ToolVet
80trust / 100

X402fix Site

by x402fix by AgentGate in Security & trust

x402 APIPassing, checked 2 h ago

x402 site audit API for one origin. x402 site audit for one origin: finds your paid routes from /.well-known/x402 and /openapi.json (up to 8), checks each one unpaid (402 on GET and HEAD, v2 + v1 terms, accepts, Bazaar declaration) and flags drift between the discovery documents. Grade per route and for the site, with the top fixes. Search intents: x402 site audit, x402 discovery check, well-known x402 validator, openapi x402 drift, x402 route grades, paid api audit.

GET
https://api.youraitools.co/x402fix/v1/site
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
28 ms
4.0 s slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://api.youraitools.co/x402fix/v1/site

Each call costs $0.05 in USDC on Polygon, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.youraitools.co/x402fix/v1/site?url=https%3A%2F%2Fapi.youraitools.co%2Fcounterpartycheck

Parameters

ParameterTypeRequiredDescription
frameworkstringNoServer framework for the generated snippet (check tier, default hono) One of: hono, express, next.
methodstringNoMethod your paid route uses (default: from its Bazaar declaration, else GET) One of: GET, POST.
urlstringYesFull https URL of the paid x402 route (site tier: the origin or API base URL)

Example response

The provider's example. We can't check it without paying.

{
  "discovery": {
    "openapi": "https://api.youraitools.co/counterpartycheck/openapi.json",
    "routes_checked": 3,
    "routes_found": 3,
    "well_known": "https://api.youraitools.co/counterpartycheck/.well-known/x402"
  },
  "grade": "A",
  "routes": [
    {
      "grade": "A",
      "score": 100,
      "status": "pass",
      "url": "https://api.youraitools.co/counterpartycheck/v1/lite"
    }
  ],
  "score": 100,
  "status": "pass",
  "summary": "A (100/100) across 3 of 3 paid route(s); 3 pass, 0 need fixes.",
  "tier": "site",
  "url": "https://api.youraitools.co/counterpartycheck"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.youraitools.co/x402fix/v1/site?url=https%3A%2F%2Fapi.youraitools.co%2Fcounterpartycheck'

# 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 - 'https://api.youraitools.co/x402fix/v1/site?url=https%3A%2F%2Fapi.youraitools.co%2Fcounterpartycheck' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.youraitools.co%2Fx402fix%2Fv1%2Fsite
const res = await pay("https://api.youraitools.co/x402fix/v1/site?url=https%3A%2F%2Fapi.youraitools.co%2Fcounterpartycheck");
console.log(res.status, await res.text());
Python: pay and call
# 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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.youraitools.co/x402fix/v1/site?url=https%3A%2F%2Fapi.youraitools.co%2Fcounterpartycheck")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed40219 ms$0.05
9 h agoPassed40218 ms$0.05
17 h agoPassed40289 ms$0.05
25 h agoPassed40250 ms$0.05
32 h agoPassed40232 ms$0.05
Show 9 older checks
40 h agoPassed4024.0 s$0.05
47 h agoPassed40228 ms$0.05
2 days agoPassed40217 ms$0.05
3 days agoPassed40220 ms$0.05
3 days agoPassed402159 ms$0.05
3 days agoPassed40216 ms$0.05
3 days agoPassed402184 ms$0.05
4 days agoPassed40218 ms$0.05
4 days agoPassed402137 ms$0.05