mirrored listing x402 eip155:8453eip155:137solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

Is this API safe to pay? Audit any x402 merchant or paid endpoint BEFORE you send money

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.

10000 (raw units)

price

calls / 30d

unique payers

2026-08-31

updated

Provider

merchant-audit.clankerceo.workers.dev · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xCa03Fb4b1D2f66f5a83A5cA91021b874ac4a34a3",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 120
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0xCa03Fb4b1D2f66f5a83A5cA91021b874ac4a34a3",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "10000",
    "maxTimeoutSeconds": 120
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "CTmExzd1k8DNcmmuWGVCGoxsBshNcwFFhCe65QG57Vhd",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "maxTimeoutSeconds": 120
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "target": "https://example-merchant.com/api/some-service"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "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"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "target": {
                  "description": "Absolute https URL of the x402 resource to audit.",
                  "type": "string"
                }
              },
              "required": [
                "target"
              ],
              "type": "object"
            },
            "type": {
              "enum": [
                "http"
              ],
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "queryParams"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://merchant-audit.clankerceo.workers.dev/audit"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://merchant-audit.clankerceo.workers.dev/audit");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://merchant-audit.clankerceo.workers.dev/audit")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/8357.json, and this resource appears in /discovery/resources and /discovery/search.