ToolVet
75trust / 100

Statement

by TenPrint in Security & trust

x402 APIPassing, checked 3 h ago

Signed monthly x402 spend statement for one agent: totals, per-payment lines, Merkle root. The statement is itself an ML-DSA-65 attestation anchored to Hedera mainnet HCS. Render, verify, and print the response free at https://rubric-protocol.com/statement.html

POST
https://rubric-protocol.com/v1/x402/statement
Price
$0.5
per call in USDC
Uptime
100%
last 30 days
Response time
394 ms
474 ms slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://rubric-protocol.com/v1/x402/statement

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://rubric-protocol.com/v1/x402/statement
content-type: application/json

{
  "agentId": "acme-underwriter-01",
  "format": "json",
  "period": "2026-07"
}

Example response

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

{
  "algorithm": "ML-DSA-65",
  "attestationId": "att_…",
  "lines": [],
  "paid": true,
  "settled": true,
  "statement": {
    "merkleRoot": "0x…",
    "period": "2026-07",
    "totalUsd": 1.23
  },
  "success": true,
  "verifyUrl": "https://rubric-protocol.com/v1/verify/att_…"
}

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://rubric-protocol.com/v1/x402/statement' \
  -H 'content-type: application/json' \
  --data-raw '{"agentId":"acme-underwriter-01","format":"json","period":"2026-07"}'

# 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://rubric-protocol.com/v1/x402/statement' \
  -H 'content-type: application/json' \
  --data-raw '{"agentId":"acme-underwriter-01","format":"json","period":"2026-07"}' \
  | 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%2Frubric-protocol.com%2Fv1%2Fx402%2Fstatement&method=POST
const res = await pay("https://rubric-protocol.com/v1/x402/statement", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "agentId": "acme-underwriter-01",
    "format": "json",
    "period": "2026-07"
  }),
});
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://rubric-protocol.com/v1/x402/statement",
        json={
            "agentId": "acme-underwriter-01",
            "format": "json",
            "period": "2026-07",
        },
    )
    print(res.status_code, res.text)

Security scan

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Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402386 ms$0.5
7 h agoPassed402347 ms$0.5
12 h agoPassed402382 ms$0.5
16 h agoPassed402394 ms$0.5
21 h agoPassed402403 ms$0.5
Show 10 older checks
25 h agoPassed402356 ms$0.5
29 h agoPassed402394 ms$0.5
33 h agoPassed402432 ms$0.5
38 h agoPassed402423 ms$0.5
42 h agoPassed402378 ms$0.5
46 h agoPassed402398 ms$0.5
2 days agoPassed402406 ms$0.5
2 days agoPassed402386 ms$0.5
2 days agoPassed402380 ms$0.5
3 days agoPassed402350 ms$0.5