Google Docs MCP Server

A Model Context Protocol (MCP) server for Google Docs API, allowing language models to create, search, append to, and update Google Docs.

Features

• Search Docs: Search for Google Docs in Drive with custom queries
• Create Doc: Create new Google Docs with optional initial content
• Append to Doc: Append content to the end of an existing Google Doc
• Update Doc: Replace content in an existing Google Doc with new content

Setup

Prerequisites

• Node.js (v14 or higher)
• npm
• Google Cloud Platform account with the Google Drive and Google Docs APIs enabled

Installation

1. Clone this repository:

   git clone <repository-url>
   cd google-docs-mcp-server
   

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2. Install dependencies:

   npm install
   

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3. Set up Google API credentials:

   • Go to the Google Cloud Console
   • Create a new project (or select an existing one)
   • Enable the Google Drive API and Google Docs API
   • Create OAuth 2.0 credentials (Desktop application)
   • Download the credentials JSON file and save it as credentials.json in the project root

4. Get authentication tokens:

   node get-refresh-token.js
   

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   Follow the browser prompts to authorize the application. This will create a token.json file.

5. Build the server:

   npm run build
   

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Building the Extism Plugin

The server uses an Extism WebAssembly plugin to interact with the Google Docs API. To build the plugin:

cd extism-plugin
npm install
npm run build

This will create the plugin.wasm file in the dist directory.

Usage

Running the Server

Start the MCP server:

npm start

Or with explicit node command:

node build/index.js

Testing the Plugin Directly

You can test the Extism plugin directly using the Extism CLI:

cd extism-plugin
extism call --wasi --allow-host www.googleapis.com --allow-host docs.googleapis.com --config GOOGLE_ACCESS_TOKEN=<your-access-token> dist/plugin.wasm describe

To search for docs:

extism call --wasi --allow-host www.googleapis.com --allow-host docs.googleapis.com --config GOOGLE_ACCESS_TOKEN=<your-access-token> dist/plugin.wasm call --input '{"toolId": "search_docs", "arguments": {"query": "name contains \"report\""}}'

To create a new doc:

extism call --wasi --allow-host www.googleapis.com --allow-host docs.googleapis.com --config GOOGLE_ACCESS_TOKEN=<your-access-token> dist/plugin.wasm call --input '{"toolId": "create_doc", "arguments": {"title": "My New Document", "content": "Initial content"}}'

License

MIT