Mmcp.market

Kestrel MCP server

by kestrel.perch-app.workers.dev·dev.workers.perch-app.kestrel/kestrel·v1.0.0
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Watch any URL for changes: baseline, then check for a diff. Free, no signup/key.

C60/100grade C
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Safety scan
C60/100

full report

Adoption
New

Little public usage data yet

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

Kestrel tools (4, 2 write)

write = sends, deletes, buys or posts
  • check_watchFree

    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).

  • create_watchwrite actionFree

    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.

  • delete_watchwrite actionFree

    Stop monitoring a page and delete the watch.

  • list_watchesFree

    List all watches under your token, with per-watch check/change counts.

Public scan report

scanner v0.1.9 · 2026-09-22 · same rubric, same numbers if you re-run it

1 high1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 318ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 2 write-action tools with no auth3/15
  • Maintenanceno repository listed3/15
  • Maintainer identityverified namespace with website, no repo4/10

Findings (2)

  • highWrite-action tools reachable without authenticationauth.open-write
  • lowNo source repository listedmaint.no-repo
Overall 60/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

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

Kestrel: common questions

Is Kestrel MCP server safe?
With care: it is graded C, so read the findings first (60/100). Read the Kestrel safety report
How do I install Kestrel?
It runs remotely at kestrel.perch-app.workers.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Kestrel need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Kestrel maintained?
The latest release is v1.0.0.
Is Kestrel up?
100% of our last 9 checks got an answer. We check remote servers about four times a day.

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