Home Assistant MCP Server

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A Model Context Protocol (MCP) server for interacting with Home Assistant. This server provides tools to control and monitor your Home Assistant devices through MCP-enabled applications.

This project is part of the AI Model Context Protocol (MCP) ecosystem. For more information and documentation about MCP tools, visit www.aimcp.info.

Features

• Get device states
• Control device states (on/off)
• Trigger automations
• List available entities

Installation

Installing via Smithery

To install Home Assistant MCP Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @hekmon8/Homeassistant-server-mcp --client claude

Manual Installation

1. Clone this repository:

git clone https://github.com/yourusername/homeassistant-server-mcp.git
cd homeassistant-server-mcp

2. Install dependencies:

npm install

3. Build the project:

npm run build

4. Configure the MCP server by adding the following to your MCP settings file (typically located at ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json for VSCode):

{
  "mcpServers": {
    "homeassistant": {
      "command": "node",
      "args": ["/path/to/homeassistant-mcp/homeassistant-server/build/index.js"],
      "env": {
        "HA_URL": "http://your-homeassistant-url:8123",
        "HA_TOKEN": "your-long-lived-access-token"
      }
    }
  }
}

Replace your-homeassistant-url and your-long-lived-access-token with your Home Assistant instance URL and access token.

Usage

The server provides the following tools:

1. Get Device State

// Example usage
use_mcp_tool({
  server_name: "homeassistant",
  tool_name: "get_state",
  arguments: {
    entity_id: "light.living_room"
  }
});

2. Toggle Device State

// Example usage
use_mcp_tool({
  server_name: "homeassistant",
  tool_name: "toggle_entity",
  arguments: {
    entity_id: "switch.bedroom",
    state: "on"  // or "off"
  }
});

3. Trigger Automation

// Example usage
use_mcp_tool({
  server_name: "homeassistant",
  tool_name: "trigger_automation",
  arguments: {
    automation_id: "automation.morning_routine"
  }
});

4. List Entities

// Example usage
use_mcp_tool({
  server_name: "homeassistant",
  tool_name: "list_entities",
  arguments: {
    domain: "light"  // optional, filters by domain
  }
});

Contributing

Contributions are welcome! Here's how you can help:

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

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... View full README on GitHub