api.crawlwitness.com
No description published for this endpoint.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa20F0b8ADf20Ed17a8d27B369B3058afdB71a5C5",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "79Bz5UMBA9ZSpa2XDDpkTKDqto5ScDgN5o8pRVRJVBLP",
"transactionVersions": [
0
]
},
"payTo": "DEuats4W5mXoX1dZEb693q4Y4GT6mnZiwPjTN2GYFFrd",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"detalle": "pass ?address=<crypto address>",
"resource": {
"url": "https://api.crawlwitness.com/v1/wallet-check",
"tags": [
"sanctions-screening",
"ofac",
"wallet-check",
"compliance",
"aml"
],
"iconUrl": "https://api.crawlwitness.com/icono.png",
"mimeType": "application/json",
"description": "Use when an AI agent or treasury is about to pay, receive from or interact with a crypto wallet: checks the address against the US OFAC SDN sanctions list (all its digital-currency addresses: ETH/EVM, BTC, TRX, SOL, USDT, USDC…) and returns sanctioned true/false, the listed entity and programs, and the exact list version used, with a signed receipt. Errors: 400 invalid address (not charged); 503 if no sanctions list is loaded (not charged).",
"serviceName": "CrawlWitness"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96"
}
},
"output": {
"type": "json",
"example": {
"pago": {
"recibo": {
"firma": "0x…"
},
"transaccion": "0x…"
},
"lists": [
{
"list": "US OFAC SDN",
"sha256": "…",
"addresses": 1100,
"published": "10/30/2026"
}
],
"method": "wallet-check/1",
"address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
"matches": [
{
"list": "US OFAC SDN",
"asset": "ETH",
"entity": "LAZARUS GROUP",
"programs": [
"DPRK3"
],
"reference": "…"
}
],
"decision": "blocked",
"normalized": "0x098b716b8aaf21512996dc57eb0615e2383e2f96",
"sanctioned": true,
"address_type": "evm"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"maxLength": 110,
"minLength": 20,
"description": "Crypto address (EVM 0x…, BTC, TRX, SOL…)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xa20F0b8ADf20Ed17a8d27B369B3058afdB71a5C5",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1793699465,
"resourceUrl": "https://api.crawlwitness.com/v1/wallet-check"
},
"signature": "0x5ab1b5a08ae79f94b720f6d05b36b5be2aed84e1ee1988371875042db66fe5485e07ca337f89f5375e170a35f14a8ea27f4da81aa23e5278e423568b4a9cbe3a1b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "DEuats4W5mXoX1dZEb693q4Y4GT6mnZiwPjTN2GYFFrd",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1793699465,
"resourceUrl": "https://api.crawlwitness.com/v1/wallet-check"
},
"signature": "0x6b203b62f45793885796ab29a07b3392b1cc2bd916c70a933bfe940fc4a0ec1c3b3665b71fe2a022daa2f81495d3efb96e65fd9da6a0e036c666bde5d5f23cbe1b",
"acceptIndex": 1
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"required"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[a-zA-Z0-9_-]+$",
"maxLength": 128,
"minLength": 16
},
"required": {
"type": "boolean"
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.005 USDC on Base to 0xa20F…1a5C5. The signed payment is good for 5 minutes.
- Paid to
- 0xa20F…1a5C5
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
- Returns
- application/json
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- DEuats…YFFrd
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa20F0b8ADf20Ed17a8d27B369B3058afdB71a5C5",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.crawlwitness.com/v1/wallet-check",
"description": "",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "79Bz5UMBA9ZSpa2XDDpkTKDqto5ScDgN5o8pRVRJVBLP",
"transactionVersions": [
0
]
},
"payTo": "DEuats4W5mXoX1dZEb693q4Y4GT6mnZiwPjTN2GYFFrd",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://api.crawlwitness.com/v1/wallet-check",
"description": "",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
]Provenance
- Seen in the source catalog
- 2026-11-05 15:41Z
- Last indexed by Roundhouse
- 2026-11-05 16:45Z
- Last enriched (probe, favicon, geo)
- 2026-11-03 09:46Z
- x402 version
- 1
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api.crawlwitness.com and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.crawlwitness.com' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.crawlwitness.com/v1/wallet-check, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.