Personal Assistant MCP Server

Nexus MCP

Features

• Google Calendar Integration
  • Create, read, update, and delete calendar events
  • List upcoming events
• Obsidian Vault Management
  • Create, read, update, and delete notes
  • Full-text search in notes
  • Folder management (create, delete, search, list)
• Trello Integration
  • Board, list, and card management
  • Create, update, and delete cards
  • Search cards by text query
• Web Page Parsing
  • Extract and clean HTML content from any URL
• Google News Search
  • Search for recent news articles on a given topic

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Prerequisites

• Python 3.10 or higher
• Poetry (Python package manager)
• Google Calendar API credentials
• Trello API credentials (if using Trello features)
• Obsidian Vault (if using Obsidian features)

Installation

1. Clone the repository:
   git clone https://github.com/yourusername/nexus-mcp.git cd nexus-mcp
2. Install dependencies using Poetry:
   poetry install
3. Set up Google Calendar API:
   • Go to the Google Cloud Console
   • Create a new project or select an existing one
   • Enable the Google Calendar API
   • Create OAuth 2.0 credentials
   • Download the credentials and save them as credentials.json in the project root
4. Set up Trello API (optional):
   • Go to Trello Developer Portal
   • Get your API key and token
   • Add them to your environment variables or config file

Configuration

1. Run the initial setup to authenticate with Google Calendar:
   poetry run python main.py
   • This will open a browser window for Google authentication
   • Follow the prompts to authorize the application

Usage

1. Start the server:
   poetry run python main.py
2. The server will start and be ready to accept MCP-compatible client connections.
3. Use any MCP-compatible client to interact with the server. The server provides the following tools:
   • Calendar management
   • Obsidian vault operations
   • Trello board management
   • Web page parsing

Anthropic Claude Desktop Configuration

To use this server with Anthropic Claude Desktop, add the following configuration to your Claude Desktop settings:

Replace the paths and credentials with your actual values:

• command: Path to your Python virtual environment's Python executable
• args: Path to your project's main.py file
• ENABLE_OBSIDIAN_TOOLS: Set to True to enable Obsidian tools
• ENABLE_TRELLO_TOOLS: Set to True to enable Trello tools
• ENABLE_CALENDAR_TOOLS: Set to True to enable Google Calendar tools
• ENABLE_NEWS_SEARCH: Set to True to enable Google News search
• ENABLE_WEB_PARSER: Set to True to enable the web parser tool
• GOOGLE_CREDENTIALS_PATH: Path to your Google Calendar credentials file (credentials.json)
• GOOGLE_TOKEN_PATH: Path to your Google Calendar token file (token.json)
• GOOGLE_API_KEY: Your Google API Key (for Custom Search API)
• GOOGLE_CX_ID: Your Google Programmable Search Engine ID (CX ID for Custom Search API)
• OBSIDIAN_VAULT_PATH: Path to your Obsidian vault
• OBSIDIAN_DEFAULT_FOLDER: Optional path to default folder in your vault where new notes will be created
• TRELLO_API_KEY: Your Trello API key
• TRELLO_TOKEN: Your Trello API token
• LOG_PATH: Path to the log file
• SEMANTIC_SEARCH_ENABLED: Set to True to enable semantic search for Obsidian Vault
• SIMILARITY_TRESHOLD: Default value is 0.5, this is the treshold for the semantic search
• EMBEDDINGS_PATH: Optional path to the embeddings json file generated by the Obsidian Vector Search plugin (defaults to .obsidian/plugins/vector-search/data.json relative to OBSIDIAN_VAULT_PATH if not set)
• MODEL_TOKEN_LIMIT: Limit for the AI model to understand when to chunk the notes
• CHUNK_SIZE_TOKENS: Chunk size

To enable semantic search capabilities, you'll need to install the Vector Search plugin for Obsidian.

After the reindexing process is complete, the plugin will generate a JSON file containing vector embeddings at the following location:

.obsidian/plugins/vector-search/data.json

This file will be used as the embedding source for semantic search queries.

Recommended clients:

• Anthropic Claude Desktop
• 5ire

Development

• The project uses Poetry for dependency management
• All tools are registered in main.py
• Service-specific implementations are in the services/ directory
• Follow PEP 8 style guidelines for Python code

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