ha-mcp

What it does

Bridges Home Assistant to MCP-capable assistants so devices, states, services and automations can be driven in natural language — installable as a HACS custom component. Unofficial, so a Home Assistant upgrade can break it. Two things to settle first: exclude anything where a misfire is dangerous (locks, shutters, water heating) from the agent's reach, and accept that occupancy and room-level state reach whichever model you use. MIT.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

• Setup difficultySome setup needed
• Command lineRequired
• API keyRequired
• Sends data onlineYes

Judged automatically from the project's own metadata. Always confirm on the official page.

ha-mcp FAQ

Is ha-mcp free?

ha-mcp itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.

Do I need to install anything or write code to use ha-mcp?

It connects to an MCP-capable AI app such as Claude. It does not run on its own.

Does ha-mcp work on a phone?

No. It needs a computer.

Can I use ha-mcp commercially?

The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

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