Calendar MCP Server

by deciduusio.github.deciduus/calendar-mcpv1.0.1

Google Calendar for LLM agents: find, create, update, move, delete events; free/busy; scheduling.

26Pythonstdioofficial registry

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Active10d ago

Install Calendar MCP server

claude mcp add calendar-deciduus -e GOOGLE_CLIENT_ID='<google-client-id>' -e GOOGLE_CLIENT_SECRET='<google-client-secret>' -- uvx calendar-mcp-server

{
  "mcpServers": {
    "calendar-deciduus": {
      "command": "uvx",
      "args": [
        "calendar-mcp-server"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<google-client-id>",
        "GOOGLE_CLIENT_SECRET": "<google-client-secret>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "calendar-deciduus": {
      "command": "uvx",
      "args": [
        "calendar-mcp-server"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<google-client-id>",
        "GOOGLE_CLIENT_SECRET": "<google-client-secret>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "calendar-deciduus": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "calendar-mcp-server"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<google-client-id>",
        "GOOGLE_CLIENT_SECRET": "<google-client-secret>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "calendar-deciduus": {
      "command": "uvx",
      "args": [
        "calendar-mcp-server"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<google-client-id>",
        "GOOGLE_CLIENT_SECRET": "<google-client-secret>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
GOOGLE_CLIENT_ID	yes	—	OAuth 2.0 client ID for a Google Cloud project with the Google Calendar API enabled.
GOOGLE_CLIENT_SECRET	yes	yes	OAuth 2.0 client secret matching GOOGLE_CLIENT_ID.
TOKEN_FILE_PATH	—	—	Path to the saved OAuth token file written by 'calendar-mcp auth'.

Freshness

Active — last maintenance signal 10d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-30 · 10d ago · GitHub
Latest release
2026-09-30 · 10d ago · GitHub · v1.1.1
Package published
no data · npm/PyPI
Registry entry updated
2026-09-05 · 35d ago · official registry · v1.0.1

FAQ

›How do I install the Calendar MCP server in Claude Code?

Run: claude mcp add calendar-deciduus -e GOOGLE_CLIENT_ID='<google-client-id>' -e GOOGLE_CLIENT_SECRET='<google-client-secret>' -- uvx calendar-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Calendar require an API key?

Yes. It expects GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, of which 1 is a secret.

›Can I use Calendar as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Calendar in the official MCP registry?

Yes, as io.github.deciduus/calendar-mcp.