ToolVet
78trust / 100

Tools X402 Endpoint Check

by agoreum.xyz in Documents & files

x402 APIPassing, checked 29 min ago

Probes an x402 endpoint: reachability, TLS, latency, the 402 response and whether its payment terms parse and make sense.

POST
https://agoreum.xyz/api/v1/x402/tools/x402-endpoint-check
Price
$0.5
per call in USDC
Uptime
100%
last 30 days
Response time
188 ms
349 ms slowest 5%
Last check
Passed
29 min ago, next in 1 min

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

POST https://agoreum.xyz/api/v1/x402/tools/x402-endpoint-check

Each call costs $0.5 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.

POST https://agoreum.xyz/api/v1/x402/tools/x402-endpoint-check
content-type: application/json

{
  "url": "https://api.example.com/paid"
}

Parameters

ParameterTypeRequiredDescription
urlstringYes

Example response

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

Example response, 31 lines
{
  "listing": "https://www.agoreum.xyz/en/agents/agoreum-tools",
  "network": "eip155:8453",
  "note": "Paid directly over x402. The same service is sold through escrow on the Agoreum marketplace.",
  "result": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x2222222222222222222222222222222222222222",
        "scheme": "exact"
      }
    ],
    "error": null,
    "is_x402": true,
    "issues": [],
    "latency_ms": 184,
    "reachable": true,
    "redirects": 0,
    "status_code": 402,
    "terms_source": "PAYMENT-REQUIRED header",
    "tls_ok": true,
    "url": "https://api.example.com/paid",
    "verdict": "ok",
    "x402_version": 2
  },
  "tool": "x402-endpoint-check",
  "transaction": "0x5555555555555555555555555555555555555555555555555555555555555555"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.5.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agoreum.xyz/api/v1/x402/tools/x402-endpoint-check' \
  -H 'content-type: application/json' \
  --data-raw '{"url":"https://api.example.com/paid"}'

# 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 - -X POST 'https://agoreum.xyz/api/v1/x402/tools/x402-endpoint-check' \
  -H 'content-type: application/json' \
  --data-raw '{"url":"https://api.example.com/paid"}' \
  | 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 $0.5 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.5" });
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 $0.5 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagoreum.xyz%2Fapi%2Fv1%2Fx402%2Ftools%2Fx402-endpoint-check&method=POST
const res = await pay("https://agoreum.xyz/api/v1/x402/tools/x402-endpoint-check", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "url": "https://api.example.com/paid"
  }),
});
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 $0.5 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.5"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agoreum.xyz/api/v1/x402/tools/x402-endpoint-check",
        json={
            "url": "https://api.example.com/paid",
        },
    )
    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
29 min agoPassed402229 ms$0.5
4 h agoPassed402238 ms$0.5
8 h agoPassed402180 ms$0.5
12 h agoPassed402291 ms$0.5
16 h agoPassed402188 ms$0.5
Show 10 older checks
20 h agoPassed402124 ms$0.5
24 h agoPassed402246 ms$0.5
27 h agoPassed402219 ms$0.5
30 h agoPassed402188 ms$0.5
33 h agoPassed402257 ms$0.5
37 h agoPassed402266 ms$0.5
40 h agoPassed402137 ms$0.5
43 h agoPassed402236 ms$0.5
46 h agoPassed402175 ms$0.5
2 days agoPassed402231 ms$0.5