HomeAssistant Light MCP server

Read from the package source without running it. The installed server may list more.

• scene_activate

  Activate a scene in Home Assistant. REQUIRES user_confirmed=true - user must explicitly request scene activation.

• scene_adjust_light

  PREFERRED for controlling lights. Turn on/off, set brightness (0-100%), RGB color, color temperature (Kelvin), or effects. IMPORTANT: This only changes the light's current state - it does NOT save to any scene. REQUIRES user_confirmed=true - user must explicitly request the change.

• scene_blackout

  Turn off ALL lights. Optionally create/update a 'Blackout' scene. REQUIRES user_confirmed=true - user must explicitly request blackout.

• scene_configure

  Configure the Home Assistant connection for the Scene MCP server. Required before using other scene_ tools if not already configured via environment variables.

• scene_createwrite action

  Create a NEW scene in Home Assistant. ONLY call when user EXPLICITLY asks to create/save a NEW scene. Before calling: 1) Show current lights with scene_show_lights, 2) Ask user for mode: 'exclusive' or 'additive'. Do NOT call this to update existing scenes - use scene_update for that.

• scene_deletewrite action

  Delete a scene from Home Assistant

• scene_diagnose

  Diagnose lights and scenes. Tests connectivity, response times, identifies problems with scenes (null values, missing lights, etc.), and provides recommendations. If test_connectivity=true, REQUIRES user_confirmed=true because it toggles lights.

• scene_fix

  Fix problems found by scene_diagnose. Can fix null values, add missing lights to exclusive scenes, restore from backup, or interactively test and fix a specific scene. test_scene action REQUIRES user_confirmed=true because it changes lights.

• scene_list

  List all scenes from Home Assistant

• scene_show_lights

  SAFE read-only tool. Shows ALL Home Assistant lights with FULL details. Does NOT change anything. Use this to answer questions about light states, colors, brightness. Returns: state (on/off), brightness_pct, color_mode ('color_temp' for white light, 'rgb'/'hs'/'xy' for colored light), color_temp_kelvin (for white mode), rgb_color (for color mode). IMPORTANT: When color_mode is 'color_temp', the li

• scene_updatewrite action

  Update an existing scene with current light states. ONLY call this when user EXPLICITLY asks to save/update a scene. Do NOT call automatically after adjusting lights.

• Code scan3 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitystatic API keys via environment variables6/15
• Maintenancelast push 247 days ago4/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

HomeAssistant Light: common questions

Is HomeAssistant Light MCP server safe?

With care: it is graded C, so read the findings first (66/100). Read the HomeAssistant Light safety report

How do I install HomeAssistant Light?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does HomeAssistant Light need an API key?

Yes. The registry entry asks for HA_TOKEN.

Is HomeAssistant Light maintained?

The last commit was 259 days ago (2026-01-27). The latest release is v0.6.1.

What can I use instead of HomeAssistant Light?

Servers from other publishers that do the same job: 3D New Era AI MCP server, Dembrandt MCP server and Figma MCP Server. Compare all HomeAssistant Light alternatives.