ha-mcp README

The project's README from github.com/homeassistant-ai/ha-mcp. As one markdown file: README.md.

Breaking change (v7.3.0): ha_config_set_yaml has been moved to beta.

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The Unofficial and Awesome Home Assistant MCP Server

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A comprehensive Model Context Protocol (MCP) server that enables AI assistants to interact with Home Assistant.
Using natural language, control smart home devices, query states, execute services and manage your automations.


Demo with Claude Desktop


🚀 Get Started

The recommended way to run ha-mcp is the HA-MCP Custom Component. It installs into Home Assistant through HACS, runs the full server in-process, and works on every Home Assistant installation type — Home Assistant OS, Supervised, Container, and Core — with full feature parity. It is the easiest setup in every case, with no access token to manage.

Add it to Home Assistant via HACS (the preferred install):

Add HA-MCP to HACS

Quick start:

  1. Install the HA-MCP Custom Component from HACS — click the badge above, or in HACS open Integrations → ⋮ → Custom repositories, add https://github.com/homeassistant-ai/ha-mcp-integration (category: Integration), then Download.
  2. Restart Home Assistant.
  3. Go to Settings → Devices & Services → Add Integration, search for HA-MCP Custom Component, choose HA-MCP Server, and click Submit. Creating the entry starts the server.
  4. Copy the connect URL from the entry's Configure screen (Settings → Devices & Services → HA-MCP Custom Component → HA-MCP Server → Configure) — it is also printed in the Home Assistant log. A notification confirms the server started and points you there.
  5. Paste that URL into your AI client — done.

Connect URL. The Configure screen gives you a Home Assistant webhook URL for remote clients — https://<your-ha-domain>/api/webhook/<webhook-id> through Nabu Casa or any reverse proxy already pointed at Home Assistant (locally, http://<ha-host>:8123/api/webhook/<webhook-id>). For clients on the same network, the server is also reachable directly at http://<ha-ip>:9584/private_<random>.

The component's second entry type, the File & YAML services entry (HA-MCP File & YAML Tools), is only needed if you enable ha-mcp's opt-in file and YAML editing tools (feature flags, off by default) — skip it otherwise; you can add it later at any time. It works with any server type (in-process, app, Docker, or stdio).

Full in-process server documentation → · Setup Wizard for client-specific config →

🏠 Home Assistant app (add-on)

Prefer to run ha-mcp as a Home Assistant app (add-on)? On Home Assistant OS and Supervised installs it is a close second — no access token to manage, and it works with Claude Desktop, Claude.ai, ChatGPT, and any other MCP client on your local network or configured for remote access.

  1. Add the repository to your Home Assistant instance:

    Add Repository

    If that opens the App store without an add-repository dialog (a known Home Assistant issue), add it manually: Settings → Apps → Install app → ⋮ → Repositories, then paste https://github.com/homeassistant-ai/ha-mcp.

  2. Install "Home Assistant MCP Server" from Settings → Apps → Install app and click Start. (Home Assistant 2026.2 renamed "Add-ons" to "Apps"; on older versions this is the Add-on store.)

  3. Open the Logs tab to find your unique MCP URL.

  4. Connect your AI client to that URL — no token or credential setup needed.

Full app documentation →

⚠️ Configure exactly one install method per client. The custom component, the app, Docker/PyPI, and local stdio are independent ways to run the same server — pick one and point your AI client at that single URL. Keeping two entries for the same server in one client (for example a local uvx ha-mcp@latest entry with HOMEASSISTANT_URL / HOMEASSISTANT_TOKEN alongside an app or component URL) is a known cause of connection hangs.

Other install methods

These run the server outside Home Assistant — useful for Container / Core installs (which can't run apps) or a separate host. The Setup Wizard generates the exact client-specific config for each.

🌐 Remote access (Nabu Casa / Webhook Proxy app / OpenAI Tunnel)

Using the HA-MCP custom component? You do not need the Webhook Proxy — the component has its own built-in webhook for remote access (see the Get Started quick start at the top). The proxy is for the app (it can also front another external server via its mcp_server_url option). The OpenAI Tunnel below is different: it applies to any install method when Home Assistant isn't publicly reachable at all (no Nabu Casa or reverse proxy).

Already have Nabu Casa or another reverse proxy pointing at your Home Assistant? The Webhook Proxy app routes MCP traffic through your existing setup — no separate tunnel or port forwarding needed.

  1. Install the MCP Server app (see above) and the Webhook Proxy app from the same store
  2. Start the webhook proxy and restart Home Assistant when prompted
  3. Copy the webhook URL from the app logs:
    MCP Server URL (remote): https://xxxxx.ui.nabu.casa/api/webhook/mcp_xxxxxxxx
    
  4. Configure your AI client with that URL

For other remote access methods (Cloudflare Tunnel, custom reverse proxy), see the Setup Wizard.

ChatGPT / Codex behind a firewall (OpenAI Tunnel). ChatGPT connectors normally require a publicly reachable URL. If you can't (or don't want to) expose one, the community OpenAI Tunnel for HA-MCP integration by @norpol runs OpenAI's tunnel-client inside Home Assistant and connects your local MCP server URL to an OpenAI-hosted tunnel over an outbound-only connection — no port forwarding, reverse proxy, or public URL. Point it at your ha-mcp URL, then attach the ChatGPT connector to the same tunnel ID. See the FAQ entry and #1811.

Webhook proxy documentation →

🧪 Demo server (Windows / macOS / Linux)

Want to try ha-mcp before connecting your own Home Assistant? No paid subscription required. These one-command scripts set up a local stdio connection to a hosted demo environment so you can see it working in a few minutes. Each script's Connect your own Home Assistant link then shows how to point it at your instance.

🍎 macOS
  1. Go to claude.ai and sign in (or create a free account)
  2. Open Terminal and run:
    curl -LsSf https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/scripts/install-macos.sh | sh
    
  3. Download Claude Desktop (or restart: Claude menu → Quit)
  4. Ask Claude: "Can you see my Home Assistant?"

You're now connected to the demo environment! Connect your own Home Assistant →

🐧 Linux

Anthropic doesn't ship Claude Desktop for Linux, so pick one path:

Claude Desktop — free, via the community build:

  1. Install the community Claude Desktop for Linux build and sign in with a free claude.ai account
  2. Open Terminal and run:
    curl -LsSf https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/scripts/install-linux.sh | sh
    
  3. Restart Claude Desktop, then ask: "Can you see my Home Assistant?"

Claude Code — official CLI, requires a paid Claude plan:

  1. Install Claude Code: curl -fsSL https://claude.ai/install.sh | bash
  2. Configure ha-mcp, then run claude:
    curl -LsSf https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/scripts/install.sh | sh -s -- --claude-code
    
  3. Start claude, run /mcp to confirm, then ask: "Can you see my Home Assistant?"

Full Linux guide →

🪟 Windows
  1. Go to claude.ai and sign in (or create a free account)
  2. Open Windows PowerShell (from Start menu) and run:
    irm https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/scripts/install-windows.ps1 | iex
    
  3. Download Claude Desktop (or restart: File → Exit)
  4. Ask Claude: "Can you see my Home Assistant?"

You're now connected to the demo environment! Connect your own Home Assistant →

🧙 Setup Wizard for 15+ clients

Claude Code, Gemini CLI, ChatGPT, Open WebUI, VSCode, Cursor, and more.

Open Setup Wizard

Having issues? Check the FAQ & Troubleshooting


💬 What Can You Do With It?

Just talk to Claude naturally. Here are some real examples:

You Say What Happens
"Create an automation that turns on the porch light at sunset" Creates the automation with proper triggers and actions
"Add a weather card to my dashboard" Updates your Lovelace dashboard with the new card
"The motion sensor automation isn't working, debug it" Analyzes execution traces, identifies the issue, suggests fixes
"Make my morning routine automation also turn on the coffee maker" Reads the existing automation, adds the new action, updates it
"Create a script that sets movie mode: dim lights, close blinds, turn on TV" Creates a reusable script with the sequence of actions

Spend less time configuring, more time enjoying your smart home.


✨ Features

Category Capabilities
🔍 Search Fuzzy entity search, deep config search, system overview
🏠 Control Any service, bulk device control, real-time states
🔧 Manage Automations, scripts, helpers, dashboards, areas, zones, groups, calendars, blueprints
📊 Monitor History, statistics, camera snapshots, automation traces, ZHA devices
💾 System Backup/restore, updates, apps, device registry
🔒 Safety Read Only Mode toggle, per-tool enable/disable, tool security policies (user approval), automatic edit backups
Complete Tool List (87 tools)
Category Tools
Apps (add-ons) ha_get_app, ha_manage_app
Areas & Floors ha_list_floors_areas, ha_remove_area_or_floor, ha_set_area_or_floor
Assist ha_manage_pipeline
Automations ha_config_get_automation, ha_config_remove_automation, ha_config_set_automation
Blueprints ha_manage_blueprints
Calendar ha_config_get_calendar_events, ha_config_remove_calendar_event, ha_config_set_calendar_event
Camera ha_get_camera_image
Dashboard ha_get_dashboard_screenshot (beta)
Dashboards ha_config_delete_dashboard_resource, ha_config_delete_dashboard, ha_config_get_dashboard, ha_config_list_dashboard_resources, ha_config_set_dashboard_resource, ha_config_set_dashboard
Developer ha_dev_manage_server, ha_dev_manage_settings
Device Registry ha_get_device, ha_remove_device, ha_set_device
Energy ha_manage_energy_prefs
Entity Registry ha_get_entity_exposure, ha_get_entity, ha_remove_entity, ha_set_entity
Files ha_delete_file (beta), ha_list_files (beta), ha_read_file (beta), ha_write_file (beta)
Groups ha_config_list_groups, ha_config_remove_group, ha_config_set_group
HACS ha_get_hacs_info, ha_manage_hacs
Helper Entities ha_config_list_helpers, ha_config_set_helper, ha_remove_helpers_integrations
History & Statistics ha_get_automation_traces, ha_get_history, ha_get_logs
Integrations ha_get_integration, ha_get_system_health, ha_set_integration
Labels & Categories ha_config_get_category, ha_config_get_label, ha_config_remove_category, ha_config_remove_label, ha_config_set_category, ha_config_set_label
Matter ha_manage_radio
Scenes ha_config_get_scene, ha_config_remove_scene, ha_config_set_scene
Scripts ha_config_get_script, ha_config_remove_script, ha_config_set_script
Search & Discovery ha_get_overview, ha_get_state, ha_search
Service & Device Control ha_bulk_control, ha_call_event, ha_call_service, ha_get_operation_status, ha_list_services
System ha_config_get_yaml (beta), ha_config_set_yaml (beta), ha_manage_backup, ha_manage_custom_tool (beta), ha_manage_security_policy, ha_manage_theme, ha_manage_updates, ha_reload_core, ha_restart
Todo Lists ha_get_todo, ha_remove_todo_item, ha_set_todo_item
Utilities ha_eval_template, ha_report_issue
Zones ha_get_zone, ha_remove_zone, ha_set_zone

🆚 ha-mcp vs. Home Assistant's built-in MCP Server

Home Assistant ships its own MCP Server integration. It is built on the Assist pipeline, so a connected MCP client can read and control the entities you have exposed to Assist and run the intents Assist understands — handy for voice-style control of already-exposed devices.

ha-mcp is a standalone server built for configuring, building, and debugging your smart home, not just controlling it. On top of device control, it adds capabilities the built-in integration does not have:

Capability Built-in MCP Server ha-mcp
Control exposed devices, query states Yes Yes
Entity scope Only entities exposed to Assist Everything in Home Assistant
Create / edit automations, scripts, scenes No Yes
Build & edit dashboards No Yes
Debug automations from traces, read history & logs No Yes
Manage helpers, areas, zones, labels, groups No Yes
Backups, apps, HACS, device & entity registry No Yes

Rule of thumb: Use the built-in integration for voice-style control of devices you have already exposed; use ha-mcp when you want an AI assistant that can also build

ha-mcp (homeassistant-ai/ha-mcp)

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5.1K ·GitHub
What is this?ha-mcp is an unofficial Model Context Protocol (MCP) server that lets AI assistants like Claude, ChatGPT, and others control and query a Home Assistant smart home installation using natural language — creating automations, controlling devices, managing dashboards and more.
Is this a Home Assistant add-on or a server I run myself?It can be either: the recommended setup is a HACS custom component that runs in-process inside Home Assistant, but you can also run it as a Home Assistant app (add-on), a Docker container, a PyPI/uvx package, or locally over stdio — pick only one install method per client.
How do I get it running?Install the HA-MCP Custom Component through HACS (Integrations → ⋮ → Custom repositories → Download), restart Home Assistant, add the HA-MCP Server integration, then copy the generated connect URL from the Configure screen into your AI client.
Which AI clients can I connect it to?It supports Claude Desktop, Claude Code, Claude.ai, ChatGPT/Codex, Gemini CLI, Open WebUI, VS Code, Cursor, and 15+ other MCP-compatible clients, each configured through the included Setup Wizard.
Is the stdio connection mode reliable?No — stdio has known transport issues and connection problems that the streamable HTTP mode doesn't have, so it's recommended only for demo/testing, not a real setup; running two install methods for the same server in one client is also a documented cause of connection hangs.
Can I control what the AI is allowed to change in my home?Yes — it ships a Read Only Mode toggle, per-tool enable/disable, tool security policies that require user approval, and automatic backups before any edit are made.
Can I try it without connecting my own Home Assistant?Yes — one-command setup scripts for macOS, Linux, and Windows connect Claude Desktop or Claude Code to a free hosted demo Home Assistant environment, no paid subscription required.
How many tools does it give the AI access to?87 tools covering automations, scripts, dashboards, areas, helpers, history, cameras, backups, HACS, and Matter radios.
How can I use it remotely when I'm away from home?If you already have Nabu Casa or a reverse proxy, the Webhook Proxy app routes MCP traffic through it; for ChatGPT/Codex behind a firewall, a community OpenAI Tunnel app creates an outbound-only connection without exposing a public URL.
What can I actually ask it to do?Natural-language requests like 'create an automation that turns on the porch light at sunset' or 'the motion sensor automation isn't working, debug it' get turned into real automations, dashboard edits, or trace analysis.
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