Watched
API-first website change detection with native MCP support
What it does
Point it at any URL, and it watches for changes — then notifies you via webhook, email, Telegram, or Discord. Most change detection tools (Distill, Visualping, Hexowatch) are UI-first dashboards. Great for individuals, terrible for automation. Watched is built for developers who want to integrate monitoring into code, CI/CD pipelines, or AI agents. Watched ships with a built-in MCP server. Any MCP-compatible AI agent can create, list, update, and delete watches using native tools.
Does the same job
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- IBI built a tool that watches webpages and exposes changes as RSSMar 2026 · sitespy.app · ▲320
I built Site Spy after missing a visa appointment slot because a government page changed and I didn’t notice for two weeks. It watches webpages for changes and shows the result like a diff. The part I think HN might find interesting is that it can monitor a specific element on a page, not just the whole page, and it can expose changes as RSS feeds. So instead of tracking an entire noisy page, you can watch just a price, a stock status, a headline, or a specific content block. When it changes, you can inspect the diff, browse the snapshot history, or follow the updates in an RSS reader. It’s…
- CIChangedetection.io detect changes in websites and JSON feeds2022 · github.com · ▲147
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