mcp-hass

The skill for control Home Assistant smart home devices and query states using MCP protocol.

Install

npx skills add https://github.com/aahl/skills --skill mcp-hass

SKILL.md

---name: mcp-hassdescription: The skill for control Home Assistant smart home devices and query states using MCP protocol.---

Home Assistant

Control Home Assistant smart home and query states using MCP protocol.

Prerequisites

Enable MCP server in Home Assistant:

Browse to your Home Assistant instance.
Go to Settings > Devices & services.
In the bottom right corner, select the + Add Integration button.
From the list, select Model Context Protocol.
Follow the instructions on screen to complete the setup.

Config

When prompted that the MCP server does not exist, remind the user to configure the HASS_BASE_URL and HASS_ACCESS_TOKEN environment variables by executing the following command to add the configuration:

npx -y mcporter config add home-assistant \
  --transport http \
  --url "${HASS_BASE_URL:-http://homeassistant.local:8123}/api/mcp" \
  --header "Authorization=Bearer \${HASS_ACCESS_TOKEN}"

Usage

# Get states
npx -y mcporter call home-assistant.GetLiveContext

# Turn on the device
npx -y mcporter call home-assistant.HassTurnOn(name: "Bedroom Light")
npx -y mcporter call home-assistant.HassTurnOn(name: "Light", area: "Bedroom")

# Turn off the device
npx -y mcporter call home-assistant.HassTurnOff(name: "Bedroom Light")
npx -y mcporter call home-assistant.HassTurnOff(area: "Bedroom", domain: ["light"])

# Control light
# brightness: The percentage of the light, where 0 is off and 100 is fully lit.
# color: Name of color
npx -y mcporter call home-assistant.HassLightSet(name: "Bedroom Light", brightness: 50)

# Control fan
# percentage: The percentage of the fan, where 0 is off and 100 is full speed.
npx -y mcporter call home-assistant.HassFanSetSpeed(name: "Fan", area: "Bedroom", percentage: 80)

Execute the following command to learn about specific usage methods:

npx -y mcporter list home-assistant --schema --all-parameters

About `mcporter`

To improve compatibility, use npx -y mcporter instead of mcporter when executing commands.
https://github.com/steipete/mcporter/raw/refs/heads/main/docs/call-syntax.md
https://github.com/steipete/mcporter/raw/refs/heads/main/docs/cli-reference.md

Related skills

find-skillsvercel-labs3.6MHelps users discover and install agent skills when they ask questions like "how do I do X", "find a skill for X", "is there a skill that can...", or express interest in extending capabilities. This skill should be used when the user is looking for functionality that might exist as an installable skill.handoffmattpocock883KCompact the current conversation into a handoff document for another agent to pick up.microsoft-foundrymicrosoft618KBuild, deploy, evaluate, optimize, fine-tune, and manage Microsoft Foundry agents, models, and resources end to end. USE FOR: foundry, azd ai agent, azd provision/deploy, hosted agent scaffold/develop/run/deploy/troubleshoot, prompt agent create, create agent, update agent, add tool to agent, invoke agent, agent.yaml, agent insights, pull agent insights, evaluate agent, batch eval, continuous eval, continuous monitoring, agent CI/CD, optimize prompt, improve prompt, prompt optimizer, optimize ag cavemanjuliusbrussee544KUltra-compressed communication mode that cuts output tokens while keeping technical accuracy. Levels: lite, full, ultra and the wenyan variants. Use for /caveman, "caveman mode", "talk like caveman", "be brief" or "less tokens".