onchaincheck.dev

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x2ECB9E1fcca7A62758c679F11bC3241466d181d8",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://onchaincheck.dev/sanctions/search",
    "tags": [
      "sanctions-search",
      "ofac",
      "name-screening",
      "kyc",
      "aml"
    ],
    "iconUrl": "https://onchaincheck.dev/icon.png",
    "mimeType": "application/json",
    "description": "Screens a person, company, vessel or aircraft name against the OFAC SDN and non-SDN lists, the UN Security Council consolidated list and the UK Sanctions List (about 27,000 entries with aliases). Fuzzy matching ignores word order, accents, punctuation and legal forms. Each match: 0-100 score, list, listed name, type, programs, aliases, birth date, nationality. Not legal advice. Errors return 4xx/5xx JSON and aren't charged.",
    "serviceName": "Sanctions Name Screening"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "name": "Banco Nacional de Cuba"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "lists": [
              "OFAC SDN",
              "OFAC consolidated (non-SDN)",
              "UN Security Council",
              "UK Sanctions List"
            ],
            "match": true,
            "notes": "Screened against OFAC's SDN and non-SDN lists, the UN Security Council consolidated list and the UK Sanctions List as of listAsOf (refreshed with each release). A match is a lead to review, not a dete… (240 chars, truncated in this example)",
            "query": "Banco Nacional de Cuba",
            "matches": [
              {
                "url": "https://sanctionssearch.ofac.treas.gov/Details.aspx?id=306",
                "list": "OFAC SDN",
                "name": "BANCO NACIONAL DE CUBA",
                "type": "entity",
                "score": 100,
                "listId": "306",
                "aliases": [
                  "NATIONAL BANK OF CUBA"
                ],
                "programs": [
                  "CUBA"
                ],
                "dateOfBirth": null,
                "matchedName": "BANCO NACIONAL DE CUBA",
                "nationality": null
              }
            ],
            "listAsOf": "2026-11-08",
            "minScore": 85,
            "entriesScreened": 27476
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "name"
                ],
                "properties": {
                  "name": {
                    "type": "string",
                    "pattern": "^.{2,200}$",
                    "description": "Name to screen (Vladimir Putin, Banco Nacional de Cuba)"
                  },
                  "type": {
                    "enum": [
                      "individual",
                      "entity",
                      "vessel",
                      "aircraft"
                    ],
                    "type": "string",
                    "description": "Only match this kind of entry"
                  },
                  "lists": {
                    "type": "string",
                    "pattern": "^[a-z,]{2,20}$",
                    "description": "Only these lists, comma-separated: ofac, un, uk (default all)"
                  },
                  "minScore": {
                    "type": "string",
                    "pattern": "^\\d{2,3}$",
                    "description": "Lowest match score to return, 50-100 (default 85)"
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "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.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x2ECB9E1fcca7A62758c679F11bC3241466d181d8",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://onchaincheck.dev/sanctions/search",
    "description": "",
    "maxAmountRequired": "5000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-11-08 20:52Z

Last indexed by Roundhouse

2026-11-10 07:15Z

Last enriched (probe, favicon, geo)

2026-11-10 19:16Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402