Trello MCP Server

A Model Context Protocol (MCP) server for interacting with the Trello API. This server enables AI assistants to retrieve information from Trello cards through a standardized interface.

Features

• Card Retrieval: Get Trello cards by ID or direct link
• Read-only Mode: Optional read-only mode for safe operations
• Type Safety: Built with TypeScript and Zod for robust type validation
• Debug Support: Optional debug logging for troubleshooting

Installation

Prerequisites

• Node.js ≥ 22.7.0
• npm ≥ 10.8.2
• A Trello account with API access

Setup

1. Clone the repository:

git clone https://github.com/LorhanSohaky/trello-mcp.git
cd trello-mcp

1. Install dependencies:

npm install

1. Get your Trello API credentials:
   • Visit Trello Developer API Keys
   • Copy your API Key
   • Generate a Token by clicking the "Token" link

Configuration

The server requires the following configuration parameters:

Example Configuration

{
  "apiKey": "your_trello_api_key_here",
  "apiToken": "your_trello_api_token_here",
  "debug": false,
  "readOnly": true
}

Available Tools

getCardById

Retrieves a Trello card by its unique ID.

Parameters:

• idCard (string): The ID of the Trello card to retrieve

Example:

{
  "tool": "getCardById",
  "input": { "idCard": "5f1a2b3c4d5e6f7g8h9i0j1k" }
}

getCardByLink

Retrieves a Trello card using its public link.

Parameters:

• link (string): The URL of the Trello card to retrieve

Example:

{
  "tool": "getCardByLink",
  "input": { "link": "https://trello.com/c/abc123def/123-card-title" }
}

Development

This project uses Smithery for MCP server development and deployment.

Running in Development Mode

npm run dev

This will start the MCP server using Smithery's development tools with hot reloading.

Linting and Formatting

The project uses Biome for linting and formatting:

# Format and fix linting issues
npm run lint:fix

# Check for linting issues only
npm run lint

Project Structure

├── .editorconfig     # Editor configuration
├── .gitignore        # Git ignore rules
├── biome.json        # Biome linter/formatter config
├── lefthook.yaml     # Git hooks configuration
├── LICENSE.md        # MIT license
├── package.json      # Node.js dependencies and scripts
├── smithery.yaml     # Smithery MCP server configuration
├── README.md         # This file
└── src/
    ├── index.ts      # Main MCP server implementation
    └── trello/
        ├── index.ts  # Trello API client
        ├── cards.ts  # Cards API implementation
        └── schemas.ts # Zod schemas for type validation

Usage with AI Assistants

This MCP server is designed to work with AI assistants that support the Model Context Protocol. Once configured, the assistant can use the provided tools to:

• Retrieve complete card information for project management tasks
• Get detailed card data when provided with Trello links
• Access all card properties including labels, members, due dates, and attachments
• Integrate Trello data into workflows and automation

API Response Format

Both tools return the complete card object as JSON, containing all available card information including:

{
  "id": "card_id_here",
  "name": "Card Title",
  "desc": "Card Description",
  "url": "https://trello.com/c/...",
  "shortLink": "abc123",
  "idBoard": "board_id",
  "idList": "list_id",
  "labels": [...],
  "members": [...],
  "due": "2025-01-01T00:00:00.000Z",
  // ... and many other properties
}

Tools and Technologies

• Model Context Protocol (MCP): Standardized protocol for AI-tool integration
• Smithery: MCP server development and deployment platform
• TypeScript: Type-safe JavaScript development
• Zod: Runtime type validation and schema definition
• Biome: Fast linter and formatter
• Lefthook: Git hooks manager

Error Handling

The server includes robust error handling for:

• Invalid card IDs
• Malformed Trello links
• API authentication failures
• Network connectivity issues

Security

• The server supports read-only mode to prevent accidental modifications
• API credentials are required for all operations
• All inputs are validated using Zod schemas

Contributing

1. Fork the repository
2. Create a feature branch: git checkout -b feature-name
3. Make your changes and add tests
4. Run linting: npm run lint:fix
5. Commit your changes: git commit -am 'Add feature'
6. Push to the branch: git push origin feature-name
7. Submit a pull request

License

This project is licensed under the MIT License - see the LICENSE.md file for details.

Support

For issues and questions:

• Open an issue on GitHub Issues
• Check the repository homepage for updates

This MCP server is built using the @modelcontextprotocol/sdk and follows MCP best practices for tool integration.