ToolVet
80trust / 100

Check

by AgentRXI in Developer tools

x402 APIPassing, checked 3 h ago

x402 endpoint checker: tests any paid x402 URL for a correct 402, price and networks, pay-to address, discovery metadata, CORS, response time and Coinbase's validator, and lists every issue to fix.

GET
https://agentrxi.com/v1/x402/check
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
78 ms
1.2 s slowest 5%
Last check
Passed
3 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://agentrxi.com/v1/x402/check

Each call costs $0.005 in USDC on Base, 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://agentrxi.com/v1/x402/check?url=https%3A%2F%2Fagents.torbrooknews.com%2Fv1%2Ffx%3Ffrom%3DUSD%26to%3DEUR

Parameters

ParameterTypeRequiredDescription
methodstringNoGET (default) or POST
urlstringYes

Example response

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

{
  "cheapest_usd": 0.002,
  "coinbase_validator": {
    "valid": true
  },
  "healthy": true,
  "issues": [],
  "response_ms": 120,
  "status": 402
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://agentrxi.com/v1/x402/check?url=https%3A%2F%2Fagents.torbrooknews.com%2Fv1%2Ffx%3Ffrom%3DUSD%26to%3DEUR'

# 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://agentrxi.com/v1/x402/check?url=https%3A%2F%2Fagents.torbrooknews.com%2Fv1%2Ffx%3Ffrom%3DUSD%26to%3DEUR' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentrxi.com%2Fv1%2Fx402%2Fcheck
const res = await pay("https://agentrxi.com/v1/x402/check?url=https%3A%2F%2Fagents.torbrooknews.com%2Fv1%2Ffx%3Ffrom%3DUSD%26to%3DEUR");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://agentrxi.com/v1/x402/check?url=https%3A%2F%2Fagents.torbrooknews.com%2Fv1%2Ffx%3Ffrom%3DUSD%26to%3DEUR")
    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
3 h agoPassed40270 ms$0.005
8 h agoPassed40282 ms$0.005
12 h agoPassed402489 ms$0.005
16 h agoPassed40276 ms$0.005
20 h agoPassed4021.2 s$0.005
Show 4 older checks
25 h agoPassed40278 ms$0.005
29 h agoPassed40274 ms$0.005
33 h agoPassed40292 ms$0.005
43 h agoPassed40242 ms$0.005