Cronitor MCP Server

by usefulapi Your server? Claim it

answering

Cronitor is answering right now. Last checked 9 min ago. It exposes 6 tools. Last commit 1 Sep 2026.

Manage Cronitor monitors and send telemetry pings — list, inspect, create, update, delete.

Uptime history 47 days of history · worst day 13%

47 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

159 ms

Response time

average over 24h

Stars

last commit 1 Sep 2026

Nothing serious here today

Today is the operative word: we check Cronitor every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add cronitor --transport http https://cronitor.usefulapi.io/mcp

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

{
  "mcpServers": {
    "cronitor": {
      "url": "https://cronitor.usefulapi.io/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.cronitor]
url = "https://cronitor.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "cronitor": {
      "url": "https://cronitor.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "cronitor": {
      "url": "https://cronitor.usefulapi.io/mcp"
    }
  }
}

Available tools 6

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

cronitor

cronitor_create_monitor

Creates a monitor in Cronitor (additive). Cronitor API: POST /monitors. Sends only the fields you provide.

cronitor_delete_monitor

PERMANENTLY deletes a monitor from Cronitor. Destructive and irreversible. Cronitor API: DELETE /monitors/{key}.

cronitor_get_monitor

Get full detail for one monitor (latest_event, latest_invocations, passing status) — the 'is X healthy right now?' tool. Cronitor API: GET /monitors/{key}.

cronitor_list_monitors

List monitors and their current passing/failing status. Cronitor API: GET /monitors (paginated via page + pageSize).

cronitor_ping_monitor

Reports a telemetry event (run/complete/fail/ok/pause) for a monitor — records job/heartbeat activity and can clear or trigger alerts. Cronitor telemetry: GET {telemetryUrl}/p/{apiKey}/{monitorKey}?state=...

cronitor_update_monitor

Creates or updates a monitor by key (e.g. change schedule, pause via paused:true). Cronitor API: PUT /monitors with a single monitor object. Sends only the fields you provide.

Endpoints

URL	Transport	State	Latency	Checked
https://cronitor.usefulapi.io/mcp	streamable-http	answering	310 ms	9 min ago

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Cronitor — questions

Answers built from our own checks of this server.

What can Cronitor do?

It exposes 6 tools, read directly from the server on our last check. Among them: cronitor_create_monitor, cronitor_delete_monitor, cronitor_get_monitor, cronitor_list_monitors, cronitor_ping_monitor, cronitor_update_monitor. 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 Cronitor working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 159 ms. The bar chart above shows every period we have measured.

How do I connect Cronitor?

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 Cronitor need an API key?

No. Cronitor completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Cronitor?

It answers our handshake in 159 ms on average, which is faster than 75% 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.

Is Cronitor open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.