---
title: "Developer Tools & APIs"
slug: "developer-tools"
type: "actor-category"
url: "https://automationbyexperts.com/apify/category/developer-tools"
actor_count: 6
---

# Scraping API & Monitoring Actors for Developers

These are the general-purpose building blocks. The universal scraper API fetches any site with rotating anti-bot proxies, JavaScript rendering, screenshots, CSS selectors and AI extraction, returning clean HTML, Markdown or JSON. The website change monitor watches any page - competitor pricing, product pages, terms of service, job boards - and returns a diff of exactly what was added and removed, with a severity score. Dataset Diff sits on top of any other Apify actor and returns only the rows that are new, changed or removed since its last run, with alerts to Slack, Discord, Telegram or a webhook.

## Actors in this category (6)

- [Dataset Diff - Only New & Changed Items From Any Actor](https://automationbyexperts.com/apify/dataset-diff): Point it at any Apify Actor, task or dataset and it returns only what changed since the last run - new rows, edited r… - $2e-05 per item compared, 191 runs
- [Website Change Monitor - Page & Price Change Alerts](https://automationbyexperts.com/apify/website-change-monitor): It monitors any web page for changes - competitor pricing, products, terms of service, job boards - and returns a cle… - $0.002 per result, 94 runs
- [Scrape Any Site - Anti-Bot Proxy, JS Render & AI](https://automationbyexperts.com/apify/scrape-any-site-anti-bot-proxy-js-render-ai): It is a free web scraper API for any website - rotating anti-bot proxies, JavaScript rendering, screenshots, and both… - Free no charge, 11 runs
- [New Business License Feed: Fresh Openings by City](https://automationbyexperts.com/apify/business-license-feed): Every business, food, liquor and trade license newly issued in Chicago, Los Angeles, New York, Seattle and New Orlean… - $0.002 per new license record, 2 runs
- [EU VAT Number Validation: Bulk VIES Check & Supplier Monitor](https://automationbyexperts.com/apify/eu-vat-compliance-monitor): Validate a whole supplier or customer list against VIES, get the consultation number that proves you checked, and be … - $0.003 per vat number checked, 2 runs
- [License Verification & Expiry Monitor: Bulk US License Lookup](https://automationbyexperts.com/apify/license-roster-monitor): Re-verify a whole roster of contractors, nurses, agents or providers against official state registries, then get only… - $0.004 per license verified, 2 runs

## FAQ

### Can I call these from my own code?

Yes. Every Apify actor has a REST API endpoint and official Python and JavaScript clients, so you can trigger runs and read datasets from your own application.

### Does the scraper API handle JavaScript-rendered pages?

Yes - it renders JavaScript, can return screenshots, and supports both CSS-selector and AI-based extraction, returning clean HTML, Markdown or structured JSON.

### What does the change monitor detect?

It returns a clean diff of added and removed content between runs, with a severity score, so you can alert only on meaningful changes like a price or a policy edit.

### Do I need to manage proxies?

No. Rotating anti-bot proxies are built in and managed by the platform.

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[All categories and actors](https://automationbyexperts.com/apify)