SiteCheck

Searches the US eCFR by keyword or retrieves the current text of a specific section (title, part, section) via the official eCFR API. Returns hierarchy, heading, text (max 50,000 characters), last amended date, and official URL. Coverage: current CFR as published on ecfr.gov.

Open endpoint ↗

Price per call: $0.003
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://api.sitecheck-api.workers.dev/api/law/ecfr", { method: "GET" });
console.log(await res.json());

https://api.sitecheck-api.workers.dev/api/law/ecfr