SiteSpy
AI-powered website change monitoring with RSS feeds and visual diffs
- Category
- Developer Tools
- Launched
- March 11, 2026
- Stage
- Pre-seed
- Pricing
- freemium
- Founder
- vkuprin
- Website
- sitespy.app
Site Spy is a website change monitoring tool that tracks webpages for updates and notifies you when content changes. It uses AI to filter out noise (timestamps, cookie banners, dynamic ads) and focuses on what you specify in plain English — like "price drops", "new listings", or "when tickets go on sale". The tool provides visual diff highlighting (additions in green, removals in red), a snapshot timeline for comparing versions, and RSS feeds for each watched page. It also offers an MCP server for integration with AI assistants like Claude and Cursor.
Discovered via
- Hacker News Show HN · · Show HN: I built a tool that watches webpages and exposes changes as RSS