Site Spy is a website change tracking tool that monitors webpages on a schedule and notifies users when content changes. It offers visual diffs (additions in green, removals in red), element-level tracking for specific page sections, a snapshot timeline, and a cross-device web dashboard. Available as a Chrome/Firefox extension and web app, it supports push notifications, email, and Telegram alerts. It also provides an MCP server for integration with AI assistants like Claude and Cursor. Free plan covers 5 URLs with hourly checks; paid plans (€4–€8/mo) offer faster intervals, more watches, and additional notification channels.
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