You can access the Website Change Monitor — Compare Page Updates programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1import { ApifyClient } from 'apify-client';
2
3// Initialize the ApifyClient with your Apify API token
4// Replace the '<YOUR_API_TOKEN>' with your token
5const client = new ApifyClient({
6    token: '<YOUR_API_TOKEN>',
7});
8
9// Prepare Actor input
10const input = {
11    "url": "https://example.com/",
12    "previousContent": "Example Domain",
13    "baselineKey": "homepage",
14    "saveBaseline": false,
15    "focusTerms": [
16        "pricing"
17    ]
18};
19
20// Run the Actor and wait for it to finish
21const run = await client.actor("encouraged_offspring/website-change-monitor").call(input);
22
23// Fetch and print Actor results from the run's dataset (if any)
24console.log('Results from dataset');
25console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
26const { items } = await client.dataset(run.defaultDatasetId).listItems();
27items.forEach((item) => {
28    console.dir(item);
29});
30
31// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

Website Change Monitor — Compare Page Updates API in JavaScript

The Apify API client for JavaScript is the official library that allows you to use Website Change Monitor — Compare Page Updates API in JavaScript or TypeScript, providing convenience functions and automatic retries on errors.

Install the apify-client

$npm install apify-client

Other API clients include:

Website Change Monitor — Compare Page Updates API in Python

Website Change Monitor — Compare Page Updates API through CLI

Website Change Monitor — Compare Page Updates OpenAPI definition

Website Change Monitor — Compare Page Updates API

Public Website Change & Compliance Monitor

futurefortune/public-website-change-compliance-monitor

Monitor public web pages, persist a baseline, and return compact change events for meaningful content changes.

Liam King

Website Change & Compliance Monitor

monema/apify-change-monitor

Monitor public pages, policy documents, listings, and competitor content for meaningful changes with persistent state and webhook alerts.

Maarten Vreeburg

Website Change Monitor

yearly_register/website-change-monitor

Monitor public webpages for content changes, compare snapshots, and output structured change records for scheduled alerts and workflows.

Automation Tech

Website Change Intelligence Monitor

woolly_kingcrab/website-change-intelligence-monitor

Monitor public web pages and detect meaningful text, title, metadata, and link changes between runs.

sakthi kumar

Website Change Tracker – Competitor & Content Monitor

conceivable_extension/website-change-tracker

Monitor any web page for content changes. Detects price updates, policy edits, competitor announcements, and new content. Stores page snapshots and alerts on meaningful diffs. PPE: $0.002 no change, $0.008 changed.

joseph fadero

Web Page Change Monitor - Track Website Changes & Get Alerts

scrappy_garden/web-page-change-monitor

Monitor any website for changes automatically. Track content updates, price changes, product availability, news updates. Get instant alerts when pages change. Perfect for competitor monitoring, price tracking, content surveillance, and automated change detection. Export change history to JSON.