A

Agentbit · Inspect

by Agentbit

POSTBase

$0.001

per call · USD Coin on Base

Lint any x402 endpoint or payment header against the v2 spec and real CDP facilitator behavior: CAIP-2 network ids, atomic amounts, the EIP-712 domain-name trap ('USD Coin' on Base mainnet vs 'USDC' on Sepolia — wrong name = every settlement fails), the extensions echo Coinbase Bazaar requires for indexing, expired authorizations. Findings as error/warning/info with what will actually break. Built by a seller that debugged all of these in production.

Endpoint

POST https://agentbit.app/v1/x402/inspect

1

Calls / 30d

1

Unique payers / 30d

Sep 6

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://agentbit.app/v1/x402/inspect", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "url": "https://agentbit.app/v1/web/search"
  }),
});
const data = await res.json();
cURL
curl -X POST \
  "https://agentbit.app/v1/x402/inspect" \
  -H "Content-Type: application/json" \
  -d '{"url":"https://agentbit.app/v1/web/search"}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "accepts_count": 1,
  "counts": {
    "errors": 0,
    "infos": 1,
    "warnings": 0
  },
  "findings": [
    {
      "code": "EIP712_DOMAIN_OK",
      "level": "info",
      "message": "accepts[0]: extra.name matches USDC on Base mainnet."
    }
  ],
  "http_status": 402,
  "mode": "live-probe",
  "url": "https://agentbit.app/v1/web/search",
  "verdict": "pass"
}

Payment details

Pay to0x4395c7e383b7e05665aad7f36ed77c01923dd965
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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