# Crypto Sanctions Screen (x402)

> Crypto Sanctions Screen (x402) is a paid API for AI agents from sanctions-screen.frcompanycheck.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).

Checks a single cryptocurrency address against the OFAC SDN digital-currency-address list and returns whether it is sanctioned, along with matching program and entity details.

## Facts

- Endpoint: GET https://sanctions-screen.frcompanycheck.workers.dev/v1/screen/%7Baddress%7D?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-sanctions-screen-x402-6307a3a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qfiCGs56xsulkveDfxmN-

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 crypto-sanctions-screen-x402-6307a3a5
```

Example prompt: Can you check whether the crypto address 0x252a8bd2319d8a555b872990601221b3a2053bce is on the OFAC sanctions list before I send any funds to it?

## When to prefer this

Use this endpoint when you need a fast, pay-per-call OFAC SDN sanctions check on a single crypto address without committing to a subscription-based compliance service. Ideal for agents that perform on-demand pre-transaction screening, onboarding flows, or risk checks where volume is low to moderate and micropayment billing via x402 on Base is acceptable. Prefer dedicated compliance platforms for high-volume batch screening or when you need broader watchlist coverage beyond the OFAC SDN digital currency addresses.

## Known failure modes

- Invalid or malformed address format may return an error or empty match result
- OFAC list data may be stale if the publish_date has not been refreshed recently
- Address not found on list does not guarantee the address is safe — only that it isn't currently listed
- x402 payment failure if USDC balance on Base is insufficient
- Rate limiting or worker downtime may cause transient 5xx errors

## How this service works

Screen a crypto address against the OFAC SDN digital-currency-address list (U.S. Treasury, public domain). Pay per call with x402 (USDC on Base). Not legal advice.

## Output

Returns a JSON object with: the queried address, a boolean 'sanctioned' flag, the OFAC SDN list metadata (name, license, publish date, address count), and an array of matches each containing currency type, SDN programs (e.g. CYBER2, HRIT-IR), SDN entity type, and entity name. If not sanctioned, the matches array is empty.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "list": {
   "name": "OFAC SDN",
   "license": "public domain (U.S. federal government work)",
   "publish_date": "10/09/2026",
   "address_count": 1050
  },
  "address": "0x252a8bd2319d8a555b872990601221b3a2053bce",
  "matches": [
   {
    "currency": "ETH",
    "programs": [
     "CYBER2",
     "HRIT-IR"
    ],
    "sdn_type": "Entity",
    "entity_name": "ISLAMIC REPUBLIC OF IRAN"
   }
  ],
  "sanctioned": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-sanctions-screen-x402-6307a3a5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sanctions-screen.frcompanycheck.workers.dev](https://www.zero.xyz/host/sanctions-screen.frcompanycheck.workers.dev/llms.txt)