ToolVet
76trust / 100

Screen

by Wallet Sanctions & Risk Screen in Security & trust

x402 APIPassing, checked 2 h ago

Is this address safe to pay? Screen a wallet address before you pay or send funds to it: an OFAC SDN sanctions check of the address plus address reputation (drainer, phishing, mixer, money laundering) for EVM and Solana. Returns one verdict to branch on (allow, review, or block) with a 0-100 risk score and per-signal evidence. AML / KYT counterparty check for x402 payments. $0.02 USDC.

POST https://api.anchor-x402.com/v1/screen

Last 30 days

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

Uptime
95.2%
Response time
591 ms typical, 719 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

POST https://api.anchor-x402.com/v1/screen

Each call costs $0.02 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://api.anchor-x402.com/v1/screen
content-type: application/json

{
  "wallet": "0x098b716b8aaf21512996dc57eb0615e2383e2f96"
}

Parameters

ParameterTypeRequiredDescription
walletstringYesWallet address — EVM 0x… (40 hex) or Solana base58 pubkey.

Example response

The provider's example. We can't check it without paying.

Example response, 39 lines
{
  "address_type": "eoa",
  "chain_inferred": "ethereum",
  "checked_at": 1790985600,
  "corpus_version": "ofac-sdn-2026-10-02",
  "labels": [],
  "notes": "Address is on the OFAC SDN list as LAZARUS GROUP (program DPRK3). DO NOT transact without a regulatory-approved exception.",
  "partial": false,
  "recommendation": "block",
  "risk_level": "critical",
  "risk_score": 100,
  "sanctioned_lists": [
    "OFAC SDN",
    "LAZARUS GROUP",
    "DPRK3"
  ],
  "sanctions_match": true,
  "signals": [
    {
      "code": "ofac_sdn",
      "detail": "OFAC SDN, LAZARUS GROUP, DPRK3",
      "severity": "critical",
      "source": "treasury.gov"
    },
    {
      "code": "sanctioned",
      "detail": "On a sanctions list",
      "severity": "critical",
      "source": "goplus"
    },
    {
      "code": "stealing_attack",
      "detail": "Linked to token-stealing attacks",
      "severity": "critical",
      "source": "goplus"
    }
  ],
  "wallet": "0x098b716b8aaf21512996dc57eb0615e2383e2f96"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.anchor-x402.com/v1/screen' \
  -H 'content-type: application/json' \
  --data-raw '{"wallet":"0x098b716b8aaf21512996dc57eb0615e2383e2f96"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.anchor-x402.com/v1/screen' \
  -H 'content-type: application/json' \
  --data-raw '{"wallet":"0x098b716b8aaf21512996dc57eb0615e2383e2f96"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.anchor-x402.com%2Fv1%2Fscreen&method=POST
const res = await pay("https://api.anchor-x402.com/v1/screen", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "wallet": "0x098b716b8aaf21512996dc57eb0615e2383e2f96"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.anchor-x402.com/v1/screen",
        json={
            "wallet": "0x098b716b8aaf21512996dc57eb0615e2383e2f96",
        },
    )
    print(res.status_code, res.text)

Security scan

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

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402700 ms$0.02
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