x402-domain-check.vercel.app

US healthcare provider lookup in the CMS NPPES NPI Registry: by NPI number, or by name/organization, specialty (taxonomy), city, state or ZIP. Returns NPI, individual/organization, name, credential, status, primary and all taxonomies with state license numbers, practice address and phone. Not charged on errors.

Open endpoint ↗

Price per call: $0.02
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://x402-domain-check.vercel.app/providers/npi", { method: "GET" });
console.log(await res.json());

https://x402-domain-check.vercel.app/providers/npi