "category": "market-data",
          "description": "Use when an agent wants one-call situational awareness of the x402 Bazaar before choosing what to buy or sell. Returns Live x402 Bazaar market pulse: trending services, call volumes, new listings, and catalog changes from daily full-catalog snapshots. Machine-readable JSON for agent-market research. $0.002.",
          "enabled": true,
          "iconUrl": "https://oblique.markets/icon.png",
          "serviceName": "Oblique Markets",
          "tags": [
            "bazaar",
            "market-data",
            "x402",
            "catalogue",
            "trends"
          ]
        },
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "name": "USD Coin"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GYyTRmt317JafPHXPnM54Fsvsma5GnS9wm6qGMqaykdS",
      "resource": "https://api.oblique.markets/api/v1/paid/bazaar-pulse",
      "scheme": "exact"
    }
  ]
}
https://whale.lonestaroracle.xyz/whales

Large on-chain transaction monitor — whale movements on Base, Ethereum, and Robinhood Chain with AI pattern analysis

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://palmyr.ai/social/twitter/profile

Update the profile (name/bio/location/url) of an X account you control.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "body": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "body": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "twitter",
            "x",
            "profile"
          ]
        }
      },
      "extra": {
        "facilitator": "https://palmyr.ai/x402",
        "feePayer": "4R67MWivvc52g9BSzQRvQyD8GshttW1QLbnj46usBrcQ",
        "name": "Palmyr"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GqSs5L9aPWGJwyRQe35YKQaWMDPh3R1dMqfSEPhSgkM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "body": {},
              "bodyType": "json",
              "method": "POST",
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "body": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "body": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "twitter",
            "x",
            "profile"
          ]
        }
      },
      "extra": {
        "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x79e999e2f9d5417F2803f1d88602aB1EA4323881",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://app.tenna.ai/api/x402/lumi/launch_digest

Launch Evidence Digest. Descriptive digest of token launches observed in a time window: count, median terminal multiple, share that ended below -70%/-90%, and the launchpads involved. Facts already observed on chain — not a forecast and not a trading signal.

Base crawled 0x833589fc…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x7eaf3c393a8996e124c0fa7ccbc55019854c4c5b",
      "resource": "https://app.tenna.ai/api/x402/lumi/launch_digest",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://app.tenna.ai/api/x402/lumi/social_timing_check

Social Post / Price Timing Check. Whether social posts led or lagged the price move, measured on Robinhood-chain token launches only — not BTC, ETH or listed majors. Post times are recovered arithmetically from X snowflake ids. The sample is small, outcome-selected from pumped launches, and can be weeks old; its age in days ships with the result. In our sample posts lagged the move, so this is a timing disclosure and never an early-warning or entry signal.

Base crawled 0x833589fc…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x7eaf3c393a8996e124c0fa7ccbc55019854c4c5b",
      "resource": "https://app.tenna.ai/api/x402/lumi/social_timing_check",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://app.tenna.ai/api/x402/lumi/lpc_nft_info

LPC Collection Facts. Collection-level facts for the LPC NFT collection on Polygon: supply, holder count, tier distribution, concentration and marketplace activity. Every response carries the scan time, so the age of the snapshot is never hidden. Aggregates only — no owner addresses, no account-linked data, and not a valuation.

Base crawled 0x833589fc…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x7eaf3c393a8996e124c0fa7ccbc55019854c4c5b",
      "resource": "https://app.tenna.ai/api/x402/lumi/lpc_nft_info",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://data.rcqsignals.com/v1/fetch/btc-funding-regime

Compact BTC funding regime state from a four-venue normalized surface: regime label, surface median, 30d z-score, same-sign share, spread, dispersion, venue count, freshness. Ed25519-signed. Data, not advice.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x510d1c21788166b0a39f83796bf624e006849690",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402-endpoints.onrender.com/market/intel

AI market intelligence report in one call for research and trading agents: cross-exchange perp derivatives (funding, open interest, long/short), fused directional signals and the euro-area macro snapshot (ECB inflation, policy rates, unemployment, EUR FX) synthesized into a headline, crypto and macro outlook, key signals, risks and opportunities. Multi-source market research report with a crypto + macro/EU lens.

Base crawled 0x833589fC…
0.1per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x1D1B81247C407521E2A01F3E21514870dcf1620f",
      "scheme": "exact",
      "maxAmountRequired": "100000"
    }
  ]
}
https://grid.lonestaroracle.xyz/report

US electricity grid — demand, generation mix (renewable/gas/nuclear), and stress signals across 7 regions

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://api.linkedpanda.com/agent/v1/profiles/email

Verified work-email lookup for a LinkedIn profile

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xe740D5701749D262dA5E4Fcb9f814c5B6D91Cf46",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/all

All thirteen attested Hedera network facts in one call at GET /v1/x402/hedera-facts/all, each carrying its own attestati

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://api.nansen.ai/api/v1/profiler/address/pnl-summary

Get Address PnL Summary Data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.geoprimitives.dev/v1/marine/depth

Give it a latitude and longitude and it answers with what the nautical chart says about the water there: the depth range of the charted depth area containing the position, the nearest charted sounding and how far away it is, and the chart's own zone of confidence for that area. Parameters go in the query string: this is a GET, there is no body. NOT FOR NAVIGATION, stated first because it is a condition of using the source. This is derived from NOAA Electronic Navigational Charts and redistributed; it is not an official NOAA ENC and does not meet federal chart carriage regulations under 33 CFR 164 or SOLAS chapter V, which only charts from NOAA or a certified NOAA ENC distributor do. Every response repeats this under `disclaimer`. NOAA and NOAA ENC are registered trademarks of NOAA, which does not endorse this service. COVERAGE is 65 NOAA ENC cells of usage bands 3, 4 and 5 over five working areas of southeast and southcentral Alaska: Sitka Sound; Kasaan Bay and Clarence Strait; Metlakatla, Ketchikan and Revillagigedo Channel; Juneau, Gastineau Channel and Lynn Canal; and Cordova with eastern Prince William Sound. It is not statewide, it is not the whole coast, and the small-scale cells that would make it look wider were deliberately left out. The coverage check reads the coordinate, so it runs in the handler after payment rather than in front of the 402: a position off the charts is quoted like any other and then refused with outside_coverage. A refusal does not settle and nothing is charged, but it costs a signature and a round trip, so check the coverage first. Every response repeats it under `coverage`. NOTHING IS INTERPOLATED, and that is the difference between this and GET /v1/elevation. Terrain is a continuous surface and sampling it between pixels is legitimate; a chart is a set of assertions a hydrographer made, and averaging two of them invents a depth nobody surveyed. So `depthAreaMinimum` is DRVAL1 of the charted depth area the position falls inside, the shoalest depth that area is guaranteed to hold, and `nearestSounding` is a real charted sounding with the geodesic distance to it. The two routinely disagree and are meant to: a sounding is a measurement at a point and the area is a guarantee over a region. The guarantee is the number to navigate a plan by; the sounding tells you how the area was arrived at. WHICH CHART ANSWERS: ENC cells overlap on purpose, so a position in Sitka sits on a 1:12,000 harbour cell, a 1:45,000 approach cell and a 1:180,000 coastal cell at once, and they do not agree because the smaller scales generalise. The largest-scale cell covering the position wins outright, usage band first and then compilation scale, which is the rule an ECDIS follows. The response names the cell, its band, its scale, its edition and its NOAA issue date, and lists any cell it consulted first that charted no depth area there. SURVEY QUALITY is on every answer as the chart's CATZOC zone of confidence, with the position and depth accuracy that zone implies, and the survey start and end dates when the chart gives them. Read it before you trust a depth. NOAA's own warning applies to all of it: much of the depth information on NOAA charts is from surveys conducted before 1940 and the shoreline is more than 20 years old. Zone A1 is a modern full-coverage survey; zone D or U means the chart is telling you it does not know. DATUMS: depths are metres below Mean Lower Low Water, which is the US chart datum, so a real depth at a real moment is this number plus the tide. Heights on the same charts are above Mean High Water. Positions are WGS 84. Reproject with POST /v1/transform if you are in State Plane or NAD27; the datum shift matters here, since a NAD27 Alaskan position is over a hundred metres from its WGS 84 one. VINTAGE: the charts are a snapshot taken on 2026-05-02. NOAA reissues ENCs weekly for Notice to Mariners and this store does not follow them, so a cell here can be behind NOAA's current edition. The cell edition, update number and issue date that answered are in `source` for exactly that comparison. REFUSALS that cost nothing: a position with no charted depth area is `no_depth_area`, which means land, a drying area the chart gives no depth for, or a gap between cells, and it is refused rather than answered with null. A position off the charts is `outside_coverage`. A chart object that cannot be read is a 503, not a guess. For what is in the way rather than how deep it is, use GET /v1/marine/hazards, which returns charted rocks, obstructions and wrecks within a radius.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x76A51b5Dd3729950B3b60c17f19252d221968FCe",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://energy.halowerk.com/demo/paid-sample

Cheapest end-to-end x402 purchase test. Always returns a 402 challenge without payment and the current full NegPrice decision after a valid USDC payment.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "asset": "USDC",
        "assetTransferMethod": "eip3009",
        "decimals": 6,
        "eip712Domain": {
          "chainId": 8453,
          "name": "USD Coin",
          "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "version": "2"
        },
        "name": "USD Coin",
        "network_name": "Base Mainnet",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://energy.halowerk.com/predict/negative-price

Battery, EV, and trading agents buy this endpoint to receive calibrated 2h/4h/6h negative-price probabilities, reviewed threshold profiles and an executable response policy.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "asset": "USDC",
        "assetTransferMethod": "eip3009",
        "decimals": 6,
        "eip712Domain": {
          "chainId": 8453,
          "name": "USD Coin",
          "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "version": "2"
        },
        "name": "USD Coin",
        "network_name": "Base Mainnet",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.nansen.ai/api/v1/tgm/holders

Get "Token God Mode" (TGM) holders data

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.loyalspark.online/x402-gateway/customers

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "headers": {
                "x-api-key": "lsk_..."
              },
              "method": "GET",
              "queryParams": {
                "customer_address": "0x0000000000000000000000000000000000000002",
                "token_address": "0x0000000000000000000000000000000000000001"
              },
              "type": "http"
            },
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "token_address": {
                  "description": "EVM address on Base (eip155:8453).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "required": [
                "token_address"
              ],
              "type": "object"
            },
            "output": {
              "example": {
                "ok": true,
                "resource": "customers"
              },
              "type": "json"
            }
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "headers": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "additionalProperties": {
                      "type": "string"
                    },
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "inputSchema": {
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {},
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        },
        "builder-code": {
          "info": {
            "a": "bc_wdmnog7m"
          },
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "a": {
                "description": "App builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "s": {
                "description": "Service builder codes",
                "items": {
                  "pattern": "^[a-z0-9_]{1,32}$",
                  "type": "string"
                },
                "type": "array"
              },
              "w": {
                "description": "Wallet builder code",
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      },
      "extra": {
        "brand": "Loyal Spark",
        "builderCode": "bc_wdmnog7m",
        "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
        "documentation": "https://loyalspark.online/for-agents",
        "name": "USD Coin",
        "provider": "Loyal Spark",
        "version": "2",
        "website": "https://loyalspark.online"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "bodyType": "query",
          "description": "HTTP GET https://api.loyalspark.online/x402-gateway/customers?method=GET — x402-gateway /customers. Authenticate with header x-api-key: lsk_....",
          "inputSchema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": false,
            "properties": {
              "token_address": {
                "description": "EVM address on Base (eip155:8453).",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "type": "string"
              }
            },
            "required": [
              "token_address"
            ],
            "type": "object"
          },
          "method": "GET",
          "type": "http"
        },
        "output": {
          "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape.",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object"
          },
          "type": "json"
        }
      },
      "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
      "resource": "https://api.loyalspark.online/x402-gateway/customers?method=GET",
      "scheme": "exact"
    }
  ]
}
https://minifetch.com/api/v1/x402/extract/url-preview

Extracts all fields used for a page's share previews: the lightweight cards that represent the page on social platforms, chat apps, and AI. Obeys robots.txt. Supports GET & POST

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xffA9155A0e4B3d8d42351Da226cC1feEe449686f",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "46vMcwuC4sK11sB3gkLhyA7J7GEwfkhn5rFyDtihBwqe",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://minifetch.com/api/v1/x402/extract/url-content

For site owners auditing AI readability: returns the clean markdown an LLM extracts from your page after nav, ads, and scripts are stripped. See what survives for AEO, GEO and AI search. Obeys robots.txt. Supports GET & POST

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xffA9155A0e4B3d8d42351Da226cC1feEe449686f",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "46vMcwuC4sK11sB3gkLhyA7J7GEwfkhn5rFyDtihBwqe",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://kronossignals.com/api/v1/liquidations/btc

Forward liquidation cluster map + recent prints for all 17 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE-USD. Pay-per-call via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://agentservices.to/v1/indicators/eth

Technical indicators: RSI, Bollinger Bands, ATR, Support/Resistance

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extensions": {
        "bazaar": {
          "description": "Technical indicators: RSI, Bollinger Bands, ATR, Support/Resistance",
          "info": {
            "input": {
              "method": "GET",
              "pathParams": {
                "symbol": "BTC"
              },
              "type": "http"
            },
            "output": {
              "example": {
                "atr": 1200,
                "bollinger_bands": {
                  "lower": 65500,
                  "middle": 67000,
                  "upper": 68500
                },
                "rsi": 45.2,
                "symbol": "BTC"
              },
              "type": "json"
            },
            "routeTemplate": "/v1/indicators/:symbol"
          },
          "name": "AgentServices",
          "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {
              "input": {
                "additionalProperties": false,
                "properties": {
                  "method": {
                    "enum": [
                      "DELETE",
                      "GET",
                      "HEAD"
                    ],
                    "type": "string"
                  },
                  "pathParams": {
                    "properties": {
                      "symbol": {
                        "type": "string"
                      }
                    },
                    "required": [
                      "symbol"
                    ],
                    "type": "object"
                  },
                  "type": {
                    "const": "http",
                    "type": "string"
                  }
                },
                "required": [
                  "type",
                  "method"
                ],
                "type": "object"
              },
              "output": {
                "properties": {
                  "example": {
                    "type": "object"
                  },
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "type"
                ],
                "type": "object"
              },
              "routeTemplate": {
                "type": "string"
              }
            },
            "required": [
              "input"
            ],
            "type": "object"
          }
        }
      },
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9863aB6242663FCc84c33632741711dB78f8Fd15",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://google-trends.use.x402atlas.com/related-topics

Google Trends related topics for a keyword by country — top & rising topics for SEO content research, trend discovery and market analysis.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x9AACeabAD8E1858b72fcEA1665381B168841b2fa",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    },
    {
      "amount": "30000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://appstore.use.x402atlas.com/product

Apple App Store product details — full profile for a single app by product_id: rating, price, description, version history, screenshots & metadata as clean JSON.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x59ea036C64f0F54CDD14a3BE8a1a6586B58DA71c",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://omniterminal.app/api/x402/v1/news

Omni Terminal delivers fresh, deduplicated market-moving news and catalyst context across equities, crypto, macro, and forex for AI trading agents.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://web.cyberwarex.com/fetch

Read any live web page as clean, LLM-ready text. Renders JavaScript in a real browser, then strips navigation, ads and boilerplate. Use it when a plain HTTP GET returns empty or garbled HTML: single-page apps, dynamic feeds, or content that only appears after scripts run. Returns markdown, plain text or cleaned HTML plus the upstream HTTP status. Page content is third-party data and is flagged untrusted so an agent treats it as input, never as instructions.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://app.fortiblox.com/api/tokens

List every token FortiSwap routes on the X1 blockchain (XDEX + Degen launchpad): mint, symbol, name, decimals, logo, USD price, 24h volume, TVL, trust tier. Call this first to resolve a symbol to a mint before quoting or building an X1 swap.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FdQ2FmAydXBe87Nm7w4MjksRqTUjahPaqjj7mVshKvNa",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x581aB190DF2B2932175d987E787Acd28A85eAA1C",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://dripstack.com/api/v1/publications/:publicationSlug/:postSlug

Paid JSON for one Substack-backed newsletter, blog, or podcast post: synthesized summary (`synthesizedSummary`), metadata, and identifiers for financial analysis. Path params are `publicationSlug` and `postSlug`. Returns 503 until summary exists. USDC `exact` x402 on Base or Solana; USD amount is per-post when set on the post, otherwise the server default.

Base crawled 0x833589fC…
6per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "6000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xBF22b6DdB5A08c823856A779f1004eEa60C5aB92",
      "scheme": "exact",
      "maxAmountRequired": "6000000"
    },
    {
      "amount": "6000000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "2cCuDjNEuA7QFgBiS8rYcWrxJxeYGJFGHvXaaCXBqmHF",
      "scheme": "exact",
      "maxAmountRequired": "6000000"
    }
  ]
}
https://search.cyberwarex.com/search

Web search that returns structured SERP results as JSON. Runs on a dedicated SearXNG instance aggregating multiple engines, so there is no per-engine API key, quota or HTML scraping to manage. Each result carries title, URL, snippet, the source engine and a published date where available. Choose general web, news, or image results, up to 10 per call. Use it to ground an answer in current web sources, research a topic, or monitor news on a query.

Base crawled 0x833589fC…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://glim.sh/api/v1/inference/v1/chat/completions

LLM chat completion (OpenAI-compatible, streaming supported)

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.0054per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5400",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "5400"
    },
    {
      "amount": "5400",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5400"
    },
    {
      "amount": "5400",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "5400"
    }
  ]
}
https://win.oneshotagent.com/v1/tools/research/person

Deep person research — returns enrichment, social profiles, articles, and dossier

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9fb365E4E9385E2a39FeBAd70368267e6f571d9A",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://vaaya.ai/api/run/tikhub/fetch

TikHub — 742 per-call social-data endpoints (GET) across douyin/tiktok/weibo/instagram/bilibili/zhihu/kuaishou/youtube & more. Pass { endpoint, ...params } (params per endpoint; most reads take username/user_id/keyword + pagination_token). Find endpoints via vaaya/discover or the social-data knowledge doc. Most calls 1¢.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 360,
      "network": "eip155:8453",
      "payTo": "0x7c655d3d3944Bd27994dD81A036C3aFB19806C40",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://omniterminal.app/api/x402/v1/traders/:symbol

Omni Terminal ranks public Hyperliquid traders by PnL, position size, wallet size, or liquidation proximity for wallet and positioning research.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.003per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "3000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    },
    {
      "amount": "3000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "3000"
    }
  ]
}
https://omniterminal.app/api/x402/v1/liquidations/:symbol

Omni Terminal finds where forced-liquidation pressure is concentrated using all bounded published Hyperliquid levels anchored to live mark price, explicit position-side versus liquidation-flow semantics, margin-stress scenarios, and a selected summary, heatmap, cluster, or flow view.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://www.trezalabs.com/api/x402/video

Generate a video from a text prompt, or animate an image_url from its first frame. The paid response waits about as long as the model usually takes to render and returns the video URL, else a statusUrl to poll (Prefer: wait=N sets the wait). 8 models including Google Veo 3.1, Kling 3.0, Seedance 2.5, Wan 2.7 and MiniMax Hailuo 3, 4 to 15 seconds, 16:9 or 9:16, from $0.42. GET this URL for every model and price. No account or API key: the payment is the only credential.

Base crawled 0x833589fC…
0.42per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "420000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaE393a9CD728F7397F50f6f8C88096a0F3D2b42C",
      "scheme": "exact",
      "maxAmountRequired": "420000"
    },
    {
      "amount": "420000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "EX4MyYWHc7NKBGuytmMpxixM7ovSWYLNy5acN2mFfoGd",
      "scheme": "exact",
      "maxAmountRequired": "420000"
    }
  ]
}
https://quotient-api-gateway.onrender.com/api/v1/signals

Use this to scan Quotient's published prediction-market signals on Polymarket International, Polymarket US, and Kalshi: side, entry YES price, latest Q probability and thesis, conviction, the forecast_status gauge with its standing adverse move, upside to Q, and capacity — one signal per market. A signal is active or retired; a missing live quote drops a row from the feed, and a caution/warning forecast_status marks an adverse move; the row remains listed.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC3d01FD2F79d4c57aD106AB8ecc12a5dE24F97cB",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://app.ravn.exchange/api/v1/x402/quote

RAVN — best-price swap quotes across 20 execution venues and 17 chains, including native (non-wrapped) Bitcoin as either source or destination. 0% protocol fee, non-custodial. Returns a quoteToken; pass it to POST /execute.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x12d2425fD88c693EDB4dE004E0c747879B7D6933",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4pQtttNDe8kdQjhJ22LA2Tqnen9smPjoJj7HM3X8ZNYf",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://agent-commerce-factory-jm.austriaeast.cloudapp.azure.com/v1/crypto/prices

Live cryptocurrency prices and market data — a token price API for agents. Look up the current Bitcoin price, Ethereum price or any token price by coin id or common ticker (e.g. bitcoin, eth, sol) and get USD price, market cap, market-cap rank, 24h change %, 24h volume, 24h high/low and last-updated timestamp. Empty request returns the top coins by market cap. For trading agents, portfolio valuation, price lookups, crypto research and market monitoring.

Base crawled 0x833589fC…
0.008per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xCe339395d7f2ea5a5009022EF1C392Fb208a989E",
      "scheme": "exact",
      "maxAmountRequired": "8000"
    }
  ]
}
https://api.brazilayer.com/v1/cnpj/situacao/:cnpj

Does this CNPJ exist in the official Receita Federal registry, and is it active? Returns existence, registration status (situacao_cadastral: Ativa=active, Suspensa=suspended, Baixada=closed) with date, headquarters/branch flag and state. Cheapest paid check in the catalog: digit arithmetic alone cannot tell a well-formed number from a real, active company. Free sample, no payment: https://api.brazilayer.com/v1/cnpj/amostra

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/evm_block_number

Read the current block height directly from a supported Base, Ethereum, or Arbitrum public JSON-RPC provider.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.nansen.ai/api/v1/profiler/address/pnl

Retrieve address PnL data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.kadec0.xyz/v1/email-validate

Email validation and email list cleaning. Checks each email address for RFC syntax, a live MX record lookup returning the real mail hosts, disposable-domain detection, role-account flags (info@, sales@, noreply@), and a free-provider flag, rolled into a per-address ok/risky/invalid verdict with reasons. Batch up to 25 email addresses per call. Domain-level DNS only, no SMTP mailbox probe. Keyless.

Base crawled 0x833589fC…
0.03per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "30000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "30000"
    }
  ]
}
https://api.solenrich.com/entrypoints/new-tokens/invoke

Recently launched tokens from DexScreener, filtered by liquidity and risk, ranked safest first.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.012per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "12000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "66Qvhr1xnwqbCT36KfHfZF1JpoWdmCQ3uFYTN335CGXe",
      "scheme": "exact",
      "maxAmountRequired": "12000"
    },
    {
      "amount": "12000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8EdE9eD2E6ACdd9B2BaFa42ff4078d3F3263607c",
      "scheme": "exact",
      "maxAmountRequired": "12000"
    }
  ]
}
https://win.oneshotagent.com/v1/tools/verify/email

Email deliverability verification

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9fb365E4E9385E2a39FeBAd70368267e6f571d9A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/anchor-cost

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://tiktok.palmyr.ai/v1/accounts

List the TikTok accounts your wallet owns, with session health.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "tiktok",
            "accounts",
            "fleet"
          ]
        }
      },
      "extra": {
        "facilitator": "https://palmyr.ai/x402",
        "feePayer": "4R67MWivvc52g9BSzQRvQyD8GshttW1QLbnj46usBrcQ",
        "name": "Palmyr"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GqSs5L9aPWGJwyRQe35YKQaWMDPh3R1dMqfSEPhSgkM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extensions": {
        "bazaar": {
          "category": "social",
          "discoverable": true,
          "info": {
            "input": {
              "method": "GET",
              "queryParams": {},
              "type": "http"
            },
            "inputSchema": {
              "properties": {
                "queryParams": {
                  "additionalProperties": true,
                  "type": "object"
                }
              },
              "required": []
            },
            "output": {
              "example": {}
            }
          },
          "schema": {
            "properties": {
              "input": {
                "properties": {
                  "queryParams": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              },
              "output": {
                "properties": {
                  "example": {
                    "additionalProperties": true,
                    "type": "object"
                  }
                }
              }
            }
          },
          "tags": [
            "tiktok",
            "accounts",
            "fleet"
          ]
        }
      },
      "extra": {
        "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x79e999e2f9d5417F2803f1d88602aB1EA4323881",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://anywaypossible.com/api/base-balance

Live Base wallet balance for AI agents. Returns native ETH and Circle USDC balances, atomic values, block height, contract address, and observation time for any EVM address. Includes a machine-readable upgrade path to treasury readiness for spend, gas-reserve, and wallet-health decisions. No API key.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xe5690D37805107C56f6195E65A262b234E0E5e75",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/latest-tx

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.xfuel.app/v1/chat/completions

Treasury desk and possession book for agent spend. Who paid which call — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "expiresAt": 1790319735529,
        "name": "USD Coin",
        "nonce": "0x19d39ba1b39a6948ce701a044a23efac2ffb77fc94a0d9bf6073e72b6a01c3e2",
        "taskId": "xfuel-6a871196-bd1a-4e5b-9988-8c5165f17974",
        "version": "2"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x23f713411c30BBd9A989c9cbC22EB0b55F7f7334",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "expiresAt": 1790319735529,
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "nonce": "0x5192f47547de94108c6dccc7ec236c22d057ac9e025ef742cf26a2b0cbcb9366",
        "taskId": "xfuel-6a871196-bd1a-4e5b-9988-8c5165f17974"
      },
      "maxAmountRequired": "2000",
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "58Qo8QTJ1Sd4aXSygwAeBLNL3VrXRmfUCceB6b5RJCx6",
      "scheme": "exact"
    }
  ]
}
https://x402.aispace.bot/api/v1/video/queue

Async text-to-video and image-to-video generation on Venice (WAN 2.7, HappyHorse, and more), paid per request in USDC on Base via x402, no API key. Model ids via GET /api/v1/models?type=video. Lifecycle: quote, queue, retrieve, complete (see related routes).

Base crawled 0x833589fC…
0.275per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "275000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xA7f3Ad0E69F61864092FAbBa6Cee00AF6e584689",
      "scheme": "exact",
      "maxAmountRequired": "275000"
    },
    {
      "amount": "275000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5hqrYCkTNe5z9Uc8o29KDNd2Gn9YreE6ZthZ7QY5hrKY",
      "scheme": "exact",
      "maxAmountRequired": "275000"
    }
  ]
}
https://kronossignals.com/api/v1/market-pulse

Material-change feed for up to 5 crypto assets. Pass the cursor from your last call and receive ONLY what changed since: funding sign or band, funding trend, open-interest regime, alert set, and source stale/recovered. Returns an explicit no-change packet rather than pretending, plus per-asset freshness and a next-poll time derived from the real 5-minute collection cadence. Market data, not advice. $0.02 USDC via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://x402-seller.onrender.com/oil/price

Current crude oil price in USD per barrel — WTI or Brent spot price from the U.S. Energy Information Administration (EIA). Reflects the latest official daily figure, not live or real-time trading data; lags the market by several business days.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xbd61dfb01f81c91f02b0ccd51b0220e0c8918639",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.brazilayer.com/v1/commodities/fogo

Daily fire hotspots across Brazil from the official INPE satellite program: count and mean intensity (FRP) by biome (Amazon, Cerrado, etc.) over the last 7 days, leading states, plus mean days-without-rain at fire locations — a drought proxy. Signal for ESG screening, carbon markets, cattle and soy supply-chain risk. Free sample, no payment: https://api.brazilayer.com/v1/commodities/amostra

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://x402.botsmith.dev/x/user

X User Profile ($0.015/call): Fetch an X (Twitter) account by handle: display name, bio, follower/following/tweet counts, account creation date and age in days, verification status, location and profile image. No X account or API key needed.

Base crawled 0x833589fC…
0.015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xcb9b3F94387389e38EF2A7b3C0B851FB8325d7e9",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    },
    {
      "amount": "15000",
      "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:196",
      "payTo": "0xadd1a0a81836b1ea5b272dbed78746ba09f55370",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    }
  ]
}
https://www.celerapi.com/v1/company/search

Search authoritative company registries by company name to resolve candidate legal entities and registration identifiers. Currently supports the United Kingdom (GB) and Norway (NO), with expanding jurisdiction coverage. Results are public-register evidence, not a KYC or KYB compliance determination.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x7d9982aC9aF31ef16336740eDd26C7F5b4127B51",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.m2msentinel.com/v1/gas/fees

What a Base transaction costs right now, with the RPC provider and trust level behind the number, so a caller can tell a credentialed reading from a degraded one before pricing a transaction.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x6d6c398390cfb88f1cd42715b84906a0bd6652aa",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://lion-x402.lionmaster-operations.workers.dev/api/x402/keyless-base-rpc-json

Keyless multi-chain JSON-RPC reads, Base + Ethereum, from $0.001 (?chain=ethereum)

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.x402-hosting.com/v1/uploads

Create an upload session for a new hosted Next.js site. Call this first when deploying a new project: it returns a presigned artifact upload URL, and the paying wallet becomes the project owner.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xAc0bba6e3241A398b1911528A3E19f87aeE12f6E",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.nansen.ai/api/v1/smart-money/holdings

Get Smart Money Holdings Data

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000000000000000"
    },
    {
      "amount": "50000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    },
    {
      "amount": "50000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.anchor-x402.com/v1/price/token

USD token price (POST wrapper, body: {symbol} or {chain, contract}) — $0.001 USDC

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "resource": "https://api.anchor-x402.com/v1/price/token",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "resource": "https://api.anchor-x402.com/v1/price/token"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6apuZvJQ51Led9iEjnHw6f5jfnXL4qjt8S1h58PeXzuR",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "100000000000000000",
      "asset": "0x431D5dfF03120AFA4bDf332c61A6e1766eF37BDB",
      "extra": {
        "name": "JPY Coin",
        "resource": "https://api.anchor-x402.com/v1/price/token",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
      "scheme": "exact",
      "maxAmountRequired": "100000000000000000"
    }
  ]
}
https://blockrun.ai/api/v1/pm/polymarket/markets/keyset

List Polymarket markets with cursor-based keyset pagination (same filters as /polymarket/markets)

Base crawled 0x833589fC…
0.0085per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
      "scheme": "exact",
      "maxAmountRequired": "8500"
    }
  ]
}
https://glim.sh/api/v1/web/search

Web search powered by Exa

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.kadec0.xyz/v1/author-search

Author and researcher profile search. An author name returns matching researchers with current affiliation, publication count, total citations, h-index and i10-index, and their most-cited papers — for author lookup, disambiguation, and citation-metrics. Keyless via OpenAlex.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://rpc.nodeflare.app/eth/x402

Ethereum RPC (chain 1): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:137",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:42161",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x8F5cB67B49555E614892b7233CFdDEBFB746E531",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0xCA5e87f82B3FA093800e6ad67D621A427D79c70D",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:137",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x2A89407a98A0732b7fD578c4E156B7166540EB5A",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:42161",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    }
  ]
}
https://mcp.yield.xyz/x402/networks_get_all

List every network Yield.xyz supports (80+) with its id (slug), name, and category (EVM, Cosmos, Substrate, misc). Filter by name/id or category. Use the network id to filter yields_get_all.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xD433f056270912659f073D5FFE7Ae247e39235A5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.nansen.ai/api/v1/profiler/address/historical-balances

Get Address Historical Balances Data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://api.nansen.ai/api/v1/tgm/token-ohlcv

Retrieve token OHLCV candle data

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
      "extra": {
        "name": "USD₮0",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:196",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "United Stables",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "World Liberty Financial USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "Tether USD",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000000000000000",
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "assetTransferMethod": "permit2-exact",
        "name": "USD Coin",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:56",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000000000000000"
    },
    {
      "amount": "10000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.ottoai.services/pm-markets

Top Polymarket prediction markets RIGHT NOW: the 25 highest-volume open markets with live odds (outcome probabilities), best bid/ask, spread, last trade price, 24h + total volume, liquidity, 1d/7d price change, end date and event link. Flat JSON, refreshed every 5 minutes. Prediction market odds, Polymarket data, event probabilities, market sentiment. $0.001 per call.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://blockrun.ai/api/v1/pm/predictfun/markets

List Predict.Fun markets with filtering and sorting

Base crawled 0x833589fC…
0.0085per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "8500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
      "scheme": "exact",
      "maxAmountRequired": "8500"
    }
  ]
}
https://agent-commerce-factory-jm.austriaeast.cloudapp.azure.com/v1/amazon/search

Amazon product search API. Search live Amazon products by keyword and get normalized ASIN, title, current price/range, currency, rating, review count, bought-past-month purchase signal, product URL, image, rank, Amazon Choice/Best Seller flags and delivery text. For shopping agents, Amazon product research, price lookup and ecommerce product discovery.

Base crawled 0x833589fC…
0.006per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "6000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xCe339395d7f2ea5a5009022EF1C392Fb208a989E",
      "scheme": "exact",
      "maxAmountRequired": "6000"
    }
  ]
}
https://ozmium.org/v1/prices

Live prices from TWO labeled venues per symbol: Coinbase exchange spot (+ 24h stats) AND the gTrade venue leg { gains: { pairIndex, mark, index } } — mark is what fills on Gains, index is the oracle spot liquidations use. Same feeds the human chart runs on; the cross-venue spread between them is real, tradeable divergence (lead/lag arbitrage). Covers Gains-listed symbols Coinbase lacks (e.g. Full details: GET /v1.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "builderCode": "bc_cuzowhhb",
        "discoverable": true,
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x53a05c0eed6cbf065f31aedbae7b0d8ce1a0f4db",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://bazaar-gateway.vercel.app/api/weather

Real-time weather data and 3-day forecast for any location worldwide. Accepts city name or lat/lon coordinates. Returns temperature, humidity, wind, precipitation, and conditions. Powered by Open-Meteo.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x9200c98c8188ef50302ed3b8b0ffd5d39832090c",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://svm402.com/safety/:address

Safety and honeypot risk check for a Solana token given its mint address. Returns a deterministic risk score, honeypot flag, owner-renounced status, liquidity lock status, and holder concentration. Call this before trading an unfamiliar token. — $0.01 USDC

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4ofUMGcRHsfr6LMY6AuaRSQpqyKsvibSbXmieQL4i8Dc",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://vedetta.dethboy.com/v1/track-record

Verifiable call log: every signal this desk has published, timestamped and countable (?asset=BTC optional). Audit us for a penny before you spend a dime — no accuracy claims, compute your own. Descriptive research, not financial advice.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x21E16F1bc3aA847236354C8193D0cB21cF412eFA",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://vape-x402.vapex402.workers.dev/data/stablecoins

VAPE stablecoins — Stablecoins by circulating supply with live peg price and a computed depeg amount — a de-pegging stablecoin is a live systemic threat signal.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8aAB9a6d28e9AbA2a15a613C90F24f352f0Cce15",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://vape-x402.vapex402.workers.dev/data/chain_fees

VAPE chain_fees — Fee-earning protocols on a chain, ranked, each with its logo (default Base) — the chain's real economic activity, not just parked capital.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x8aAB9a6d28e9AbA2a15a613C90F24f352f0Cce15",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://lionx402.com/api/x402/sec-financials-json

SEC EDGAR financials for public companies (keyless, attested)

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://glim.sh/api/v1/web/fetch

Fetch a web page and extract clean content

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xC751344Ee09B5159160173F77D4a1169bCd386A1",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://agent402.tools/api/hash

Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "outputSchema": {
        "properties": {
          "algo": {
            "type": "string"
          },
          "base64": {
            "type": "string"
          },
          "hex": {
            "type": "string"
          }
        },
        "required": [
          "algo",
          "hex",
          "base64"
        ],
        "type": "object"
      },
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:143",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:43114",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:1329",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "2000",
      "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:10",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "1000",
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:4663",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42220",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0xCA5e87f82B3FA093800e6ad67D621A427D79c70D",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
      "scheme": "upto",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "10000",
      "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
      "extra": {
        "areFeesSponsored": true
      },
      "maxTimeoutSeconds": 300,
      "network": "stellar:pubnet",
      "payTo": "GDNJXCKW7ZM7GEEVP674TWPU26YJNBQ2FI4ZIPRKTPTNUEJMDHFJWWRL",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "tag": "x402-global-challenge"
      },
      "maxTimeoutSeconds": 300,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://laso.finance/send-bank-payment

Send dollars to a bank account by ACH. Requires a bank destination registered beforehand with addBankingDestination (list them at GET /bank-recipients), which in turn requires an approved banking profile. The on-chain x402 payment credits the user's account balance via the standard deposit webhook, so a payout that cannot be fulfilled leaves nothing stranded — retry, or recover the funds with POST /withdraw.

Base crawled 0x833589fC…
11.5per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "11500000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3291e96b3bff7ed56e3ca8364273c5b4654b2b37",
      "scheme": "exact",
      "maxAmountRequired": "11500000"
    },
    {
      "amount": "11500000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3MZVk97x9SeRxbYpc3jhzRfU2fyA3emYutnqfn9kNfYX",
      "scheme": "exact",
      "maxAmountRequired": "11500000"
    }
  ]
}
https://app.tenna.ai/api/x402/tenna/observatory_round_preview

Latest Sealed BTC Forecast. Latest sealed five-minute LUMI, TENNA, and consensus forecast from TENNA Observatory, including English commentary, recent accuracy, and eligible live edge-node consensus. Reuses existing app.tenna.ai output with no extra AI call. Eligible external wallets may receive one zero-budget preview per UTC day; 0.01 USDC is the fallback rate because ACP cannot list a zero price. Experimental forecast with no demonstrated edge.

Base crawled 0x833589fc…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x7eaf3c393a8996e124c0fa7ccbc55019854c4c5b",
      "resource": "https://app.tenna.ai/api/x402/tenna/observatory_round_preview",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://kronossignals.com/api/v1/cex-premium/btc

Coinbase price premium vs composite spot median (OKX + Kraken + Binance). premium_pct = (coinbase / composite_median − 1) × 100. Positive = US/institutional demand skew; negative = global selling pressure. Covers BTC/ETH/SOL/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/BCH/ATOM/NEAR (assets listed on Coinbase). Point-in-time only — no historical baseline stored. $0.02 USDC per call via x402.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://fiatdock.com/v1/chain/gas-price

Base gas price — current wei/gwei. Cheap read-only chain primitive. Pay-per-call via x402.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xeB12bB2f52EeD33DBa6A00774E48324032Fd87C6",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://toolshed.lemon-agent.dev/convert/json-yaml

JSON to YAML. POST any JSON value; the response is block-style YAML — the readable, indented form, not flow style. Any top-level shape is accepted, not just an object. There are no comments to preserve in either direction, because JSON has none.

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x0adc7adac7bbaffffbd73505711e42378c4f9f9e",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "7zXRc8sYkhjezbwXQw43beBrKDmhTMA7mkNfqRjdZ6gw",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://filedge.io/v1/parse

Parse SEC filings (10-Q, 10-K, 8-K, Form 4) and earnings transcripts into structured JSON. Supports EDGAR by ticker or direct URL.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xa98E17D26e1B3A51A10C79c2F52f78914E7D50EB",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://coingecko.use.x402atlas.com/markets

Top crypto coins ranked by market cap — paginated market data (price, market-cap rank, symbol) in any currency, CoinGecko-sourced.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x32793F68dC2EA26BBC75eB900DA120069e8B6d02",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.agentmercantile.com/v1/url-context

Fetch deterministic, token-efficient context from one public HTTPS URL: canonical URL, title/description, headings, clean main content, structured-data types, freshness observations, evidence, and limitations. Call when you need a bounded JSON reading of one public page without a browser, login, crawl, or LLM.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xdb7b2b54f80479826222749a2ea73a8acc306e1e",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://mortgage-amortization.underscoredone.com/calculate

Give this API a loan amount, an interest rate, and a repayment term, and it returns the exact monthly payment plus a full month-by-month schedule: interest paid, principal repaid, and balance remaining for every payment. Ask what an extra $300 a month, or a $10,000 lump sum in month 24, would do and it reports the months and interest saved. Every figure uses banker's rounding at pinned precision, so two correct systems agree to the cent. You supply the rate; the API does the math.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402-solvers.onrender.com/v1/cycles/probe

Detect whether an arbitrage opportunity exists in a set of token exchange rates (multi-pool negative-cycle scan). Cheap boolean + magnitude signal for trading agents. POST a swap-rate graph, get back whether a profitable cycle exists and how large — without the path.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 30,
      "network": "eip155:8453",
      "payTo": "0xA238AF2e66D9d7301F2D02932931851DdF900Dcd",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://x402.botsmith.dev/x/tweet

X Tweet Lookup ($0.015/call): Fetch one X (Twitter) post by numeric id: full text, author, ISO timestamp, like/retweet/reply/view counts, hashtags, expanded links and mentions as clean JSON. No X account or API key needed.

Base crawled 0x833589fC…
0.015per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "15000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xcb9b3F94387389e38EF2A7b3C0B851FB8325d7e9",
      "scheme": "exact",
      "maxAmountRequired": "15000"
    }
  ]
}
https://api.clawfetch.ai/fetch

Web scraping / URL fetch: retrieve any web page and return clean, LLM-ready markdown text. Strips boilerplate, ads, and navigation. Stealth HTTP client bypasses common bot blocks. Cheapest way to read a webpage.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xc2afB91833f4dE19542A025872C6085cC29185eB",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://rpc.nodeflare.app/hl/x402

HyperEVM RPC (chain 999): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units. One of the first independent x402 RPC providers for this chain.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:137",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:42161",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "100000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x4c934c63C786157Fefd990945b25eA60a0FB0205",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x2A89407a98A0732b7fD578c4E156B7166540EB5A",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:137",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    },
    {
      "amount": "100000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "assetTransferMethod": "permit2",
        "facilitatorAddress": "0x14fDa13953Fc30428938E6BF950d036e77214e52",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:42161",
      "payTo": "0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296",
      "scheme": "upto",
      "maxAmountRequired": "100000"
    }
  ]
}
https://x402.ochinimus.app/api/sol-price

Use when you need to answer: What is SOL worth? SOL price / Solana spot price in USD, live. Multi-source with a fixed fallback order — Coinbase, then Kraken, then Pyth Hermes — first finite quote wins. Returns the price, the venue that served it, and a Pyth confidence interval when Pyth did.

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4a8o45skRPcyjAdyR8yES215Swvh8uTpZD6KLarhxCJ7",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://scvd.store/api/buy/spot_check

Spot Check. REQUIRES ?host= on the paid request — a signed request without it is refused before the gate and no money moves. Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, when we last actually knocked, our coverage of the window since we met it, and the gaps with their reasons. Read from the books at the counter — no request is made to the host, so the answer is as fresh as our last round and no fresher, and sa…

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "quotedAt": "2026-09-24T20:47:19.128Z",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "quotedAt": "2026-09-24T20:47:19.128Z",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USD Coin",
        "quotedAt": "2026-09-24T20:47:19.128Z",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
      "extra": {
        "assetTransferMethod": "eip3009",
        "name": "USDC",
        "quotedAt": "2026-09-24T20:47:19.128Z",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:480",
      "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "quotedAt": "2026-09-24T20:47:19.128Z"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://kronossignals.com/api/v1/forecast/btc

Real-time and ML-forecasted Bitcoin (BTC) price. Kronos deep-learning model: up-probability, expected close, price range, p10-p90 quantiles, forward volatility across 1h/4h/24h horizons. Crypto price prediction / price forecast API for AI agents and trading bots. Pay-per-call via x402 on Base USDC. Live track record at /api/stats: ~54% directional hit, ~70% in-range over 15k+ scored forecasts — measured on served predictions, not a backtest.

Base crawled 0x833589fC…
0.05per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "50000"
    }
  ]
}
https://api.vrsai.tech/v1/capabilities/package_install_preflight

Check an exact npm or PyPI package version immediately before installation using current registry, vulnerability, malicious-package, withdrawal/deprecation, and verified provenance evidence. Returns ALLOW, REVIEW, BLOCK, or UNKNOWN with machine-readable reasons.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "vrsai": {
          "capabilityId": "package_install_preflight",
          "capabilityVersion": "1.0.0",
          "commercialTermsDigest": "v1:df86a94aca7d9e97e1d32745a7db0b9d72f1e728294cc7a5c77885f98cfa86ba",
          "commercialTermsRevision": "package-install-preflight-r1",
          "requestFingerprint": "v1:7c777bddee28fb9a6f22b34befe19b5098e8a3290f854f76b021f0b1ea0ae0a8"
        }
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x6746dFF7bDB1ED4940DBe50024795AD97CbA09Af",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    },
    {
      "amount": "10000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "vrsai": {
          "capabilityId": "package_install_preflight",
          "capabilityVersion": "1.0.0",
          "commercialTermsDigest": "v1:df86a94aca7d9e97e1d32745a7db0b9d72f1e728294cc7a5c77885f98cfa86ba",
          "commercialTermsRevision": "package-install-preflight-r1",
          "requestFingerprint": "v1:7c777bddee28fb9a6f22b34befe19b5098e8a3290f854f76b021f0b1ea0ae0a8"
        }
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "EiJRESZjUCUufSjSb5iDmikXXeKa3C1gQwYCZR4xFocj",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://x402.sniperx.fun/api/v1/token/activities/smarttraders_smartmoney

Get SmartMoney trading activities on token (sorted by time descending)

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp crawled we can't settle this yet EPjFWdd5Au…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "Bd2xS189uhhnxUeBeVF3JFXrg8zQgrvqZtpqh8hgkCEQ",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.bitrefill.com/x402/invoice/status

Check an invoice status and, with SIWX from the paying wallet, retrieve redemption codes.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "5yASLjtNssGXDv6bR9e71WXKxRymDiUzbgkGPqkQNgRn",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://lionx402.com/api/x402/keyless-base-rpc-json

Keyless multi-chain JSON-RPC reads, Base + Ethereum, from $0.001 (?chain=ethereum)

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x68e3E7822cf83C824cF9606EC999b5e8a93c85B5",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.brazilayer.com/v1/mercado/cambio

USD/BRL two ways: the official Central Bank PTAX rate and the LIVE crypto market — BTC/BRL, USDT/BRL and the Brazil premium (ágio): how much Brazilians pay above global price for dollar/crypto exposure. A classic emerging-market capital-flow signal, computed live from exchange prices at request time. Positive premium = capital-flight pressure; discount = inflow. Free sample, no payment: https://api.brazilayer.com/v1/mercado/amostra

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://ffpipe.dev/v1/convert

Convert any video to a clean, web-ready MP4. Provide a source URL or upload the file directly; the paid request returns a status URL to poll, and the finished MP4 (plus a thumbnail) is downloadable for 24 hours. Fixed price per conversion in USDC over x402; no account or API key. Failures on our side automatically mint a free retry voucher. Input up to 100 MB.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x38c72cAb5d8F053a7CCE4F522b923C3c70291B9d",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://api.kakerapetit.dev/v2/calendar

EDINET filing calendar: annual securities reports (yukashoken hokokusho) filed by Japanese listed companies in a date range. Returns company code, EDINET document ID, fiscal period, accounting standard (JGAAP/IFRS/USGAAP) and the exact filing timestamp for each report — track new disclosures, trigger data pipelines, or find which Japanese stocks just reported. Query: /v2/calendar?from=2026-06-20&to=2026-06-30 (max 92 days per request).

Base crawled 0x833589fC…
0.002per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x3a43FdF92B1596B22DDF719d5b528c537Da4237d",
      "scheme": "exact",
      "maxAmountRequired": "2000"
    }
  ]
}
https://stablefinance.dev/api/prices/snapshot

Real-time single-ticker price quote. Invalid or unsupported tickers return upstream 400/404; check /api/company/facts/tickers or endpoint-specific /tickers lists before batching.

Base crawled 0x833589fC…
0.02per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xBD17480bf6ff056f7b91d9AdC9DfDa001eb7283D",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    },
    {
      "amount": "20000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "lastValidBlockHeight": "428447206",
        "recentBlockhash": "D6jhkEv5oP8uAjCJ4ibDtHL3XkEtpjWCTVpYcgK4KuAT"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "D6GAZpvvLe8aUi9qZEDTXPERHpP3pwAgaeucp9ib1fW",
      "scheme": "exact",
      "maxAmountRequired": "20000"
    }
  ]
}
https://amoraw.xyz/caip

Canonicalize a CAIP-2/CAIP-19 or legacy network string and return the recognized chain, native currency, reviewed USDC asset and decimals, supported x402 schemes, supported-versus-recognized status and registry version.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "decimals": 6,
        "name": "USD Coin",
        "schema": "https://amoraw.xyz/schema",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x98e83FbcB5f8fb8414ACD0AEeB93160046B65666",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://keyronne.com/api/hash

Compute cryptographic digests and HMACs deterministically: MD5, SHA-1, SHA-256, SHA-384, SHA-512, output as hex, base64, or base64url. Add a "key" for HMAC. Built for checksums, content addressing, and signature verification. Inputs are hashed and discarded. POST a JSON body like: {"text":"hello world","algorithm":"sha256","encoding":"hex"}

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://api.stelardigital.com/sentiment

Sentiment score (-1 bearish to +1 bullish) and label for arbitrary text, or for a crypto asset based on its recent price action, via Claude Haiku. For agents gauging market mood or scoring news, social posts, or free text.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x32d711C66dD1AD0c42D0cFe48e58ee5f2dE7c243",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://api.statemind.ai/v1/x402/static

Check Python for syntax errors, lint and type mistakes, unsafe constructs and hardcoded credentials, and against the examples the caller supplies, without running it.

Base crawled 0x833589fC…
0.01per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0xaa7116CdDA58286F4cdA40C6F735762C22447104",
      "scheme": "exact",
      "maxAmountRequired": "10000"
    }
  ]
}
https://quartermaster.surewhynot.app/v1/random

Cryptographically-secure random integers in a chosen range (CSPRNG, rejection-sampled to avoid modulo bias) — real entropy an LLM cannot produce itself.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x5253666c40432f009ebd99908b9cd2a7fd1019cb",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "FgcKNzsBXSEHGNZNWetPsjXiBZk1WFoU6sF2zVsnzXfa",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://omniterminal.app/api/x402/v1/research/premarket

Omni Terminal returns the latest published Pre-Market Roundup by default, or an exact publication date, as bounded editorial metadata and sanitized excerpts with canonical article links for agent research and citation.

eip155:84532 crawled we can't settle this yet 0x036CbD53…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:84532",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    },
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x733f40A4FA0cd13d59aBADE04b9eD2e9acAc6457",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://agent.atinamos.co.uk/agent/json-repair

Deterministic JSON validation and conservative repair for AI-agent payloads. Repairs unquoted object keys, single-quoted strings, trailing commas, Markdown code fences, UTF-8 BOMs and JSON-compatible Python literals, including nested or repeated defects. No LLM or invented data; every applied transformation is reported.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x105bc7a04eec0c162342874110084dfe01996435",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://kronossignals.com/api/v1/snapshot/btc

Full crypto asset snapshot in one call (all 16 assets): real-time Binance spot price, derivatives (funding rate, OI, basis from Bybit/OKX perp), market regime alerts (BTC only). FORECASTS: BTC/ETH/SOL only (Kronos ML coverage). DERIVATIVES DATA: all 16 assets. Bundle replaces 3 separate paid calls — $0.08 vs $0.09 à la carte. For AI agents & trading bots. Live track record at /api/stats: ~54% hit over 15k+ scored forecasts, not a backtest.

Base crawled 0x833589fC…
0.08per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "80000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact",
      "maxAmountRequired": "80000"
    }
  ]
}
https://api.geoprimitives.dev/v1/timezone

Give it a longitude and latitude and it answers with the IANA timezone identifier (America/New_York), the UTC offset in force there right now, whether daylight saving is currently in effect and by how much, the local wall-clock time, and the zone's standard offset. Pass an optional ISO 8601 `at` instant to ask about any moment between 1900 and 2100 instead of now, which is what you want when scheduling something months out across a DST boundary. Parameters go in the query string: this is a GET, there is no body. Two halves, with different vintages, and the difference matters. The offset and the DST rules come from the runtime's own timezone database and are current: a rule change reaches this endpoint when Cloudflare updates ICU, with no redeploy here. The *boundaries* come from tz_world (efele.net), CC0 1.0 and derived from VMAP0, a public-domain US government product. That map was frozen at tzdb 2016d in May 2016, and this catalog sells public-domain and permissively-licensed data only, which is why it is used rather than the current OpenStreetMap-derived alternative. What the vintage costs, measured against IANA's own coordinates for all 312 zones in zone1970.tab rather than estimated: 293 agree. Of the 19 that do not, 7 are Antarctic research stations, which this map does not cover at all and which fall back to the open-water rule; 7 more return a different identifier for the identical offset and DST all year (Australia/Brisbane for Australia/Lindeman, America/Regina for America/Swift_Current, and five like them), so the time is right and only the name is old. That leaves four regions where the answer is up to one hour wrong because the zone was split after 2016: Chilean Magallanes and Aysen (answered as America/Santiago rather than America/Punta_Arenas or America/Coyhaique), the Mexican border municipalities around Ciudad Juarez, Saratov Oblast in Russia, and the weeks each spring when Asia/Hebron and Asia/Jerusalem change on different dates. If you query inside one of those, do not trust this endpoint. Boundary precision is a separate question from vintage. The map is indexed as compacted H3 cells at resolution 6, whose half-width is about 1.6 km, chosen to match VMAP0's own stated positional accuracy of roughly 2 km rather than to flatter the index. So a point within a couple of kilometres of a zone border may be attributed to the neighbour, and no amount of the source's precision would fix that because the source does not have it. Away from a border the answer is exact. Every answer says where it came from under `source`. `boundary` means the point is inside a mapped timezone polygon and is the answer you are paying for. `coastal` means it is over water or on land this map does not cover, and the identifier is the nearest zone within about 60 km -- correct for a harbour or a coastal city whose coordinate falls just offshore, and not a boundary result. `nautical` means open water more than about 60 km from mapped land, answered with the tz database's own rule for international waters, meridians 15 degrees apart; it is not the time kept aboard any vessel and it ignores territorial waters. Longitude and latitude are checked against EPSG:4326 bounds before anything else touches them, because H3 silently normalises an out-of-range latitude into a real but wrong cell rather than refusing it. Reproject with POST /v1/transform first if you are not already in WGS 84. The DST flag is decided on offsets rather than on the tz database's own isdst bit, so Europe/Dublin reads as daylight saving in summer like everywhere else, and it is measured over a window either side of the instant so that a zone which changes its standard offset mid-year -- Asia/Almaty in 2024 -- is not mistaken for one on daylight saving.

Base crawled 0x833589fC…
0.005per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "5000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x76A51b5Dd3729950B3b60c17f19252d221968FCe",
      "scheme": "exact",
      "maxAmountRequired": "5000"
    }
  ]
}
https://rubric-protocol.com/v1/x402/hedera-facts/treasury-balance

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 120,
      "network": "eip155:8453",
      "payTo": "0xaB6731A0BcDf511c2842C768a03448075aB654ca",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 120,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "GBfJMhGiGJeWDcve1G673hEp8DLmMFomvSEHMzRfmcJu",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "31566704",
      "extra": {
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
      },
      "maxTimeoutSeconds": 120,
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "TNUZJJ3JQCGA4QNYDW4VW5CVZ4FWBTGBBEVSFLN6PJT4YEEUSSOX6EXVBM",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}
https://app.suedeai.ai/agent/video

AI video generation from a text prompt. Returns an 8-second 720p clip with native audio. Use for short-form video, b-roll, product shots, music-video visuals, social clips, and ads. Include sound cues (instruments, voices, weather, movement) since audio is generated from the scene; a silent scene renders near-silent by design. Async by default: poll the returned pollUrl for videoUrl, or pass ?async=false to block.

Base crawled 0x833589fC…
4.99per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "4990000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "AI video generation from a text prompt. Returns an 8-second 720p clip with native audio. Use for short-form video, b-roll, product shots, music-video visuals, social clips, and ads. Include sound cues (instruments, voices, weather, movement) since audio is generated from the scene; a silent scene renders near-silent by design. Async by default: poll the returned pollUrl for videoUrl, or pass ?async=false to block.",
      "docs": "https://app.suedeai.ai/developers",
      "extra": {
        "decimals": 6,
        "name": "USD Coin",
        "priceUsd": "$4.99",
        "version": "2"
      },
      "maxAmountRequired": "4990000",
      "maxTimeoutSeconds": 300,
      "mimeType": "application/json",
      "network": "eip155:8453",
      "outputSchema": {
        "input": {
          "body": {
            "aspectRatio": "16:9",
            "durationSeconds": 8,
            "prompt": "<prompt>"
          },
          "bodyType": "json",
          "discoverable": true,
          "method": "POST",
          "type": "http"
        },
        "output": {
          "jobId": "video-job-example",
          "pollUrl": "https://app.suedeai.ai/agent/video/video-job-example",
          "provider": "suede",
          "status": "queued"
        }
      },
      "payTo": "0x10FF767043A1723E0BB5B9207bC37D3442cC9E4F",
      "resource": "https://app.suedeai.ai/agent/video",
      "scheme": "exact"
    }
  ]
}
https://x402tap.com/api/ping

Heartbeat endpoint billed via a batch-settlement payment channel

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    },
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "receiverAuthorizer": "0xFA9dFa6C94285bdb52aDeFF9d88CC7882911a02b",
        "version": "2",
        "withdrawDelay": 3600
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "scheme": "batch-settlement",
      "maxAmountRequired": "1000"
    }
  ]
}
https://767-2676.com/v1/time

Signed bearer temporal evidence for cross-node execution-window grounding and audit

Base crawled 0x833589fC…
0.001per request
what an agent receives 
{
  "x402Version": 1,
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x5f5a631e975183d084f60d7121e967b30ec83cb8",
      "scheme": "exact",
      "maxAmountRequired": "1000"
    }
  ]
}