# x402 Tools – OFAC Sanctions Screener

> x402 Tools – OFAC Sanctions Screener is a paid API for AI agents from x402-tools-production-2755.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Screens up to 50 crypto addresses against the US Treasury OFAC SDN sanctions list and returns match details including sanctioned entity name, programs, and listing date.

## Facts

- Endpoint: GET https://x402-tools-production-2755.up.railway.app/tools/sanctions?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-tools-ofac-sanctions-screener-aae81dbf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AIKHzRyBhqWRB_MiGcvgY

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 x402-tools-ofac-sanctions-screener-aae81dbf
```

Example prompt: Before I send USDC to 0x1234abcd...ef56, can you check whether that Ethereum address is on the OFAC sanctions list?

## When to prefer this

Use this endpoint when an agent needs a fast, low-cost pre-payment sanction check on specific crypto wallet addresses across multiple chains (ETH/EVM, BTC, TRX, SOL, USDT, etc.) against the OFAC SDN list. Prefer it over full compliance platforms when exact-address screening is sufficient and you don't need transaction graph analysis, entity-level risk scoring, or multi-jurisdictional sanctions lists. Ideal for agentic payment workflows where a lightweight, per-call check is needed before executing a transfer.

## Known failure modes

- More than 50 addresses supplied in a single request — request rejected
- Invalid address format not recognized — may return no match rather than an error
- Address not found on SDN list even if entity is sanctioned under a different address variant (exact-match only, no fuzzy or cluster matching)
- OFAC list data may be up to 24 hours stale if accessed shortly before daily refresh
- Network or upstream Railway deployment downtime causing 5xx errors

## How this service works

Use before sending funds to check that a recipient isn't sanctioned. Screens up to 50 crypto addresses (ETH/EVM, BTC, TRX, USDT, SOL and more) against the addresses on the US Treasury OFAC SDN list, refreshed daily, returning the sanctioned entity, programs and listing date. Exact-address match only: not a full compliance screen.

## Output

Returns a JSON object per queried address indicating whether it matched the OFAC SDN list; for matches, includes the sanctioned entity's name, the OFAC programs it is listed under, and the listing date. Non-matching addresses are returned with a clean status.

## 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",
     "properties": {
      "address": {
       "type": "string",
       "description": "A single address (alternative to 'addresses')"
      },
      "addresses": {
       "type": "string",
       "description": "Comma-separated crypto addresses, up to 50, any chain"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-ofac-sanctions-screener-aae81dbf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-tools-production-2755.up.railway.app](https://www.zero.xyz/host/x402-tools-production-2755.up.railway.app/llms.txt)