ToolVet
75trust / 100

X402 Integrity

by x402 Integrity Check in Security & trust

x402 APIPassing, checked 2 h ago

Call before trusting or paying a third-party x402 seller: catalog-vs-live integrity -- verify an x402 listing (payee, price, network, service, tags, bazaar block) against the live 402; an endpoint preflight for x402 catalog vs live offers, seller trust and listing consistency so an agent can skip dead or mismatched endpoints (JSON).

GET
https://conclavex402.pythonanywhere.com/v1/x402-integrity
Price
$0.009
per call in USDC
Uptime
100%
last 30 days
Response time
380 ms
483 ms 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://conclavex402.pythonanywhere.com/v1/x402-integrity

Each call costs $0.009 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://conclavex402.pythonanywhere.com/v1/x402-integrity

Example response

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

{
  "as_of": "2026-10-13T20:49:28Z",
  "catalog_total": 20108,
  "distinct_hosts": 1088,
  "hosts_checked": 25,
  "totals": {
    "amount_mismatch": 11,
    "bazaar_missing": 7,
    "checked": 200,
    "consistent": 103,
    "inconsistent": 64,
    "network_form_only": 13,
    "network_mismatch": 49,
    "served": 167,
    "unreachable": 33
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.009.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://conclavex402.pythonanywhere.com/v1/x402-integrity'

# 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://conclavex402.pythonanywhere.com/v1/x402-integrity' \
  | 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 $0.009 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.009" });
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 $0.009 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fconclavex402.pythonanywhere.com%2Fv1%2Fx402-integrity
const res = await pay("https://conclavex402.pythonanywhere.com/v1/x402-integrity");
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 $0.009 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.009"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://conclavex402.pythonanywhere.com/v1/x402-integrity")
    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 agoPassed402125 ms$0.009
7 h agoPassed402345 ms$0.009
12 h agoPassed402333 ms$0.009
17 h agoPassed402363 ms$0.009
22 h agoPassed402123 ms$0.009
Show 10 older checks
27 h agoPassed402127 ms$0.009
32 h agoPassed402411 ms$0.009
37 h agoPassed402380 ms$0.009
42 h agoPassed402138 ms$0.009
46 h agoPassed402483 ms$0.009
2 days agoPassed402407 ms$0.009
2 days agoPassed402120 ms$0.009
3 days agoPassed402130 ms$0.009
3 days agoPassed402452 ms$0.009
3 days agoPassed402348 ms$0.009