# Payee Preflight Check: OFAC Screening & Account Verification

> Payee Preflight Check: OFAC Screening & Account Verification is a paid API for AI agents from agent-data-tools.revmesh2074.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-30).

Screens an EVM wallet address for OFAC SDN sanctions, classifies the account type, and optionally checks the payee domain's age and trust flags before sending a payment.

## Facts

- Endpoint: GET https://agent-data-tools.revmesh2074.workers.dev/check/payee?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Provider: agent-data-tools.revmesh2074.workers.dev
- Website: https://agent-data-tools.revmesh2074.workers.dev
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-data-tools-revmesh2074-workers-dev-payee-preflight-check-ofac-a46e129f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MqTCuwnH0VogtuaHgVQB5

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agent-data-tools-revmesh2074-workers-dev-payee-preflight-check-ofac-a46e129f
```

Example prompt: Before you send that USDC payment on Base, can you run a preflight check on 0x1234...abcd — screen it for OFAC sanctions, tell me if it's a wallet or a contract, and also check the trust score for their domain revmesh.io?

## When to prefer this

Use this endpoint immediately before any x402 or USDC payment to an unfamiliar address — especially when compliance screening is needed. Prefer this over generic blockchain explorers when you need a combined OFAC check plus account type classification plus optional domain trust in a single fast call. For deeper wallet heuristics and holdings analysis, use the companion check_counterparty endpoint instead.

## Known failure modes

- Invalid or malformed 0x address returns an error
- Unsupported chain value returns a validation error
- Domain lookup may fail if WHOIS data is unavailable
- Network timeout on slow RPC calls to the specified chain
- OFAC data may have a short lag behind the live SDN list

## How this service works

566 pay-per-call tools for AI agents over HTTP or MCP, from $0.002 a call, most at $0.01. Every caller gets 25 free calls; then pay per call in USDC via x402 (Base, Polygon, Arbitrum, Solana) or by card with prepaid credits from /credits. No account needed; failed calls are never charged; per-tool reliability is public at /status. Crypto: token prices and wallet portfolios from Uniswap v3, chain reads on Base, Ethereum, Arbitrum, Optimism and Polygon, OFAC sanctions screening. Web: Read public static documentation, pages, PDFs and RSS feeds as clean text, plus link previews and sitemaps. Business: company profiles, domain and email checks. Also Bitcoin, FX, weather, holidays, geocoding, AI text, and JSON, date and validation utilities.

## Output

Returns a structured JSON object with: a verdict (pass, review, or block) and human-readable reasons; sanctions status including whether the address appears on the OFAC SDN list and any match details; account classification (EOA wallet, delegated wallet, or contract) and nonce; and optionally domain age in days, registration date, trust rating, and trust flags. Also includes a note about limitations (screening aid, not legal advice).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "enum": [
        "base",
        "eth",
        "arb",
        "op",
        "polygon"
       ],
       "type": "string",
       "examples": [
        "base"
       ],
       "description": "Network of the payment: base (default), eth, arb, op or polygon"
      },
      "domain": {
       "type": "string",
       "examples": [
        "ethereum.org"
       ],
       "description": "Optional: the payee's domain or website URL, e.g. ethereum.org; adds domain age and trust flags"
      },
      "address": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{40}$",
       "examples": [
        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
       ],
       "description": "0x address you are about to pay"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "note": {
       "type": "string"
      },
      "chain": {
       "type": "string"
      },
      "domain": {
       "type": "object",
       "properties": {
        "name": {
         "type": "string"
        },
        "flags": {
         "type": "array",
         "items": {}
        },
        "trust": {
         "type": "string"
        },
        "ageDays": {
         "type": "number"
        },
        "registeredAt": {
         "type": "string"
        }
       }
      },
      "account": {
       "type": "object",
       "properties": {
        "type": {
         "type": "string"
        },
        "accountNonce": {
         "type": "number"
        }
       }
      },
      "address": {
       "type": "string"
      },
      "reasons": {
       "type": "array",
       "items": {}
      },
      "verdict": {
       "type": "string"
      },
      "sanctions": {
       "type": "object",
       "properties": {
        "listed": {
         "type": "boolean"
        },
        "matches": {
     
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Screening aid only: confirm any sanctions match against the official OFAC record.",
  "chain": "base",
  "domain": {
   "name": "ethereum.org",
   "flags": [],
   "trust": "high",
   "ageDays": 4100,
   "registeredAt": "2015-03-21T00:00:00Z"
  },
  "account": {
   "type": "eoa",
   "accountNonce": 1234
  },
  "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "reasons": [],
  "verdict": "pass",
  "sanctions": {
   "listed": false,
   "matches": [],
   "listDate": "2026-10-17T20:15:00.000Z"
  },
  "limitations": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-data-tools-revmesh2074-workers-dev-payee-preflight-check-ofac-a46e129f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-data-tools.revmesh2074.workers.dev](https://www.zero.xyz/host/agent-data-tools.revmesh2074.workers.dev/llms.txt)