Quartermaster x402 Inspector · Inspect

GETBaseSolana

$0.002

per call · USD Coin on Base

Inspect and lint any x402 paid endpoint: decodes the 402 payment challenge, names the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.

Endpoint

GET https://quartermaster.surewhynot.app/v1/x402/inspect

Calls / 30d

Unique payers / 30d

Sep 9

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://quartermaster.surewhynot.app/v1/x402/inspect", {
  method: "GET",
});
const data = await res.json();

cURL

curl -X GET \
  "https://quartermaster.surewhynot.app/v1/x402/inspect?url=https%3A%2F%2Fapi.example.com%2Fpaid-endpoint" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "accepts": [
    {
      "asset_name": "USDC (Base mainnet)",
      "network": "eip155:8453",
      "network_name": "Base mainnet",
      "pay_to": "0x...",
      "scheme": "exact"
    }
  ],
  "findings": [
    "No `bazaar` discovery extension declared - settlements will NOT list this endpoint in the Coinbase Bazaar catalog."
  ],
  "has_bazaar_discovery_metadata": false,
  "http_status": 402,
  "is_x402": true,
  "url": "https://api.example.com/paid-endpoint",
  "x402_version": 2
}

Payment details

Pay to0x5253666c40432f009ebd99908b9cd2a7fd1019cb

AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913

NetworksBase, Solana

Schemesexact

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