Hmac

Last 30 days

Uptime

100%

Response time

185 ms typical, 185 ms slowest 5%

Last check

1 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/hmac" \
  -H "content-type: application/json" \
  -d '{"algo":"sha256","key":"secret","text":"payload"}'

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%2Fagent402.tools%2Fapi%2Fhmac
const res = await pay("https://agent402.tools/api/hmac", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"algo":"sha256","key":"secret","text":"payload"}),
});
console.log(await res.json());

Example input

{
  "algo": "sha256",
  "key": "secret",
  "text": "payload"
}

Example output

{
  "algo": "sha256",
  "base64": "97w…",
  "hex": "f7bc…"
}

Security scan

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

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