Connect Kestrel and your agent gets 4 tools, among them check_watch, create_watch, delete_watch. It answers at https://kestrel.perch-app.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 23 September 2026; the last check, on 7 November 2026, succeeded.
Watch any URL for changes: baseline, then check for a diff. Free, no signup/key.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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) Inputs: watch_id, token |
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 unde Inputs: url, label, token |
delete_watch | Stop monitoring a page and delete the watch. Inputs: watch_id, token |
list_watches | List all watches under your token, with per-watch check/change counts. Inputs: token |
Every block below points at https://kestrel.perch-app.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http kestrel https://kestrel.perch-app.workers.dev/mcp
{
"mcpServers": {
"kestrel": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://kestrel.perch-app.workers.dev/mcp"]
}
}
}{
"mcpServers": {
"kestrel": {
"url": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}{
"servers": {
"kestrel": {
"type": "http",
"url": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}{
"context_servers": {
"kestrel": {
"url": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}{
"mcpServers": {
"kestrel": {
"serverUrl": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}{
"mcpServers": {
"kestrel": {
"url": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}name: Kestrel
version: 0.0.1
schema: v1
mcpServers:
- name: Kestrel
type: streamable-http
url: https://kestrel.perch-app.workers.dev/mcp{
"mcpServers": {
"kestrel": {
"httpUrl": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}{
"mcpServers": {
"kestrel": {
"type": "http",
"url": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}{
"mcpServers": {
"kestrel": {
"url": "https://kestrel.perch-app.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fkestrel.perch-app.workers.dev%2Fmcp&type=streamable_http&id=kestrel&name=Kestrel
It answered our last check on 7 November 2026 in 225 ms. Over 4 checks since 23 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.
4, as returned by the server's own tools/list on 13 November 2026: check_watch, create_watch, delete_watch, list_watches.
It answered our last check on 7 November 2026 in 225 ms. Over 4 checks since 23 September 2026 it answered 4.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://kestrel.perch-app.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: dev.workers.perch-app.kestrel. Endpoint host: kestrel.perch-app.workers.dev. ARD identifier: urn:air:dev.workers.perch-app.kestrel:mcp:kestrel.
First indexed 22 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.