Google Calendar MCP

An MCP server that enables AI agents to interact with the Google Calendar API. It supports managing calendars, creating and modifying events, handling attendees, generating Google Meet links, managing recurring events, checking free/busy status, and handling Out of Office and Focus Time settings. It uses minimal Google scopes (calendar.events and calendar.readonly) and requires OAuth credentials.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by A1-x-Tech

You need:You need Node.js 20+, a Google account and OAuth credentials from a Google Cloud project with the Google Calendar API enabled.

Vendor documentation

What you can do with it

What's on my calendar this week?
Show Thursday's events and free slots shared with a colleague
Book a meeting with a Google Meet link
Check availability for a specific time slot

Source and maintenance

Community listingRegistry 1.1.1

mcp-registry: io.github.A1-x-Tech/mcp-google-calendar@1.1.1 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

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

@a1-x-tech/mcp-google-calendar 1.1.1

npm

@a1-x-tech/mcp-google-calendar package definition

{
  "version": "1.1.1",
  "transport": "stdio",
  "identifier": "@a1-x-tech/mcp-google-calendar",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "GOOGLE_CALENDAR_CLIENT_ID",
      "description": "Google OAuth2 client id (refresh-token flow)."
    },
    {
      "name": "GOOGLE_CALENDAR_CLIENT_SECRET",
      "description": "Google OAuth2 client secret (refresh-token flow). Treat it as a secret."
    },
    {
      "name": "GOOGLE_CALENDAR_REFRESH_TOKEN",
      "description": "Google OAuth2 refresh token, exchanged for access tokens automatically. Treat it as a secret."
    },
    {
      "name": "GOOGLE_CALENDAR_ACCESS_TOKEN",
      "description": "Static OAuth2 access token (~1h lifetime) — alternative to the refresh-token trio, mostly for testing."
    },
    {
      "name": "GOOGLE_CALENDAR_OAUTH_PORT",
      "description": "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."
    },
    {
      "name": "GOOGLE_CALENDAR_API_BASE",
      "default": "https://www.googleapis.com",
      "description": "API root override."
    },
    {
      "name": "GOOGLE_CALENDAR_TIMEOUT_MS",
      "default": "60000",
      "description": "Per-request timeout in milliseconds."
    },
    {
      "name": "GOOGLE_CALENDAR_MAX_RETRIES",
      "default": "3",
      "description": "Retries on transient errors (429 always; 5xx/network for reads)."
    }
  ]
}

Tools

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

No tool definitions available.

Connect from your client

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

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "google-calendar-mcp-a1-x-tech-mcp-google-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar@1.1.1"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_ID": "<YOUR_GOOGLE_CALENDAR_CLIENT_ID>",
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<YOUR_GOOGLE_CALENDAR_CLIENT_SECRET>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<YOUR_GOOGLE_CALENDAR_REFRESH_TOKEN>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<YOUR_GOOGLE_CALENDAR_ACCESS_TOKEN>",
        "GOOGLE_CALENDAR_OAUTH_PORT": "<YOUR_GOOGLE_CALENDAR_OAUTH_PORT>",
        "GOOGLE_CALENDAR_API_BASE": "<YOUR_GOOGLE_CALENDAR_API_BASE>",
        "GOOGLE_CALENDAR_TIMEOUT_MS": "<YOUR_GOOGLE_CALENDAR_TIMEOUT_MS>",
        "GOOGLE_CALENDAR_MAX_RETRIES": "<YOUR_GOOGLE_CALENDAR_MAX_RETRIES>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "google-calendar-mcp-a1-x-tech-mcp-google-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar@1.1.1"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_ID": "<YOUR_GOOGLE_CALENDAR_CLIENT_ID>",
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<YOUR_GOOGLE_CALENDAR_CLIENT_SECRET>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<YOUR_GOOGLE_CALENDAR_REFRESH_TOKEN>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<YOUR_GOOGLE_CALENDAR_ACCESS_TOKEN>",
        "GOOGLE_CALENDAR_OAUTH_PORT": "<YOUR_GOOGLE_CALENDAR_OAUTH_PORT>",
        "GOOGLE_CALENDAR_API_BASE": "<YOUR_GOOGLE_CALENDAR_API_BASE>",
        "GOOGLE_CALENDAR_TIMEOUT_MS": "<YOUR_GOOGLE_CALENDAR_TIMEOUT_MS>",
        "GOOGLE_CALENDAR_MAX_RETRIES": "<YOUR_GOOGLE_CALENDAR_MAX_RETRIES>"
      }
    }
  }
}

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": {
    "google-calendar-mcp-a1-x-tech-mcp-google-calendar": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar@1.1.1"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_ID": "<YOUR_GOOGLE_CALENDAR_CLIENT_ID>",
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<YOUR_GOOGLE_CALENDAR_CLIENT_SECRET>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<YOUR_GOOGLE_CALENDAR_REFRESH_TOKEN>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<YOUR_GOOGLE_CALENDAR_ACCESS_TOKEN>",
        "GOOGLE_CALENDAR_OAUTH_PORT": "<YOUR_GOOGLE_CALENDAR_OAUTH_PORT>",
        "GOOGLE_CALENDAR_API_BASE": "<YOUR_GOOGLE_CALENDAR_API_BASE>",
        "GOOGLE_CALENDAR_TIMEOUT_MS": "<YOUR_GOOGLE_CALENDAR_TIMEOUT_MS>",
        "GOOGLE_CALENDAR_MAX_RETRIES": "<YOUR_GOOGLE_CALENDAR_MAX_RETRIES>"
      }
    }
  }
}

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": {
    "google-calendar-mcp-a1-x-tech-mcp-google-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@a1-x-tech/mcp-google-calendar@1.1.1"
      ],
      "env": {
        "GOOGLE_CALENDAR_CLIENT_ID": "<YOUR_GOOGLE_CALENDAR_CLIENT_ID>",
        "GOOGLE_CALENDAR_CLIENT_SECRET": "<YOUR_GOOGLE_CALENDAR_CLIENT_SECRET>",
        "GOOGLE_CALENDAR_REFRESH_TOKEN": "<YOUR_GOOGLE_CALENDAR_REFRESH_TOKEN>",
        "GOOGLE_CALENDAR_ACCESS_TOKEN": "<YOUR_GOOGLE_CALENDAR_ACCESS_TOKEN>",
        "GOOGLE_CALENDAR_OAUTH_PORT": "<YOUR_GOOGLE_CALENDAR_OAUTH_PORT>",
        "GOOGLE_CALENDAR_API_BASE": "<YOUR_GOOGLE_CALENDAR_API_BASE>",
        "GOOGLE_CALENDAR_TIMEOUT_MS": "<YOUR_GOOGLE_CALENDAR_TIMEOUT_MS>",
        "GOOGLE_CALENDAR_MAX_RETRIES": "<YOUR_GOOGLE_CALENDAR_MAX_RETRIES>"
      }
    }
  }
}

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