API · x402

OFAC SDN address lookup (exact match): checks whether one EVM (0x…) or Solana (base58)…

by x402.45-63-29-234.sslip.io · verified provider · updated 2026-10-17

30d calls—

30d payers—

MethodHTTP

Outputjson

What it does

OFAC SDN address lookup (exact match): checks whether one EVM (0x…) or Solana (base58) address appears verbatim among the digital currency addresses in our dated copy of the US Treasury OFAC SDN List. Coverage: EVM and Solana addresses only; no BTC, TRON or other chains. Returns facts only: result `listed` or `not_listed_in_snapshot`, the matching SDN entry name and UID, listed currency and programs, and the list date of our dated copy. If our copy is more than 48 hours old or unavailable, the call is refused with 503 list_stale before any payment is taken. Covers the SDN List only. Not legal advice. $0.005 per call.

Tags: ofac · sdn · sdn-list · address-lookup · evm · solana

Call contract

Method: HTTP
Input: HTTP request
Output: json

No input exampleProvider did not publish one in Bazaar metadata.

No output exampleProvider did not publish one in Bazaar metadata.

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/64153.json for the price and payment options.
Pay. Call GET https://x402.45-63-29-234.sslip.io/v1/ofac/lookup. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.005 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.005	0xc03E8F95479c1354ff396F0B570216681677809f	120s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xc03E8F95479c1354ff396F0B570216681677809f",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "amountUsd": 0.005,
    "maxTimeoutSeconds": 120
  }
]

Examples

curl

curl -X GET 'https://x402.45-63-29-234.sslip.io/v1/ofac/lookup'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://x402.45-63-29-234.sslip.io/v1/ofac/lookup", {
  "method": "GET"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.request("GET", "https://x402.45-63-29-234.sslip.io/v1/ofac/lookup")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: x402.45-63-29-234.sslip.io
Endpoint: https://x402.45-63-29-234.sslip.io/v1/ofac/lookup
Machine-readable: /resources/64153.json