Home Assistant (ha-mcp)

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Control and configure Home Assistant devices, states, automations, scripts and dashboards in natural language.

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listing.install

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uvx ha-mcp@latest

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  • HOMEASSISTANT_URL Your Home Assistant URL.
  • HOMEASSISTANT_TOKEN listing.env.secret Home Assistant long-lived access token.
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mcp.tc/i/home-assistant

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An unofficial, community-built server that connects an AI assistant to a Home Assistant instance. It lets you control smart home devices, query entity states, call services and manage automations, scripts and dashboards using natural language.

It can run as a Home Assistant custom component installed through HACS, as a Home Assistant app (add-on), in Docker, or locally with uvx ha-mcp@latest. The component and app serve streamable HTTP and need no access token. Docker and uvx setups need HOMEASSISTANT_URL and a long-lived access token in HOMEASSISTANT_TOKEN. The stdio transport is documented as having known issues.

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  • Control smart home devices and call Home Assistant services
  • Query entity states
  • Manage automations and scripts
  • Configure dashboards
  • Run as a HACS custom component, app, Docker or uvx package
  • Optional OIDC authentication for remote access

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  • Turn off all the lights in the living room

  • What is the current temperature in the bedroom?

  • Create an automation that turns on the porch light at sunset

  • List my automations and tell me which ones are disabled

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listing.setup.local

Claude Code

  1. Run this in a terminal, in your project folder:
claude mcp add --transport stdio home-assistant --env "HOMEASSISTANT_URL=<YOUR_HOMEASSISTANT_URL>" --env "HOMEASSISTANT_TOKEN=<YOUR_HOMEASSISTANT_TOKEN>" -- uvx ha-mcp@latest
  1. Start Claude Code and type /mcp. home-assistant should show as connected.

Add --scope user to make it available in every project. Replace the placeholders with your own values.

Claude Desktop

  1. Open Settings → Developer → Edit Config. It opens claude_desktop_config.json. Add:
claude_desktop_config.json
{
  "mcpServers": {
    "home-assistant": {
      "command": "uvx",
      "args": [
        "ha-mcp@latest"
      ],
      "env": {
        "HOMEASSISTANT_URL": "<YOUR_HOMEASSISTANT_URL>",
        "HOMEASSISTANT_TOKEN": "<YOUR_HOMEASSISTANT_TOKEN>"
      }
    }
  }
}
  1. Save the file and restart Claude Desktop. Replace the placeholders with your own values.

Needs uv (Python) on your computer. The file lives in ~/Library/Application Support/Claude/ on macOS and %APPDATA%\Claude\ on Windows.

Cursor

Add to Cursor a11y.new_tab

Or add it by hand to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project):

mcp.json
{
  "mcpServers": {
    "home-assistant": {
      "command": "uvx",
      "args": [
        "ha-mcp@latest"
      ],
      "env": {
        "HOMEASSISTANT_URL": "<YOUR_HOMEASSISTANT_URL>",
        "HOMEASSISTANT_TOKEN": "<YOUR_HOMEASSISTANT_TOKEN>"
      }
    }
  }
}

Needs uv (Python) on your computer. Replace the placeholders with your own values.

VS Code

Add it to .vscode/mcp.json. VS Code asks for the secret the first time and stores it securely:

.vscode/mcp.json
{
  "servers": {
    "home-assistant": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "ha-mcp@latest"
      ],
      "env": {
        "HOMEASSISTANT_URL": "<YOUR_HOMEASSISTANT_URL>",
        "HOMEASSISTANT_TOKEN": "${input:homeassistant-token}"
      }
    }
  },
  "inputs": [
    {
      "type": "promptString",
      "id": "homeassistant-token",
      "description": "HOMEASSISTANT_TOKEN",
      "password": true
    }
  ]
}

Needs uv (Python) on your computer.

Devin Desktop

  1. Add it to ~/.config/devin/mcp_config.json (macOS and Linux) or %APPDATA%\devin\mcp_config.json (Windows):
mcp_config.json
{
  "mcpServers": {
    "home-assistant": {
      "command": "uvx",
      "args": [
        "ha-mcp@latest"
      ],
      "env": {
        "HOMEASSISTANT_URL": "<YOUR_HOMEASSISTANT_URL>",
        "HOMEASSISTANT_TOKEN": "<YOUR_HOMEASSISTANT_TOKEN>"
      }
    }
  }
}
  1. Refresh the MCP server list in Cascade. Replace the placeholders with your own values.

Devin Desktop is the new name for Windsurf.

Codex

codex mcp add home-assistant --env "HOMEASSISTANT_URL=<YOUR_HOMEASSISTANT_URL>" --env "HOMEASSISTANT_TOKEN=<YOUR_HOMEASSISTANT_TOKEN>" -- uvx ha-mcp@latest

Or edit ~/.codex/config.toml directly:

config.toml
[mcp_servers.home-assistant]
command = "uvx"
args = ["ha-mcp@latest"]
env = { HOMEASSISTANT_URL = "<YOUR_HOMEASSISTANT_URL>", HOMEASSISTANT_TOKEN = "<YOUR_HOMEASSISTANT_TOKEN>" }

Needs uv (Python) on your computer. Replace the placeholders with your own values.

Gemini CLI

gemini mcp add -e "HOMEASSISTANT_URL=<YOUR_HOMEASSISTANT_URL>" -e "HOMEASSISTANT_TOKEN=<YOUR_HOMEASSISTANT_TOKEN>" home-assistant uvx ha-mcp@latest

This adds it to the current project. Add -s user to use it everywhere.

Any client

Most clients that start local servers accept this shape:

{
  "mcpServers": {
    "home-assistant": {
      "command": "uvx",
      "args": [
        "ha-mcp@latest"
      ],
      "env": {
        "HOMEASSISTANT_URL": "<YOUR_HOMEASSISTANT_URL>",
        "HOMEASSISTANT_TOKEN": "<YOUR_HOMEASSISTANT_TOKEN>"
      }
    }
  }
}

Zed puts servers under context_servers in its settings, with the same command, args and env fields.

Needs uv (Python) on your computer. Replace the placeholders with your own values.

listing.faq

Can I paste mcp.tc/i/home-assistant into my MCP client?

No. Home Assistant (ha-mcp) runs on your own computer, started by your client, so it has no web address to connect to. The quick link is the page to share; the install command is uvx ha-mcp@latest.

Does Home Assistant (ha-mcp) need an API key?

Yes. It reads HOMEASSISTANT_URL and HOMEASSISTANT_TOKEN from its environment, and HOMEASSISTANT_TOKEN is a secret. Put the value in your client's config on your own machine, never in a shared file.

Is Home Assistant (ha-mcp) a remote or a local server?

Local. Your client starts it as a process on your computer with uvx ha-mcp@latest, which needs uv (Python).

What can Home Assistant (ha-mcp) do?

You can control smart home devices and call Home Assistant services, query entity states and manage automations and scripts.

Which clients can use it?

Any client that starts local servers: Claude Code, Claude Desktop, Cursor, VS Code, Devin Desktop, Codex, Gemini CLI, Zed and others. claude.ai and ChatGPT only connect to remote servers.

Who wrote this page?

mcp.tc's robot read Home Assistant (ha-mcp)'s public metadata (its package and repository pages), and an AI model drafted the text from it. A person reviews anything the checks can't confirm. The text can still be wrong, so if you spot a mistake, use Report this listing on this page.

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JSON

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https://mcp.tc/i/home-assistant.json

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