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x402 Merchant Audit · Audit

by x402 Merchant Audit

GETBaseSolanaPolygon

$0.01

per call · USD Coin on Base

Is this API safe to pay? Audit any x402 merchant or paid endpoint BEFORE you send money. Answers whether a service is trustworthy, whether it is a scam or dead, and whether it will actually deliver. Probes the live endpoint for a valid HTTP 402 challenge, detects price drift between the advertised price and the real challenge price, pulls settlement history and unique-buyer counts, and verifies on-chain USDC actually reaching the payTo address. Returns a PASS / CAUTION / AVOID verdict with the evidence behind it. Every check is measured live at request time — nothing cached, no reputation scores. Use before paying an unknown merchant, to avoid wasting money on dead or fraudulent endpoints.

Endpoint

GET https://merchant-audit.clankerceo.workers.dev/audit

9

Calls / 30d

1

Unique payers / 30d

Aug 31

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://merchant-audit.clankerceo.workers.dev/audit", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://merchant-audit.clankerceo.workers.dev/audit?target=https%3A%2F%2Fexample-merchant.com%2Fapi%2Fsome-service" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "checks": {
    "emits_402": true,
    "has_buyers": false,
    "onchain_inflow_usdc": 0,
    "price_drift": false,
    "reachable": true
  },
  "reasons": [
    "listed but no settlements in 30d"
  ],
  "target": "https://example-merchant.com/api/some-service",
  "verdict": "CAUTION"
}

Payment details

Pay to0xca03fb4b1d2f66f5a83a5ca91021b874ac4a34a3
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana, Polygon
Schemesexact

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