Sign

Last 30 days

Uptime

100%

Response time

812 ms typical, 895 ms slowest 5%

Last check

14 min ago

Next check

in 16 min

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://fractalai.net.co/api/x402/sign" \
  -H "content-type: application/json" \
  -d '{"message":"hello agent economy"}'

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%2Ffractalai.net.co%2Fapi%2Fx402%2Fsign
const res = await pay("https://fractalai.net.co/api/x402/sign", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"message":"hello agent economy"}),
});
console.log(await res.json());

Example input

{
  "message": "hello agent economy"
}

Example output

{
  "algorithm": "ml-dsa-65",
  "digest": "9f86…",
  "public_key": "BASE64_ML_DSA65_1952B",
  "signature": "BASE64_ML_DSA65_3309B"
}

Security scan

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

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