MCP Server Cal

by aiwerk Your server? Claim it

local only

MCP Server Cal runs on your own machine — the client starts it, so there is no endpoint to ping. 55 installs a week from npm. Last commit 10 Aug 2026.

Cal.com scheduling MCP server: manage bookings, event types, and availability.

Installs per day peak 24 · avg 9 · +40% w/w

a month agotoday

Installs / week

npm · @aiwerk/mcp-server-cal

Stars

0 open issues

10 Aug 2026

Last commit

0 releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check MCP Server Cal 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

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.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp-server-cal -- npx -y @aiwerk/mcp-server-cal

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

{
  "mcpServers": {
    "mcp-server-cal": {
      "args": [
        "-y",
        "@aiwerk/mcp-server-cal"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp-server-cal]
command = "npx"
args = ["-y", "@aiwerk/mcp-server-cal"]

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-server-cal": {
      "args": [
        "-y",
        "@aiwerk/mcp-server-cal"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp-server-cal": {
      "args": [
        "-y",
        "@aiwerk/mcp-server-cal"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: CAL_API_KEY (Cal.com API key (prefix cal_ or cal_live_). Create one at Cal.com Settings > Security > API Keys.). The author declared them in the registry entry; get the values from the project itself.

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MCP Server Cal — questions

Answers built from our own checks of this server.

Why is there no uptime for MCP Server Cal?

MCP Server Cal 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 @aiwerk/mcp-server-cal was installed 55 times last week.

How do I connect MCP Server Cal?

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 @aiwerk/mcp-server-cal straight from npm; nothing to host, nothing to sign up for.

How many people use MCP Server Cal?

The npm package @aiwerk/mcp-server-cal was installed 55 times in the last week. Week over week that is +40%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is MCP Server Cal open source?

Yes — it is published under the MIT licence, written in TypeScript 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.