ToolVet
80trust / 100

Random Number

by quantum.halowerk.com in Onchain & crypto

x402 APIPassing, checked 4 h ago

Counts zeros, ones and runs, reports a normalized monobit imbalance, and compares observed runs with the IID Bernoulli expectation. It generates no random number and is not a NIST test-suite replacement, entropy estimate or certification of cryptographic randomness.

POST
https://quantum.halowerk.com/v1/random-number
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
126 ms
180 ms slowest 5%
Last check
Passed
4 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

POST https://quantum.halowerk.com/v1/random-number

Each call costs $0.002 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://quantum.halowerk.com/v1/random-number
content-type: application/json

{
  "bits": "01101001100101101001011010011010"
}

Parameters

ParameterTypeRequiredDescription
bitsstringYesCaller-supplied bitstream to diagnose.

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://quantum.halowerk.com/v1/random-number' \
  -H 'content-type: application/json' \
  --data-raw '{"bits":"01101001100101101001011010011010"}'

# 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://quantum.halowerk.com/v1/random-number' \
  -H 'content-type: application/json' \
  --data-raw '{"bits":"01101001100101101001011010011010"}' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fquantum.halowerk.com%2Fv1%2Frandom-number&method=POST
const res = await pay("https://quantum.halowerk.com/v1/random-number", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "bits": "01101001100101101001011010011010"
  }),
});
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://quantum.halowerk.com/v1/random-number",
        json={
            "bits": "01101001100101101001011010011010",
        },
    )
    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
4 h agoPassed402112 ms$0.002
13 h agoPassed402130 ms$0.002
17 h agoPassed402106 ms$0.002
22 h agoPassed402111 ms$0.002
26 h agoPassed402138 ms$0.002
Show 10 older checks
30 h agoPassed402118 ms$0.002
34 h agoPassed402135 ms$0.002
38 h agoPassed402101 ms$0.002
42 h agoPassed402159 ms$0.002
46 h agoPassed402123 ms$0.002
2 days agoPassed402124 ms$0.002
2 days agoPassed402180 ms$0.002
2 days agoPassed402166 ms$0.002
3 days agoPassed402289 ms$0.002
3 days agoPassed402136 ms$0.002