You can access the Universal Price & Availability Change Monitor 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 Integrations settings 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    "targets": [
12        {
13            "url": "https://example.com",
14            "selector": "",
15            "label": "Example homepage"
16        }
17    ]
18};
19
20// Run the Actor and wait for it to finish
21const run = await client.actor("swholmes/universal-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

Universal Price & Availability Change Monitor API in JavaScript

The Apify API client for JavaScript is the official library that allows you to use Universal Price & Availability Change Monitor 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:

Universal Price & Availability Change Monitor API in Python

Universal Price & Availability Change Monitor API through CLI

Universal Price & Availability Change Monitor OpenAPI definition

Universal Price & Availability Change Monitor API

Website Change Monitor - Page Diff & Alerts

logiover/website-change-monitor

Monitor any website for content changes automatically.

Logiover

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.

Bikram Adhikari

E-commerce Price & Stock Monitor

monema/apify-stock-monitor

Monitor product pages for price drops, restocks, and availability changes with structured results and optional webhook alerts.

Maarten Vreeburg

Website Change Monitor — Content Diff & Alerts

accurate_pouch/website-change-monitor

Monitor websites for content changes. Text diff, hash comparison, CSS selector targeting. Webhook alerts when content changes. Use with Apify scheduling for daily monitoring. 5 URLs free.

Manchitt Sanan

Website Change Monitor - AI Page Diff Tracker

viralanalyzer/website-change-monitor

Monitor any website for changes. Visual diffs, AI change summaries.

viralanalyzer

5.0

Website Change Monitor: Track Page Changes, Pay Per Change

scrapemint/website-change-monitor

Monitor any list of web pages on a schedule and get a structured JSON row when a page changes: added and removed lines, previous and current text, timestamps. No browser, no CSS selector needed, no API key. Pay only for detected changes.

Ken M

Website Change Monitor

optimus-fulcria/website-change-monitor

Monitor websites for content changes. Full page, CSS selector, or text pattern matching. Diff summaries and alerts.

Fulcria Labs

Firecrawl Website Change Monitor - Track Page Changes with AI

alizarin_refrigerator-owner/firecrawl-website-change-monitor---track-page-changes-with-ai

Monitor websites for content changes. Get notified when pricing, inventory, competitor pages, or any web content changes. Uses Firecrawl for intelligent change detection. Markdown Comparison JSON Extraction Change Notifications Webhook Integration Scheduled Monitoring

The Howlers

WatchTower – Website Change & Price Monitor

hichemdev/watchtower-website-change-monitor

Monitor any website for changes - track competitor prices, stock/availability, and content updates with field-level precision. Get instant webhook alerts on any change, a price increase or drop, or when a keyword appears. Ideal for price monitoring, competitor intelligence, and compliance.

Hichem Ben Moussa

Shopify Product Change Tracker

foo121/shopify-change-events

Monitor any Shopify store for new/removed products, price changes and inventory (in/out of stock) — emitted as structured, webhook-ready change-events. Built for scheduled runs. Pay per result.