PatentPulse

Patent status lookup / legal status / remaining patent life / expiry by patent number. Returns full patent details (title, type, claims, CPC/USPC classes, assignees, inventors, abstract), an estimated ~20-year expiry and years remaining, plus maintenance and citation profile for any US patent ID. For IP and patent agents.

Open endpoint ↗

Price per call: $0.05
Chain: Base
Method: GET
Paid calls · 30 days: 2

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://patentpulse.theaslangroupllc.com/api/patent/status", { method: "GET" });
console.log(await res.json());

https://patentpulse.theaslangroupllc.com/api/patent/status