kestrel

dev.workers.perch-app.kestrel/kestrelVersion 1.0.0

Watch any URL for changes: baseline, then check for a diff. Free, no signup/key.

Status

Responds107 msNov 14, 2026, 14:29 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 14:29 UTC
Latency: 107 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://kestrel.perch-app.workers.dev/mcpResponds107 msNov 14, 2026, 14:29 UTC

No sign-in

Claude Code

claude mcp add --transport http kestrel https://kestrel.perch-app.workers.dev/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: kestrel
Remote MCP server URL: https://kestrel.perch-app.workers.dev/mcp

Cursor

{
  "mcpServers": {
    "kestrel": {
      "url": "https://kestrel.perch-app.workers.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"kestrel","type":"http","url":"https://kestrel.perch-app.workers.dev/mcp"}'

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Tools

4 tools

Tools of kestrel
	Description		Read-only	Idempotent	Open world
`check_watch`Re-fetch a watched page and report whether it changed since the last check, with a short list of added/removed content lines. Updates the baseline to the new content. Call this every time you want the latest status (e.g. each run/heartbeat).	Re-fetch a watched page and report whether it changed since the last check, with a short list of added/removed content lines. Updates the baseline to the new content. Call this every time you want the latest status (e.g. each run/heartbeat).	Not declared	Not declared	Not declared	Not declared
`create_watch`Start monitoring a web page (or JSON/text URL) for changes. Captures a baseline snapshot now. Returns a watch_id and a token — save the token; it's how you check and manage your watches later. Pass an existing token to add more watches under the same account.	Start monitoring a web page (or JSON/text URL) for changes. Captures a baseline snapshot now. Returns a watch_id and a token — save the token; it's how you check and manage your watches later. Pass an existing token to add more watches under the same account.	Not declared	Not declared	Not declared	Not declared
`delete_watch`Stop monitoring a page and delete the watch.	Stop monitoring a page and delete the watch.	Not declared	Not declared	Not declared	Not declared
`list_watches`List all watches under your token, with per-watch check/change counts.	List all watches under your token, with per-watch check/change counts.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Sep 22, 2026
Updated: Sep 22, 2026
Website: https://kestrel.perch-app.workers.dev/⁠ (opens in a new tab)
Repository: Not given
Categories: Uncategorized
GDPR: Not declared

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