Guides · API

Crypto wallet sanctions screening API

Crypto wallet sanctions screening (AML/KYT): checks a Bitcoin, Ethereum/EVM, Tron, USDT, Litecoin, Monero or other address against the wallet addresses on the US OFAC SDN list, refreshed weekly. Returns sanctioned true/false, currency, the listed entity and programme. For wallets, exchanges, payout, crypto onboarding and agent payment flows: screen a counterparty before sending funds.

0.003 USDC per call · GET /v1/sanctions/wallet · free preview at /v1/sanctions/wallet/preview

Parameters

Name	Required	Description
`address`	yes	Crypto wallet address (Bitcoin, Ethereum/EVM 0x, Tron, USDT, Litecoin, Monero ...)

Example request

curl "https://factline.dev/v1/sanctions/wallet?address=0x0330070fd38ec3bb94f58fa55d40368271e9e54a"
# 402 Payment Required: pay with an x402 client (USDC on Base), or send
# Authorization: Bearer <your Factline API key>

Example response

{
  "address": "0x0330070fd38ec3bb94f58fa55d40368271e9e54a",
  "sanctioned": true,
  "matches": [
    {
      "currency": "ETH",
      "listed_entity": "AMNOKGANG TECHNOLOGY DEVELOPMENT COMPANY",
      "lists": [
        "US"
      ],
      "programmes": [
        "US OFAC DPRK4"
      ],
      "reference": "US 57056"
    }
  ],
  "list": {
    "name": "US OFAC SDN list, digital currency addresses",
    "loaded_at": "2026-10-08T02:37:35.043Z"
  }
}

Use it from an AI agent

Agents with an x402 wallet call the URL directly and pay per request. Assistants that speak MCP connect to https://factline.dev/mcp. Full reference: docs, OpenAPI, llms.txt. Businesses: API keys with a free trial.

Questions

How much does the Crypto wallet sanctions screening cost?

0.003 USDC per call, paid per request with x402 (no account), or included in a Factline API key plan with a free trial. Calls that fail are not charged.

Can I try it for free?

Yes: GET /v1/sanctions/wallet/preview with the same parameters validates your input and shows what the paid answer contains, at no cost.

Where does the data come from?

Official public registers and open data, named with their licence in every response (source field) and at /.well-known/x402-license-provenance.