Address Risk Screen

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": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "object",
        "required": [
          "chain",
          "address",
          "screen_mode",
          "sanctioned",
          "sanction_source",
          "is_contract",
          "fresh_wallet",
          "tx_count",
          "risk_score",
          "verdict",
          "reasons",
          "disclaimer",
          "as_of_block"
        ],
        "properties": {
          "chain": {
            "type": "string",
            "description": "Chain slug screened. base | ethereum (on-chain mode) or bitcoin | tron | litecoin | monero | dash | zcash | bitcoin-cash | dogecoin | bitcoin-gold | verge | solana (list-only mode)."
          },
          "address": {
            "type": "string",
            "description": "The screened address (EVM lowercased; base58 chains verbatim)."
          },
          "reasons": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Signals that drove the verdict."
          },
          "verdict": {
            "enum": [
              "BLOCKED",
              "REVIEW",
              "NO_RED_FLAGS_FOUND"
            ],
            "type": "string",
            "description": "Heuristic verdict. Never says \"SAFE\" — absence of signals is \"NO_RED_FLAGS_FOUND\"."
          },
          "tx_count": {
            "type": [
              "string",
              "null"
            ],
            "description": "Outbound tx count (nonce), decimal string; null in list-only mode."
          },
          "disclaimer": {
            "type": "string"
          },
          "risk_score": {
            "type": "integer",
            "description": "0–100; 100 = sanctioned."
          },
          "sanctioned": {
            "type": "boolean",
            "description": "On the bundled OFAC SDN crypto list (that chain's segment)."
          },
          "as_of_block": {
            "type": [
              "string",
              "null"
            ],
            "description": "Chain height the reads were taken at; null in list-only mode."
          },
          "is_contract": {
            "type": [
              "boolean",
              "null"
            ],
            "description": "Contract bytecode present; null in list-only mode."
          },
          "screen_mode": {
            "enum": [
              "onchain",
              "list-only"
            ],
            "type": "string",
            "description": "\"onchain\" = OFAC membership + live EVM chain reads. \"list-only\" = OFAC membership against that chain's SDN segment only; the on-chain signal fields are null."
          },
          "fresh_wallet": {
            "type": [
              "boolean",
              "null"
            ],
            "description": "nonce === 0 AND native balance === 0; null in list-only mode."
          },
          "sanction_source": {
            "type": [
              "string",
              "null"
            ],
            "description": "\"OFAC SDN\" when sanctioned, else null."
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object"
        },
        "output": {
          "type": "object"
        }
      }
    },
    "category": "compliance",
    "routeTemplate": "https://x402.professorsausages.com/address-screen/check/:chain/:address"
  },
  "sample": {
    "url": "https://x402.professorsausages.com/address-screen/sample",
    "hint": "A real cached response from this API (with its capture timestamp), free — judge the data quality before paying."
  },
  "catalog": {
    "message": "You called Address Risk Screen. Agents doing compliance work commonly also use these — same pay-per-call model, each with a FREE real sample record (freeSample link):",
    "related": [
      {
        "call": "/sanctions-screen?ref=xsell&v=related&from=address-screen",
        "name": "OFAC Sanctions Name Screen",
        "summary": "Fuzzy OFAC name screening for agents with compliance duties",
        "freeSample": "/sanctions-screen/sample?ref=xsell&v=related&from=address-screen"
      }
    ],
    "strategy": "related",
    "catalogUrl": "https://x402.professorsausages.com/?ref=402&v=related&from=address-screen"
  },
  "suggest": {
    "url": "https://x402.professorsausages.com/suggest",
    "hint": "Missing data you'd pay for? POST {want, would_pay_usd} — free. The most-requested datasets get built first."
  },
  "discount": {
    "off": "50%",
    "hint": "Send X-Intent: <40+ chars describing what you're building and what data you need> for 50% off this call.",
    "header": "X-Intent"
  }
}

Provenance

Seen in the source catalog

2026-07-20 23:42Z

Last indexed by Roundhouse

2026-09-25 17:50Z

Last enriched (probe, favicon, geo)

2026-09-20 06:45Z

x402 version

2

Max timeout

60s

Liveness probe

HTTP 400