X402 Integrity
by x402 Integrity Check in Security & trust
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).
https://conclavex402p04.pythonanywhere.com/v1/x402-integrity- Price
- $0.009
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 391 ms
- 456 ms slowest 5%
- Last check
- Passed
- 31 min ago, next any minute now
Reliability
Status and outage history · Atom feed · Watch with other listings
How to call it
GET https://conclavex402p04.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://conclavex402p04.pythonanywhere.com/v1/x402-integrityExample 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://conclavex402p04.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://conclavex402p04.pythonanywhere.com/v1/x402-integrity' \
| grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decodeJavaScript: 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%2Fconclavex402p04.pythonanywhere.com%2Fv1%2Fx402-integrity
const res = await pay("https://conclavex402p04.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://conclavex402p04.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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 31 min ago | Passed | 402 | 426 ms | $0.009 |
| 6 h ago | Passed | 402 | 370 ms | $0.009 |
| 11 h ago | Passed | 402 | 456 ms | $0.009 |
| 16 h ago | Passed | 402 | 424 ms | $0.009 |
| 22 h ago | Passed | 402 | 421 ms | $0.009 |
Show 10 older checks
| 27 h ago | Passed | 402 | 423 ms | $0.009 |
| 31 h ago | Passed | 402 | 386 ms | $0.009 |
| 36 h ago | Passed | 402 | 425 ms | $0.009 |
| 41 h ago | Passed | 402 | 363 ms | $0.009 |
| 45 h ago | Passed | 402 | 405 ms | $0.009 |
| 2 days ago | Passed | 402 | 368 ms | $0.009 |
| 2 days ago | Passed | 402 | 336 ms | $0.009 |
| 2 days ago | Passed | 402 | 399 ms | $0.009 |
| 3 days ago | Passed | 402 | 393 ms | $0.009 |
| 3 days ago | Passed | 402 | 391 ms | $0.009 |