Overview
Hass-MCP is a Model Context Protocol (MCP) server designed for integrating AI assistants like Claude with Home Assistant, enabling seamless interaction with smart home devices.
To use Hass-MCP, set up a Home Assistant instance with a Long-Lived Access Token, install the server via Docker or Python, and configure it within your AI assistant's settings.
- Entity Management: Control devices and query states. - Domain Summaries: Get high-level information about entity types. - Automation Support: Manage and control automations. - Guided Conversations: Use prompts for common tasks. - Smart Search: Efficiently find entities by various criteria. - Token Efficiency: Minimized JSON responses to save on token usage.
- Querying the state of smart home devices.
- Automating tasks like turning on lights at specific times.
- Troubleshooting issues with automations and entities.
- Creating guided conversations for user-friendly interactions with smart home systems.
Add to your AI client
Use these steps to connect Hass-MCP in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.
Cursor
Add this to your .cursor/mcp.json file in your project root, then restart Cursor.
.cursor/mcp.json
{
"mcpServers": {
"hass-mcp-voska": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"HA_URL",
"-e",
"HA_TOKEN",
"voska/hass-mcp"
],
"env": {
"HA_TOKEN": "YOUR_LONG_LIVED_TOKEN",
"HA_URL": "http://homeassistant.local:8123"
}
}
}
}Claude Desktop
Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.
~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)
{
"mcpServers": {
"hass-mcp-voska": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"HA_URL",
"-e",
"HA_TOKEN",
"voska/hass-mcp"
],
"env": {
"HA_TOKEN": "YOUR_LONG_LIVED_TOKEN",
"HA_URL": "http://homeassistant.local:8123"
}
}
}
}Claude Code
Add this to your project's .mcp.json file. Claude Code will detect it automatically.
.mcp.json (project root)
{
"mcpServers": {
"hass-mcp-voska": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"HA_URL",
"-e",
"HA_TOKEN",
"voska/hass-mcp"
],
"env": {
"HA_TOKEN": "YOUR_LONG_LIVED_TOKEN",
"HA_URL": "http://homeassistant.local:8123"
}
}
}
}VS Code (Copilot)
Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.
.vscode/mcp.json
{
"servers": {
"hass-mcp-voska": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"HA_URL",
"-e",
"HA_TOKEN",
"voska/hass-mcp"
],
"env": {
"HA_TOKEN": "YOUR_LONG_LIVED_TOKEN",
"HA_URL": "http://homeassistant.local:8123"
}
}
}
}Windsurf
Add this to your Windsurf MCP config file, then restart Windsurf.
~/.codeium/windsurf/mcp_config.json
{
"mcpServers": {
"hass-mcp-voska": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"HA_URL",
"-e",
"HA_TOKEN",
"voska/hass-mcp"
],
"env": {
"HA_TOKEN": "YOUR_LONG_LIVED_TOKEN",
"HA_URL": "http://homeassistant.local:8123"
}
}
}
}Cline
Open Cline settings, navigate to MCP Servers, and add this server configuration.
Cline MCP Settings (via UI)
{
"mcpServers": {
"hass-mcp-voska": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"HA_URL",
"-e",
"HA_TOKEN",
"voska/hass-mcp"
],
"env": {
"HA_TOKEN": "YOUR_LONG_LIVED_TOKEN",
"HA_URL": "http://homeassistant.local:8123"
}
}
}
}FAQ
Can Hass-MCP work with any AI assistant?
Yes! It is designed to integrate with various AI assistants that support MCP.
Is Hass-MCP free to use?
Yes! Hass-MCP is open-source and free to use.
What are the prerequisites for using Hass-MCP?
You need a Home Assistant instance and either Docker or Python 3.13+.