Things MCP

A Model Context Protocol (MCP) server for Things 3 integration. Enables Claude Desktop and Claude Code to interact with Things 3 on macOS.

Features

• Create to-dos and projects with full metadata
• Update existing to-dos and projects
• List items from any Things list (Inbox, Today, Logbook, Trash, etc.)
• Retrieve all projects, areas, and tags
• Navigate to specific items or lists
• Search within Things
• Secure AppleScript execution
• Comprehensive error handling

Requirements

• macOS with Things 3 installed
• Node.js 18 or later
• Things URL scheme enabled (automatic on first use)

Installation

Quick Start with npx (Recommended)

npx github:hildersantos/things-mcp

This will automatically download, build, and start the MCP server.

Manual Installation

1. Clone this repository:

git clone https://github.com/hildersantos/things-mcp.git
   cd things-mcp

2. Install dependencies:

npm install

3. Build the project:

npm run build

4. Start the server:

npm start

Configuration

Claude Desktop Setup

1. Get your Things auth token (required for update operations):

2. Configure Claude Desktop:

Open your Claude Desktop configuration file:

~/Library/Application Support/Claude/claude_desktop_config.json

Add the Things MCP server to the `mcpServers` section:

{
     "mcpServers": {
       "things-mcp": {
         "command": "npx",
         "args": ["github:hildersantos/things-mcp"],
         "env": {
           "THINGS_AUTH_TOKEN": "your-token-here"
         }
       }
     }
   }

Replace `your-token-here` with your actual Things auth token from step 1.

3. Restart Claude Desktop to apply the configuration changes.

Alternative: Local Installation

If you prefer to install locally instead of using npx:

{
  "mcpServers": {
    "things-mcp": {
      "command": "node",
      "args": ["/absolute/path/to/things-mcp/dist/index.js"],
      "env": {
        "THINGS_AUTH_TOKEN": "your-token-here"
      }
    }
  }
}

Usage Examples

Create a To-Do

Create a task "Buy milk" for today with tag "errands" in Things

Create a Simple Project

Create a "Website Redesign" project in Things in my Work area

Create a Complex Project

Plan a vacation to Japan in Things with research about destinations, booking flights and hotels, 
creating a packing list, and planning daily activities

Another Project Example

Set up a new employee onboarding project in Things with IT setup tasks, HR paperwork, 
training schedule, and first week activities

Update a To-Do

Mark task ABC-123 as completed in Things

Add Items to Existing Project

Add new tasks to my "Website Redesign" project in Things: create wireframes, design mockups, and user testing

List Tasks

Show me all tasks in my Things inbox

View Projects

List all my projects in Things

Navigate

Open my Today list in Things

Get Task Details

Get full details for task TBeaUrcGH1zKoMmS7wwHVD from Things

Search

Search for "meeting" in Things

View Completed Tasks

Show me my completed tasks from the Things logbook

Available Tools

Creation Tools

• `things_add_todo` - Create a to-do with all options
• `things_add_project` - Create a project with sections (headings), todos, and hierarchical organization

Update Tools (requires auth token)

• `things_update_todo` - Update an existing to-do using JSON API for full feature support
• `things_update_project` - Update an existing project using JSON API for full feature support
• `things_add_items_to_project` - Add structured todos and headings to an existing project

Reading Tools

• `things_get_inbox` - List inbox items
• `things_get_today` - List today's items
• `things_get_upcoming` - List scheduled items
• `things_get_anytime` - List anytime items
• `things_get_someday` - List someday items
• `things_get_logbook` - List completed items
• `things_get_trash` - List trashed items
• `things_get_projects` - List all active projects
• `things_get_areas` - List all areas
• `things_get_tags` - List all tags
• `things_get_project` - List items in a specific project (requires project_id)
• `things_get_area` - List items in a specific area (requires area_id)
• `things_get_list` - Get items from a specific list by name
• `things_get_todo_details` - Get detailed information about a specific to-do

All list tools support an optional `max_results` parameter to limit output.

Navigation Tools

• `things_show` - Navigate to item or list

Development

# Development mode with watch
npm run dev

# Run linter
npm run lint

# Format code
npm run format

# Run tests
npm test

# Run tests in watch mode
npm run test:watch

Troubleshooting

"Things 3 does not appear to be running"

Make sure Things 3 is installed and has been opened at least once.

"Authentication failed"

Check that your THINGS_AUTH_TOKEN is correctly set in the MCP configuration.

AppleScript Permissions

On first run, macOS may ask for permission to control Things. Grant this permission for the MCP to work.

Performance Issues

Use the `max_results` parameter when listing large collections:

Use things_get_projects with max_results 10

License

MIT

Credits

Built with the Model Context Protocol SDK.

Things is a trademark of Cultured Code GmbH & Co. KG.