Lookproof

Classify an IPv4 or IPv6 address by IANA's special-purpose registries (private, loopback, link-local, shared, documentation, 6to4, Teredo, NAT64 and more, with the RFC), with compressed and expanded forms, the reverse DNS name and the IPv4 form of an IPv4-mapped address. Offline. Use when an agent must tell whether an address is public. Input: ?ip=192.0.2.1.

Open endpoint ↗

Price per call: $0.002
Chain: Base
Method: GET
Paid calls · 30 days: 1

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://api.lookproof.dev/v1/ip/info", { method: "GET" });
console.log(await res.json());

https://api.lookproof.dev/v1/ip/info