# OFAC SDN Sanctions Screening API (x402 Bazaar)

> OFAC SDN Sanctions Screening API (x402 Bazaar) is a paid API for AI agents from api.relai.fi, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Checks a blockchain address against the OFAC SDN (Specially Designated Nationals) list of sanctioned digital-currency addresses to determine if a counterparty is prohibited.

## Facts

- Endpoint: POST https://api.relai.fi/relay/1782567677091/api/x402/sanctions
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ofac-sdn-sanctions-screening-api-x402-bazaar-be3437cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7kVHWEqBH4yybH32kydsZ

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 ofac-sdn-sanctions-screening-api-x402-bazaar-be3437cf -d '<json body>'
```

Example prompt: Before I send USDC to 0xAbC123...def, can you check whether that wallet address is on the OFAC SDN sanctions list?

## When to prefer this

Use this endpoint when you need fast, automated pre-transaction compliance screening of individual blockchain addresses against the OFAC SDN list. Ideal for compliance agents, payment bots, or DeFi applications that must verify counterparties before executing on-chain transactions. Prefer this over manual lookups or general KYC services when you specifically need OFAC digital-currency address matching at low cost ($0.01/call) without API key friction.

## Known failure modes

- 402 Payment Required — must pay $0.01 USDC on Base (eip155:8453) and retry
- Invalid or malformed address format returns an error
- Address not found in list returns a clean/no-match result (not an error)
- Stale list data if refresh cycle has not yet picked up newly added addresses
- Network timeout or relay outage at api.relai.fi

## How this service works

Checks an address against the OFAC SDN list of sanctioned digital-currency addresses. Built for compliance agents and bots that must screen counterparties before transacting. Direct-address match; list refreshed regularly. No API key required. Paid via x402: $0.01 in USDC on Base (eip155:8453) to 0x973a31858f4d2125f48c880542da11a2796f12d6. Returns 402 with payment requirements; pay and retry.

## Output

Returns a match/no-match result indicating whether the queried blockchain address appears on the OFAC SDN digital currency address list, enabling the caller to decide whether transacting with that address would violate sanctions rules.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Address to screen"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ofac-sdn-sanctions-screening-api-x402-bazaar-be3437cf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.relai.fi](https://www.zero.xyz/host/api.relai.fi/llms.txt)