Validate Isbn

Last 30 days

Uptime

100%

Response time

179 ms typical, 179 ms slowest 5%

Last check

5 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://x402.agentindex.world/validate/isbn" \
  -H "content-type: application/json" \
  -d '{"isbn":"0-306-40615-2"}'

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%2Fx402.agentindex.world%2Fvalidate%2Fisbn
const res = await pay("https://x402.agentindex.world/validate/isbn", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"isbn":"0-306-40615-2"}),
});
console.log(await res.json());

Example input

{
  "isbn": "0-306-40615-2"
}

Example output

{
  "format": "ISBN-10",
  "valid": true
}

Security scan

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

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