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Mcp Server Cal

io.github.AIWerk/mcp-server-cal · v1.0.6

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

Connect Runs on your machine

Terminal
claude mcp add mcp-server-cal -e CAL_API_KEY=<CAL_API_KEY> -- npx -y @aiwerk/[email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "mcp-server-cal": {
      "command": "npx",
      "args": [
        "-y",
        "@aiwerk/[email protected]"
      ],
      "env": {
        "CAL_API_KEY": "<CAL_API_KEY>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "mcp-server-cal": {
      "command": "npx",
      "args": [
        "-y",
        "@aiwerk/[email protected]"
      ],
      "env": {
        "CAL_API_KEY": "<CAL_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-server-cal": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@aiwerk/[email protected]"
      ],
      "env": {
        "CAL_API_KEY": "<CAL_API_KEY>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
CAL_API_KEY
Required, secret
Cal.com API key (prefix cal_ or cal_live_). Create one at Cal.com Settings > Security > API Keys.

Details

Package@aiwerk/[email protected] (NPM, stdio)
First published22 Jun 2026
Last updated22 Jun 2026
Registry nameio.github.AIWerk/mcp-server-cal

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