Watchtower Sanctions Screening

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": "0x8A060366289D1238F2bE62f3e462dDC7173b9ff2",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://justin-pacific-exchange-revelation.trycloudflare.com/v1/screen",
      "description": "Screen a person/company/vessel name against OFAC (SDN + Consolidated), UN, EU, UK, Canada, Australia, France, Switzerland, US export-control (BIS/State), and US SAM procurement/benefit exclusions. Deterministic typo-tolerant fuzzy matching with versioned list snapshots.",
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1,
  "alternatives": {
    "x402": "Pay per call in USDC on Base — send an X-PAYMENT header (see the accepts array). No signup.",
    "api_key": "POST /v1/keys for a key, then fund it at POST /v1/topup (card)",
    "card_topup": "POST /v1/topup with your API key — Stripe credit packs"
  }
}

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",
      "resource": "https://watchtower-api.com/v1/screen"
    },
    "payTo": "0x8A060366289D1238F2bE62f3e462dDC7173b9ff2",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "name": "Vladimir Putin"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "match": true,
          "query": "Vladimir Putin",
          "matches": [
            {
              "uid": "OFAC-SDN-36991",
              "name": "PUTIN, Vladimir Vladimirovich",
              "type": "person",
              "score": 1,
              "source": "OFAC-SDN",
              "programs": [
                "RUSSIA-EO14024"
              ]
            }
          ],
          "algorithm": "wt-match-5",
          "snapshot_version": "53ae76305968fa31"
        }
      }
    },
    "name": "Sanctions Name Screening",
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "name"
              ],
              "properties": {
                "dob": {
                  "type": "string",
                  "maxLength": 40,
                  "description": "Optional date of birth or birth year — excludes candidates whose known DOB contradicts it"
                },
                "name": {
                  "type": "string",
                  "maxLength": 500,
                  "minLength": 2,
                  "description": "Person, company, vessel, or aircraft name"
                },
                "limit": {
                  "type": "integer",
                  "maximum": 50,
                  "minimum": 1
                },
                "types": {
                  "type": "array",
                  "items": {
                    "enum": [
                      "person",
                      "entity",
                      "vessel",
                      "aircraft"
                    ]
                  }
                },
                "threshold": {
                  "type": "number",
                  "maximum": 1,
                  "minimum": 0.5
                },
                "nationality": {
                  "type": "string",
                  "maxLength": 60,
                  "description": "Optional nationality/country — excludes candidates whose known nationality contradicts it"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          }
        },
        "output": {
          "type": "object"
        }
      }
    },
    "category": "security",
    "description": "Screen names against OFAC + UN + EU + UK + Canada + Australia + France + Switzerland + US export-control + US SAM exclusions lists — deterministic fuzzy matching, pay per call via x402.",
    "discoverable": true
  }
}

Provenance

Seen in the source catalog

2026-08-19 17:05Z

Last indexed by Roundhouse

2026-09-08 19:00Z

Last enriched (probe, favicon, geo)

2026-09-23 09:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 530