chgwatch

Monitor public web pages for changes. One call checks many URLs; returns changed=true/false plus added/removed lines, so alert agents pay per poll instead of per page.

Open endpoint ↗

Price per call: $0.01
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.firstmention.uk/s/chgwatch/diffmulti", { method: "GET" });
console.log(await res.json());

https://api.firstmention.uk/s/chgwatch/diffmulti