CrawlWitness

Use when an AI agent or treasury is about to pay, receive from or interact with a crypto wallet: checks the address against the US OFAC SDN sanctions list (all its digital-currency addresses: ETH/EVM, BTC, TRX, SOL, USDT, USDC…) and returns sanctioned true/false, the listed entity and programs, and the exact list version used, with a signed receipt. Errors: 400 invalid address (not charged); 503 i

Open endpoint ↗

Price per call: $0.005
Chain: Base
Method: GET
Paid calls · 30 days: 0

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://api.crawlwitness.com/v1/wallet-check", { method: "GET" });
console.log(await res.json());

https://api.crawlwitness.com/v1/wallet-check