Koskamo

calendar-mcp-server

A community-built MCP server providing 23 tools for LLM agents to manage Google Calendar. It supports listing, searching, creating, updating, moving, RSVPing to, and deleting events. Features include free/busy queries, busyness analysis, recurring-event projection, and intelligent scheduling capabilities like finding mutual slots and booking focus time while respecting working hours and avoiding double-bookings.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

calendar-mcp-server logo, by deciduusCommunity listingLocal stdioSource reviewed; not executedPublished by deciduus
You need:Create Google OAuth credentialsenable the Google Calendar APIcreate an OAuth client ID of type Desktop app
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 27 GitHub stars

What you can do with it

  • List and search calendars and events
  • Create, update, or delete calendar events
  • Find free/busy time slots for scheduling
  • Book focus time or mutual meeting slots

Source and maintenance

Community listingRegistry 1.0.1
mcp-registry: io.github.deciduus/calendar-mcp@1.0.1Source repository
Last repository push
Latest release
v1.1.1
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

calendar-mcp-server 1.0.1

pypiuvx
calendar-mcp-server package definition
{
  "version": "1.0.1",
  "transport": "stdio",
  "identifier": "calendar-mcp-server",
  "runtimeHint": "uvx",
  "registryType": "pypi",
  "registryBaseUrl": "https://pypi.org",
  "environmentVariables": [
    {
      "name": "GOOGLE_CLIENT_ID",
      "isRequired": true,
      "description": "OAuth 2.0 client ID for a Google Cloud project with the Google Calendar API enabled."
    },
    {
      "name": "GOOGLE_CLIENT_SECRET",
      "isRequired": true,
      "description": "OAuth 2.0 client secret matching GOOGLE_CLIENT_ID."
    },
    {
      "name": "TOKEN_FILE_PATH",
      "default": ".gcp-saved-tokens.json",
      "description": "Path to the saved OAuth token file written by 'calendar-mcp auth'."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "calendar-mcp-server": {
      "command": "uvx",
      "args": [
        "calendar-mcp-server==1.0.1"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<YOUR_GOOGLE_CLIENT_ID>",
        "GOOGLE_CLIENT_SECRET": "<YOUR_GOOGLE_CLIENT_SECRET>",
        "TOKEN_FILE_PATH": "<YOUR_TOKEN_FILE_PATH>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "calendar-mcp-server": {
      "command": "uvx",
      "args": [
        "calendar-mcp-server==1.0.1"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<YOUR_GOOGLE_CLIENT_ID>",
        "GOOGLE_CLIENT_SECRET": "<YOUR_GOOGLE_CLIENT_SECRET>",
        "TOKEN_FILE_PATH": "<YOUR_TOKEN_FILE_PATH>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "calendar-mcp-server": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "calendar-mcp-server==1.0.1"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<YOUR_GOOGLE_CLIENT_ID>",
        "GOOGLE_CLIENT_SECRET": "<YOUR_GOOGLE_CLIENT_SECRET>",
        "TOKEN_FILE_PATH": "<YOUR_TOKEN_FILE_PATH>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "calendar-mcp-server": {
      "command": "uvx",
      "args": [
        "calendar-mcp-server==1.0.1"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<YOUR_GOOGLE_CLIENT_ID>",
        "GOOGLE_CLIENT_SECRET": "<YOUR_GOOGLE_CLIENT_SECRET>",
        "TOKEN_FILE_PATH": "<YOUR_TOKEN_FILE_PATH>"
      }
    }
  }
}

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