mcp-todoist

shayonpal/mcp-todoist

3.4

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The Todoist MCP Server is a tool that allows for programmatic management of Todoist tasks and projects using the Todoist REST API v1.

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Todoist MCP Server

npm version

MCP server enabling programmatic Todoist task and project management through an optimized tool set using Todoist REST API v1. Integrates seamlessly with Claude Desktop and other MCP-compatible clients.

Table of Contents

Features

  • 8 Core Tools: Comprehensive task and project management
    • Tasks (CRUD + complete/uncomplete)
    • Bulk Tasks (batch operations on up to 50 tasks)
    • Projects (CRUD + archive/unarchive)
    • Sections (organize tasks within projects)
    • Comments (with file attachment support)
    • Filters (custom task queries)
    • Reminders (relative, absolute, location-based)
    • Labels (personal and shared label management)
  • Natural Language Dates: "tomorrow", "every Monday", "next Friday at 3pm"
  • Deadline Support: Set completion deadlines distinct from due dates
  • Batch Operations: Execute up to 100 operations per request via Sync API
  • Smart Rate Limiting: Token bucket algorithm with automatic retry
  • Type Safety: Full TypeScript implementation with Zod validation
  • Comprehensive Testing: Contract and integration test coverage

Prerequisites

Installation

This MCP server is deployed as a remote HTTP service. No local installation required - just configure your MCP client to connect to the HTTP endpoint.

For Deployment

If you want to deploy your own instance:

  1. Fork this repository
  2. Deploy to Vercel (button below)
  3. Configure TODOIST_API_TOKEN in Vercel environment variables

Deploy with Vercel

Configuration

MCP Clients

Configure your MCP client with the HTTP transport:

Claude Desktop / Claude Code

Add to your MCP settings file:

macOS: ~/.claude/settings.json Windows: %APPDATA%\.claude\settings.json Linux: ~/.config/claude/settings.json

{
  "mcpServers": {
    "todoist": {
      "transport": {
        "type": "http",
        "url": "https://todoist.uberfolks.ca/mcp"
      }
    }
  }
}

For local development:

{
  "mcpServers": {
    "todoist": {
      "transport": {
        "type": "http",
        "url": "http://localhost:3000/mcp"
      }
    }
  }
}

Available Tools

todoist_tasks

Complete task management with create, get, update, delete, list, complete, uncomplete, and list_completed actions. Supports natural language dates, deadlines, priorities, labels, recurring tasks, and querying completed tasks within time-bounded windows.

Key parameters: action, task_id, content, due_date, due_string, deadline, priority, labels, project_id, completed_query_type, since, until

Completed tasks querying:

  • list_completed action retrieves completed tasks
  • Query by completion date (3-month window) or due date (6-week window)
  • Supports filtering by project, section, workspace, labels, and more
  • Cursor-based pagination for large result sets
  • Example: Query all tasks completed in September with Work label
    {
      "action": "list_completed",
      "completed_query_type": "by_completion_date",
      "since": "2025-09-01T00:00:00Z",
      "until": "2025-09-30T23:59:59Z",
      "filter_query": "@Work",
      "limit": 50
    }
    

todoist_projects

Project management with create, get, update, delete, list, archive, and unarchive actions. Organize work with hierarchical projects and custom views.

Key parameters: action, project_id, name, color, is_favorite, view_style

todoist_sections

Section management within projects for better task organization. Create, get, update, delete, list, and reorder sections.

Key parameters: action, section_id, project_id, name, order

todoist_comments

Add and manage comments on tasks and projects with file attachment support (up to 15,000 characters).

Key parameters: action, comment_id, task_id, project_id, content, attachment

todoist_filters

Create and manage custom filters for advanced task queries. List, create, update, delete, and query filters.

Key parameters: action, filter_id, name, query, color, is_favorite

todoist_reminders

Set reminders for tasks with three types: relative (X minutes before due), absolute (specific datetime), and location-based (geofenced).

Key parameters: action, reminder_id, item_id, type, minute_offset, due, loc_lat, loc_long

todoist_labels

Manage personal and shared labels with create, get, update, delete, list, rename, and remove actions. Includes caching for optimal performance.

Key parameters: action, label_id, name, color, is_favorite, order

todoist_bulk_tasks

Perform bulk operations on up to 50 tasks simultaneously. Supports update, complete, uncomplete, and move operations with automatic deduplication and partial execution mode.

Key parameters: action, task_ids (1-50 items), project_id, section_id, labels, priority, due_string, deadline_date

Supported Actions:

  • update - Modify task fields (due date, priority, labels, etc.)
  • complete - Mark multiple tasks as done
  • uncomplete - Reopen completed tasks
  • move - Change project/section/parent for multiple tasks

Usage Examples:

// Bulk update due dates for 5 tasks
{
  "action": "update",
  "task_ids": ["7654321", "7654322", "7654323", "7654324", "7654325"],
  "due_string": "tomorrow"
}

// Bulk complete 10 tasks
{
  "action": "complete",
  "task_ids": ["7654321", "7654322", "7654323", "7654324", "7654325",
               "7654326", "7654327", "7654328", "7654329", "7654330"]
}

// Bulk move 7 tasks to different project
{
  "action": "move",
  "task_ids": ["7654321", "7654322", "7654323", "7654324", "7654325",
               "7654326", "7654327"],
  "project_id": "2203306141"
}

// Bulk update multiple fields for 8 tasks
{
  "action": "update",
  "task_ids": ["7654321", "7654322", "7654323", "7654324",
               "7654325", "7654326", "7654327", "7654328"],
  "priority": 2,
  "labels": ["urgent", "work"],
  "deadline_date": "2025-12-31"
}

Limitations:

  • Maximum 50 unique tasks per operation (after deduplication)
  • Cannot modify content (task title), description, or comments in bulk
  • All tasks receive the same field updates
  • Performance: <2 seconds for 50-task operations

Response Structure:

  • Individual results for each task (success/failure)
  • Summary counts (total, successful, failed)
  • Automatic deduplication metadata
  • Execution time tracking

Rate Limiting

The server implements intelligent rate limiting to respect Todoist API constraints:

  • REST API: 300 requests/minute (token bucket: 300 capacity, 5 tokens/sec refill)
  • Sync API: 50 requests/minute (token bucket: 50 capacity, ~0.83 tokens/sec refill)
  • Automatic Retry: Exponential backoff on 429 responses
  • Batch Operations: Use for bulk updates to minimize API calls

Development

Prerequisites

  • Node.js 18+
  • Vercel CLI: npm install -g vercel
  • Todoist API token

Local Setup

  1. Clone the repository:

    git clone https://github.com/shayonpal/mcp-todoist.git
    cd mcp-todoist
    
  2. Install dependencies:

    npm install
    
  3. Create .env.local:

    echo "TODOIST_API_TOKEN=your_token_here" > .env.local
    
  4. Start development server:

    vercel dev
    

    Server runs at http://localhost:3000/mcp

  5. Test endpoint:

    curl -X POST http://localhost:3000/mcp \
      -H "Content-Type: application/json" \
      -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
    

Building

npm run build

Testing

npm test

Contributing

Contributions are welcome! Please see for guidelines.

License

GNU General Public License v3.0 - see for details.

Copyright (C) 2025 Shayon Pal