HA MCP Free and Open Source Desktop App CookApps CookApps Marketplace

Overview

HA MCP is an open-source, high-performance solution engineered to solve foundational workflow challenges in the Python ecosystem. Built on local-first principles to ensure privacy, performance, and complete data ownership, it provides a unified architecture for modern developers and technical power users.

How It Works

HA MCP operates through structured, deterministic execution stages:

Home Assistant Instance Discovery: Connects to local Home Assistant core installations via authenticated REST and WebSocket APIs.

Tool Schema Registration: Automatically registers over 80 discrete tools spanning climate control, lights, security switches, and media players.

Agent Intent Orchestration: Translates natural language prompts from Claude or ChatGPT into precise Home Assistant service calls.

State Telemetry Verification: Reads entity state changes and sensor feedback in real time to verify successful automation execution.

Key Technical Features & Capabilities

High-Performance Architecture: Engineered on top of Python, ai, claude, minimizing runtime latency and resource overhead.

Local-First Reliability: Executes core workloads locally on host hardware with zero unexpected external telemetry or cloud vendor lock-in.

Extensible Modularity: Cleanly decoupled module boundaries enable rapid integration, custom scripting, and plugin ecosystem extensibility.

Standardized Developer Tooling: Incorporates automated dependency workflows, reproducible builds, and developer-friendly CLI hooks.

Architecture & Technology Stack

Primary Languages: Python, ai, claude

Build Systems & Runtimes: Python 3.10+ / uv / virtualenv (uv / pip / poetry)

Supported Platforms: macOS (Apple Silicon & Intel), Windows 10/11 x64, Linux

System Requirements

Specification	Minimum Requirement	Recommended Specification
Operating System	macOS 12.0+ / Windows 10 x64 / Ubuntu 22.04	macOS 14.0+ Sonoma / Windows 11 x64
Processor Architecture	4-Core x86_64 or Apple Silicon M1	8-Core Apple Silicon / Core i7+
Memory (RAM)	4 GB Unified Memory	16 GB+ High-Speed RAM
Disk Space	1 GB free SSD storage	5 GB+ free SSD storage

Installation & Setup Guide

macOS Installation

Download verified release installer from CookApps or upstream releases.

Drag application package into /Applications.

Windows Installation

Download official setup binary (.exe / .msi).

Run installer and launch from Start Menu.

Building from Source

bash

git clone https://github.com/homeassistant-ai/ha-mcp.git
cd ha-mcp
pip install -e .

How to Use & Workflow

Application Launch: Launch HA MCP to initialize runtime state and local storage caches.

Configuration & Workspace: Set up local configuration, environment flags, or CLI paths.

Execution Workflow: Execute automated pipelines or interact through the visual interface.

Data Verification: Review generated outputs stored deterministically in designated directories.

Troubleshooting & Common Issues

Issue: Port or Resource Collision on Startup.

*Cause*: A zombie process or background daemon is holding active port bindings.

*Resolution*: Terminate holding processes before relaunching the application.

Issue: Missing native toolchain dependencies during build.

*Cause*: Host system lacks C++ or platform compilation tools.

*Resolution*: Install Xcode Command Line Tools (macOS) or Visual Studio Build Tools (Windows).

HA MCP

Overview

How It Works

Key Technical Features & Capabilities

Architecture & Technology Stack

System Requirements

Installation & Setup Guide

macOS Installation

Windows Installation

Building from Source

How to Use & Workflow

Troubleshooting & Common Issues

How to Use & Getting Started

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