Kestrel MCP Server

by workers-perch-app-kestrel Your server? Claim it

answering

Kestrel is answering right now. Last checked 10 min ago. It exposes 4 tools.

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

Uptime history 12 hours of history · worst hour 50%

12 hours agonow

93.0%

Uptime 24h

40 of 43 checks

Tools

read from the server

105 ms

Response time

average over 24h

open, no key

Access

streamable-http

Kestrel does not always answer

Over the last week it answered 93.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

[mcp_servers.kestrel]
url = "https://kestrel.perch-app.workers.dev/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

watch

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).

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.

delete_watch

Stop monitoring a page and delete the watch.

watches

list_watches

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

Endpoints

URL	Transport	State	Latency	Checked
https://kestrel.perch-app.workers.dev/mcp	streamable-http	answering	124 ms	10 min ago

Alternatives to Kestrel

same job, measured the same way

Docracy

by docracy1

Free, no-signup e-signatures. check_status free for anyone; find_documents needs paid key.

4 tools answering

Agent Access Index

by agentwares

Whether an AI agent may fetch a URL, on what terms, and at what price. Free, no key, no signup.

3 tools answering

Austin Oaks Page Watch

by freshypenguin

Watch a public web page for changes when your agent cannot stay running. Hourly checks, signed diffs

3 tools answering

snooze

by snooze

Watch domains and forecast when they drop; check a name's domain, handles, and trademark.

5 tools answering

Agent Payment

by evidai

Stripe-style USDC billing for any API. 8 free demo services no signup. Non-custodial.

39 installs/wk local only

Forage

by forage

Web search and URL-to-markdown for agents. Pay per call in USDC on Base, no signup.

2 tools answering

by veezee

LinkedIn data for AI agents: search, profiles, companies, posts. Free key, self-minted, no signup.

answering

Reqbeat Hiring Signals

by reqbeat

Find companies hiring for a role and geo, qualify them, and watch them for changes.

14 tools answering

Kestrel — questions

Answers built from our own checks of this server.

What can Kestrel do?

It exposes 4 tools, read directly from the server on our last check. Among them: check_watch, create_watch, delete_watch, list_watches. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Kestrel working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 40 of 43 checks got a reply (93.0%), average response time 105 ms. The bar chart above shows every period we have measured.

How do I connect Kestrel?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Kestrel need an API key?

No. Kestrel completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Kestrel?

It answers our handshake in 105 ms on average, which is faster than 92% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.