Guides · API

Self-hosted wallet evidence record for crypto firms: the wallet against OFAC, the claimed owner against EU, UN, UK and US sanctions and PEP, the company record for businesses, one dated record with a signed receipt.

Use when a crypto service sends to or receives from a self-hosted wallet and must document its checks (EU AMLR, Travel Rule files): screens the wallet against OFAC-listed addresses, the claimed owner against EU, UN, UK and US sanctions and PEP, and checks the company register for businesses. Returns no_hits, review or block_review with list versions and a signed receipt. Input: wallet, owner, optional owner_type, birth_year, country.

0.02 USDC per call · GET /v1/wallet/evidence · free preview at /v1/wallet/evidence/preview

Parameters

Name	Required	Description
`wallet`	yes	Self-hosted wallet address
`owner`	yes	Name of the person or company that claims the wallet
`owner_type`	no
`birth_year`	no
`country`	no	ISO country of the owner

Example request

curl "https://factline.dev/v1/wallet/evidence?wallet=0x0330070fd38ec3bb94f58fa55d40368271e9e54a&owner=Jan+de+Vries&owner_type=person"
# 402 Payment Required: pay with an x402 client (USDC on Base or Solana), or send
# Authorization: Bearer <your Factline API key>

Example response

{
  "outcome": "no_hits",
  "flags": [],
  "evidence": {
    "checked_at": "2026-10-11T12:00:00.000Z",
    "wallet": {
      "address": "0x0330070fd38ec3bb94f58fa55d40368271e9e54a",
      "ofac_listed": false,
      "matches": []
    },
    "owner": {
      "name": "Jan de Vries",
      "type": "person",
      "sanctions": {
        "possible_match": false,
        "matches": []
      },
      "pep": {
        "possible_match": false,
        "matches": []
      }
    },
    "company": "not applicable"
  }
}

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 Self-hosted wallet evidence record for crypto firms: the wallet against OFAC, the claimed owner against EU, UN, UK and US sanctions and PEP, the company record for businesses, one dated record with a signed receipt. cost?

0.02 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/wallet/evidence/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.