Utility Luhn Check

Last 30 days

Uptime

100%

Response time

200 ms typical, 200 ms slowest 5%

Last check

45 min ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://dt0ur.online/api/utility/luhn-check" \
  -H "content-type: application/json" \
  -d '{"number":"4111 1111 1111 1111"}'

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 $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdt0ur.online%2Fapi%2Futility%2Fluhn-check
const res = await pay("https://dt0ur.online/api/utility/luhn-check", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"number":"4111 1111 1111 1111"}),
});
console.log(await res.json());

Example input

{
  "number": "4111 1111 1111 1111"
}

Example output

{
  "valid": true
}

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