83trust / 100

Screen

by Address Risk in Security & trust

x402 APIPassing, checked 2 h ago

Screen an EVM wallet or contract address BEFORE paying it. Deterministic, keyless compliance / safety gate: checks the address against the OFAC sanctioned crypto-address list and a curated taint set (mixer, hack, scam) and returns a single BLOCK / REVIEW / ALLOW recommendation plus the matched sources, so an AI agent can decide whether to send funds. No API keys, no LLM, one x402 USDC micropayment per call.

GET https://sanctions.cyberwarex.com/screen

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
273 ms typical, 273 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://sanctions.cyberwarex.com/screen?address=0x722122dF12D4e14e13Ac3b6895a86e84145b6967&chain=ethereum"
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsanctions.cyberwarex.com%2Fscreen
const res = await pay("https://sanctions.cyberwarex.com/screen?address=0x722122dF12D4e14e13Ac3b6895a86e84145b6967&chain=ethereum");
console.log(await res.json());

Example input

{
  "address": "0x722122dF12D4e14e13Ac3b6895a86e84145b6967",
  "chain": "ethereum"
}

Example output

{
  "address": "0x722122df12d4e14e13ac3b6895a86e84145b6967",
  "as_of": "2026-09-09",
  "chain": "ethereum",
  "checked_lists": [
    "OFAC sanctioned crypto addresses",
    "curated taint set (mixer/hack/scam)"
  ],
  "disclaimer": "We screen against the OFAC sanctioned crypto-address list and a curated taint set; we do not give legal or financial advice and this is not a compliance certification. A clear result is not a guarantee of safety, and lists can lag real-world events. Verify against your own obligations before you pay.",
  "recommendation": "BLOCK",
  "risk": {
    "level": "blocked",
    "reasons": [
      "address is in the mixer taint set (Tornado Cash)"
    ]
  },
  "sanctioned": {
    "hit": false,
    "program": null,
    "source": null
  },
  "taint": {
    "categories": [
      "mixer"
    ],
    "hit": true,
    "label": "Tornado Cash: Router / proxy contract"
  }
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402273 ms$0.005