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Calendarmcp MCP Server

local only

Calendarmcp runs on your own machine — the client starts it, so there is no endpoint to ping. 23 installs a week from npm. Last commit 2 Sep 2026.

MCP server for macOS Calendar.app — calendar and event management via AppleScript

Installs per day peak 14 · avg 4 · +131% w/w
a month agotoday
23
Installs / week
npm · @aernoud/calendarmcp
5
Stars
0 open issues
2 Sep 2026
Last commit
0 releases in 90 days
MIT
License
TypeScript

Nothing serious here today

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

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add calendarmcp -- npx -y @aernoud/calendarmcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "calendarmcp": {
      "args": [
        "-y",
        "@aernoud/calendarmcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.calendarmcp]
command = "npx"
args = ["-y", "@aernoud/calendarmcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "calendarmcp": {
      "args": [
        "-y",
        "@aernoud/calendarmcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "calendarmcp": {
      "args": [
        "-y",
        "@aernoud/calendarmcp"
      ],
      "command": "npx"
    }
  }
}

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Calendarmcp — questions

Answers built from our own checks of this server.

Why is there no uptime for Calendarmcp?
Calendarmcp runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @aernoud/calendarmcp was installed 23 times last week.
How do I connect Calendarmcp?
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 runs locally, so the command pulls @aernoud/calendarmcp straight from npm; nothing to host, nothing to sign up for.
How many people use Calendarmcp?
The npm package @aernoud/calendarmcp was installed 23 times in the last week. Week over week that is +131%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Calendarmcp open source?
Yes — it is published under the MIT licence, written in TypeScript and 5 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.