Google Calendar MCP Server

by a1-x-techio.github.A1-x-Tech/mcp-google-calendarv1.0.0

MCP server for the Google Calendar API: events, recurrence, invitations, availability, calendars.

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Active6d ago

Install Google Calendar MCP server

claude mcp add google-calendar-a1-x-tech -e GOOGLE_CALENDAR_CLIENT_SECRET='<google-calendar-client-secret>' -e GOOGLE_CALENDAR_REFRESH_TOKEN='<google-calendar-refresh-token>' -e GOOGLE_CALENDAR_ACCESS_TOKEN='<google-calendar-access-token>' -- npx -y @a1-x-tech/mcp-google-calendar

{
  "mcpServers": {
    "google-calendar-a1-x-tech": {
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<google-calendar-client-secret>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<google-calendar-refresh-token>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<google-calendar-access-token>"
      }
    }
  }
}

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

{
  "mcpServers": {
    "google-calendar-a1-x-tech": {
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<google-calendar-client-secret>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<google-calendar-refresh-token>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<google-calendar-access-token>"
      }
    }
  }
}

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

{
  "servers": {
    "google-calendar-a1-x-tech": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<google-calendar-client-secret>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<google-calendar-refresh-token>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<google-calendar-access-token>"
      }
    }
  }
}

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

{
  "mcpServers": {
    "google-calendar-a1-x-tech": {
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<google-calendar-client-secret>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<google-calendar-refresh-token>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<google-calendar-access-token>"
      }
    }
  }
}

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

Configuration

Variable	Required	Secret	Description
GOOGLE_CALENDAR_CLIENT_ID	—	—	Google OAuth2 client id (refresh-token flow).
GOOGLE_CALENDAR_CLIENT_SECRET	—	yes	Google OAuth2 client secret (refresh-token flow). Treat it as a secret.
GOOGLE_CALENDAR_REFRESH_TOKEN	—	yes	Google OAuth2 refresh token, exchanged for access tokens automatically. Treat it as a secret.
GOOGLE_CALENDAR_ACCESS_TOKEN	—	yes	Static OAuth2 access token (~1h lifetime) — alternative to the refresh-token trio, mostly for testing.
GOOGLE_CALENDAR_OAUTH_PORT	—	—	Fixed port for the loopback listener of the in-chat login (127.0.0.1 + PKCE). Set it when the client runs over SSH port forwarding; otherwise a free port is picked per login.
GOOGLE_CALENDAR_API_BASE	—	—	API root override.
GOOGLE_CALENDAR_TIMEOUT_MS	—	—	Per-request timeout in milliseconds.
GOOGLE_CALENDAR_MAX_RETRIES	—	—	Retries on transient errors (429 always; 5xx/network for reads).

Freshness

Active — last maintenance signal 6d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-04 · 6d ago · GitHub
Latest release
2026-09-23 · 16d ago · GitHub · v1.0.0
Package published
no data · npm/PyPI
Registry entry updated
2026-09-23 · 16d ago · official registry · v1.0.0

FAQ

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

Run: claude mcp add google-calendar-a1-x-tech -e GOOGLE_CALENDAR_CLIENT_SECRET='<google-calendar-client-secret>' -e GOOGLE_CALENDAR_REFRESH_TOKEN='<google-calendar-refresh-token>' -e GOOGLE_CALENDAR_ACCESS_TOKEN='<google-calendar-access-token>' -- npx -y @a1-x-tech/mcp-google-calendar. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Google Calendar require an API key?

Yes. It expects GOOGLE_CALENDAR_CLIENT_SECRET, GOOGLE_CALENDAR_REFRESH_TOKEN, GOOGLE_CALENDAR_ACCESS_TOKEN, of which 3 are secrets.

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

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

›Is Google Calendar in the official MCP registry?

Yes, as io.github.A1-x-Tech/mcp-google-calendar.