ToolVet
81trust / 100

Channel Audit

by HALOWERK x402werk in Onchain & crypto

x402 APIPassing, checked 3 h ago

Checks vouchers of a payment channel by computation only - nothing is ever claimed, redeemed or refunded. Signatures are verified cryptographically against the address each voucher claims to be signed by, in EIP-712 form when the typed data is supplied, otherwise as a plain message signature. Double spending is the expensive case and is checked in full: every voucher id occurring more than once is reported with all its occurrences and whether the duplicates agree on the amount. Sums are added up

POST https://x402.halowerk.com/channel/audit

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
115 ms typical, 115 ms slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://x402.halowerk.com/channel/audit" \
  -H "content-type: application/json" \
  -d '{"vouchers":[{"amount":"1000000","id":"beispiel","signed_by":"beispiel"}]}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402.halowerk.com%2Fchannel%2Faudit
const res = await pay("https://x402.halowerk.com/channel/audit", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"vouchers":[{"amount":"1000000","id":"beispiel","signed_by":"beispiel"}]}),
});
console.log(await res.json());

Example input

{
  "vouchers": [
    {
      "amount": "1000000",
      "id": "beispiel",
      "signed_by": "beispiel"
    }
  ]
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402115 ms$0.006