Claude MCP Trello

A Model Context Protocol (MCP) server that provides tools for interacting with Trello boards. This server enables seamless integration with Trello's API while handling rate limiting, type safety, and error handling automatically.

Features

Full Trello Board Integration: Interact with cards, lists, and board activities
Built-in Rate Limiting: Respects Trello's API limits (300 requests/10s per API key, 100 requests/10s per token)
Type-Safe Implementation: Written in TypeScript with comprehensive type definitions
Input Validation: Robust validation for all API inputs
Error Handling: Graceful error handling with informative messages

Available Tools

`trello_get_cards_by_list`

Retrieves a list of cards contained in the specified list ID.

{
  name: "trello_get_cards_by_list",
  arguments: {
    listId: string; // Trello list ID
  }
}

`trello_get_lists`

Retrieves all lists in the board.

{
  name: "trello_get_lists",
  arguments: {}
}

`trello_get_recent_activity`

Retrieves the most recent board activity. The limit argument can specify how many to retrieve (default: 10).

{
  name: "trello_get_recent_activity",
  arguments: {
    limit?: number; // Optional: number of activities to retrieve
  }
}

`trello_add_card`

Adds a card to the specified list.

{
  name: "trello_add_card",
  arguments: {
    listId: string;       // The ID of the list to add to
    name: string;         // The title of the card
    description?: string; // Optional: details of the card
    dueDate?: string;     // Optional: due date (e.g., ISO8601)
    labels?: string[];    // Optional: array of label IDs
  }
}

`trello_update_card`

Updates the content of a card.

{
  name: "trello_update_card",
  arguments: {
    cardId: string;       // The ID of the card to be updated
    name?: string;        // Optional: updated title
    description?: string; // Optional: updated description
    dueDate?: string;     // Optional: updated due date (e.g., ISO8601)
    labels?: string[];    // Optional: updated array of label IDs
  }
}

`trello_archive_card`

Archives (closes) the specified card.

{
  name: "trello_archive_card",
  arguments: {
    cardId: string; // The ID of the card to archive
  }
}

`trello_add_list`

Adds a new list to the board.

{
  name: "trello_add_list",
  arguments: {
    name: string; // Name of the new list
  }
}

`trello_archive_list`

Archives (closes) the specified list.

{
  name: "trello_archive_list",
  arguments: {
    listId: string; // The ID of the list to archive
  }
}

`trello_get_my_cards`

Retrieves all cards related to your account.

{
  name: "trello_get_my_cards",
  arguments: {}
}

`trello_search_all_boards`

Performs a cross-board search across all boards in the workspace (organization), depending on plan/permissions.

{
  name: "trello_search_all_boards",
  arguments: {
    query: string;   // Search keyword
    limit?: number;  // Optional: max number of results (default: 10)
  }
}

Rate Limiting

The server implements a token bucket algorithm for rate limiting to comply with Trello's API limits:

300 requests per 10 seconds per API key
100 requests per 10 seconds per token

Rate limiting is handled automatically, and requests will be queued if limits are reached.

Error Handling

The server provides detailed error messages for various scenarios:

Invalid input parameters
Rate limit exceeded
API authentication errors
Network issues
Invalid board/list/card IDs

Development

Prerequisites

Node.js 16 or higher
npm or yarn

Setup

Clone the repository:
git clone https://github.com/hrs-asano/claude-mcp-trello.git cd claude-mcp-trello
Install dependencies:
npm install
Build the project:
npm run build

Running Tests

npm test

Integration with Claude Desktop

To integrate this MCP server with Claude Desktop, add the following configuration to your ~/Library/Application\ Support/Claude/claude_desktop_config.json file:

{
  "mcpServers": {
    "trello": {
      "command": "{YOUR_NODE_PATH}", // for example: /opt/homebrew/bin/node
      "args": [
        "{YOUR_PATH}/claude-mcp-trello/build/index.js"
      ],
      "env": {
        "TRELLO_API_KEY": "{YOUR_KEY}",
        "TRELLO_TOKEN": "{YOUR_TOKEN}",
        "TRELLO_BOARD_ID": "{YOUR_BOARD_ID}"
      }
    }
  }
}

Make sure to replace {YOUR_NODE_PATH}, {YOUR_PATH}, {YOUR_KEY}, {YOUR_TOKEN}, and {YOUR_BOARD_ID} with the appropriate values for your environment.

Contributing

Contributions are welcome! Please read our Contributing Guide for details on our code of conduct and the process for submitting pull requests.

License

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

Acknowledgments

Built with the Model Context Protocol SDK
Uses the Trello REST API