notion-mcp

notion-mcp

104
knowledge_and_memory

The Notion MCP Server provides a standardized interface to interact with Notion's API using the Model Context Protocol. It supports various functionalities such as querying databases and updating pages, designed for easy integration with tools like Claude Desktop.

Notion MCP Server

A Model Context Protocol (MCP) server implementation for Notion integration, providing a standardized interface for interacting with Notion's API. Compatible with Claude Desktop and other MCP clients.

Features

  • List and query Notion databases
  • Create and update pages
  • Search across Notion workspace
  • Get database details and block children
  • Full async/await support with httpx
  • Type-safe with Pydantic v2 models
  • Proper error handling with detailed logging
  • Compatibility with MCP 1.6.0

Installation

  1. Clone the repository:
git clone https://github.com/ccabanillas/notion-mcp.git
cd notion-mcp
  1. Create a virtual environment and install dependencies (using uv):
uv venv
source .venv/bin/activate  # On Windows: .venv\Scripts\activate
uv pip install -e .

Alternatively, using standard venv:

python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate
pip install -e .
  1. Create a .env file in the project root:
NOTION_API_KEY=your_notion_integration_token

Usage

  1. Test the server (it should run without errors):
python -m notion_mcp
  1. To use it with Claude Desktop, adjust your claude_desktop_config.json file (located at ~/Library/Application Support/Claude/claude_desktop_config.json on macOS):
{
  "servers": {
    "notion-mcp": {
      "command": "/Users/username/Projects/notion-mcp/.venv/bin/python",
      "args": ["-m", "notion_mcp"],
      "cwd": "/Users/username/Projects/notion-mcp"
    }
  }
}

Be sure to replace /Users/username/ with your actual home directory path.

Development

Project Structure

notion-mcp/
├── src/
│   └── notion_mcp/
│       ├── models/
│       │   ├── __init__.py
│       │   └── notion.py      # Pydantic models for Notion objects
│       ├── __init__.py        
│       ├── __main__.py        # Entry point
│       ├── client.py          # Notion API client
│       └── server.py          # MCP server implementation
├── .env                       # Environment variables (add your Notion API key here)
├── .gitignore
├── pyproject.toml             # Project dependencies
└── README.md

Running Tests

pytest

Configuration

The server requires a Notion integration token. To set this up:

  1. Go to https://www.notion.so/my-integrations
  2. Create a new integration with appropriate capabilities (read/write as needed)
  3. Copy the integration token
  4. Add it to your .env file in the project root directory:
NOTION_API_KEY=your_notion_integration_token
  1. Share your Notion databases with the integration (from the database's "Share" menu)

Contributing

  1. Fork the repository
  2. Create your feature branch (git checkout -b feature/amazing-feature)
  3. Commit your changes (git commit -m 'Add some amazing feature')
  4. Push to the branch (git push origin feature/amazing-feature)
  5. Open a Pull Request

License

MIT License - Use at your own risk

Troubleshooting

Common Issues

  • Connection Errors: Make sure your Notion API key is correct and you have internet access
  • Permission Errors: Ensure your integration has been given access to the databases you're trying to access
  • Claude Desktop Integration: If Claude Desktop isn't connecting, check that your config path is correct and that the server is running without logging to stdout

Acknowledgments

  • Built to work with Claude Desktop and other MCP clients
  • Uses Notion's API (latest compatible version 2022-02-22)
  • MCP 1.6.0 compatibility maintained
  • Special thanks to danhilse, I referenced his notion-mcp-server project