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Home Assistant MCP Server

by miguelg719
GitHub
Python
MIT License
  • Apple
OverviewInspectNewSchemaRelated ServersReviewsScore
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Integrations

  • Provides tools for controlling various Home Assistant domains including lights (on/off, brightness), climate systems (temperature, HVAC modes), locks (lock/unlock), alarm control panels (arm/disarm), and humidifiers (humidity control).

🤝 Home Assistant MCP Server

A Model Context Protocol (MCP) server project that integrates with Home Assistant to provide smart home control capabilities.

Prompts

The server provides prompts for each domain's set of tools.

Tools

The server implements control for various Home Assistant domains. Currently supports:

  • 💡 Lights: Turn on/off, brightness control
  • 🌡️ Climate: Temperature control, HVAC modes
  • 🔒 Locks: Lock/unlock functionality
  • 🚨 Alarm Control Panel: Arm/disarm security systems
  • 💧 Humidifier: Humidity control

Example tools include:

light-turn_on() climate-turn_off() alarm_control_panel-disarm() lock-lock() humidifier-turn_off()

Configuration

Environment Variables

Create a .env file in the root directory with:

HOMEASSISTANT_TOKEN=your_long_lived_access_token_here # get it from your Home Assistant instance after onboarding HOMEASSISTANT_BASE_URL=your_home_assistant_url_here # e.g. http://homeassistant.local:8123

Quickstart

Install

Follow the instructions on how to install Home Assistant and get a long lived access token.

Claude Desktop

On MacOS: ~/Library/Application\ Support/Claude/claude_desktop_config.json On Windows: %APPDATA%/Claude/claude_desktop_config.json

Development

Building and Publishing

To prepare the package for distribution:

  1. Sync dependencies and update lockfile:
uv sync
  1. Build package distributions:
uv build

This will create source and wheel distributions in the dist/ directory.

  1. Publish to PyPI:
uv publish

Note: You'll need to set PyPI credentials via environment variables or command flags:

  • Token: --token or UV_PUBLISH_TOKEN
  • Or username/password: --username/UV_PUBLISH_USERNAME and --password/UV_PUBLISH_PASSWORD

Debugging

Since MCP servers run over stdio, debugging can be challenging. For the best debugging experience, we strongly recommend using the MCP Inspector.

You can launch the MCP Inspector via npm with this command:

npx @modelcontextprotocol/inspector uv --directory /Users/miguel/Documents/home-assistant-server/home-assistant-server run home-assistant-server

Upon launching, the Inspector will display a URL that you can access in your browser to begin debugging.

Contributing

Thanks for your interest in contributing to this project!

Please see CONTRIBUTING.md for guidelines.

License

MIT License - see LICENSE for details.

This server cannot be installed

-
security - not tested
A
license - permissive license
-
quality - not tested

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

A Model Context Protocol server that integrates with Home Assistant to provide smart home control capabilities through natural language, supporting devices like lights, climate systems, locks, alarms, and humidifiers.

  1. Prompts
    1. Tools
      1. Configuration
        1. Environment Variables
      2. Quickstart
        1. Install
      3. Development
        1. Building and Publishing
        2. Debugging
      4. Contributing
        1. License

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