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Home Assistant MCP Server

Integrates with Home Assistant to provide smart home control capabilities via Model Context Protocol (MCP).

Local serverstdio★ 3

What is the Home Assistant MCP Server?

Integrates with Home Assistant to provide smart home control capabilities via Model Context Protocol (MCP).

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Prompts — The Prompts tool exposed by this server
  • Tools — The server implements control for various Home Assistant domains. Currently supports: - 💡 Lights: Turn on/off, brightness control - 🌡️ Climate
  • Debugging — Since MCP servers run over stdio, debugging can be challenging. For the best debugging experience, we strongly recommend using the [MCP

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

How to install the Home Assistant MCP Server

{
  "mcpServers": {
    "home-assistant-server": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/home-assistant-server",
        "run",
        "home-assistant-server"
      ]
    }
  }
}

Maintainer configuration example. Replace example paths and credential placeholders before connecting.

Configuration

VariableDescriptionRequired
HOMEASSISTANT_TOKENCredential the server authenticates with.Yes
HOMEASSISTANT_BASE_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • “Use Home Assistant to Prompts.”
  • “Use Home Assistant to Tools.”
  • “Use Home Assistant to Debugging.”

Frequently asked questions

Currently, it supports control for lights (on/off, brightness), climate (temperature, HVAC modes), locks (lock/unlock), alarm control panels (arm/disarm), and humidifiers (humidity).

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