Wallet Risk Check

{
  "account": {
    "code_size_bytes": 0,
    "delegate": null,
    "implementation": null,
    "native_balance": 0.0012,
    "owner": null,
    "safe": null,
    "token": null,
    "transactions_sent": 12,
    "type": "wallet",
    "usdc_balance": 4.21
  },
  "address": "0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC",
  "chain": "base",
  "disclaimer": "Automated checks of on-chain data and OFAC's published addresses, not legal or financial advice. No check catches every scam.",
  "explorer_url": "https://basescan.org/address/0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC",
  "next_calls": [],
  "reasons": [
    {
      "code": "active",
      "message": "Has sent 12 transactions on Base.",
      "severity": "info"
    }
  ],
  "risk_score": 0,
  "sanctions": {
    "checked_against": "OFAC SDN and Consolidated lists (1,245 crypto addresses, loaded 2026-10-12T04:00:00.000Z)",
    "hits": []
  },
  "verdict": "no_flags"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://x402-agent-api.onrender.com/api/v1/wallet-risk-check' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC","chain":"base"}'

# 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://x402-agent-api.onrender.com/api/v1/wallet-risk-check' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC","chain":"base"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-agent-api.onrender.com%2Fapi%2Fv1%2Fwallet-risk-check&method=POST
const res = await pay("https://x402-agent-api.onrender.com/api/v1/wallet-risk-check", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC",
    "chain": "base"
  }),
});
console.log(res.status, await res.text());

# 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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://x402-agent-api.onrender.com/api/v1/wallet-risk-check",
        json={
            "address": "0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC",
            "chain": "base",
        },
    )
    print(res.status_code, res.text)