unity-mcp-server

Skill by ara.so — MCP Skills collection.

Overview

unity-mcp-server is a comprehensive Model Context Protocol (MCP) server that connects AI assistants (Claude Desktop, Cursor, Windsurf) to Unity Editor and Unity Hub. It provides 288 tools across 30+ categories for AI-assisted game development, including scene management, GameObject manipulation, component wiring, builds, profiling, Shader Graph editing, terrain sculpting, NavMesh baking, and multiplayer scenarios.

The server uses a two-tier architecture: ~70 core tools exposed directly, and ~130+ advanced tools accessed via unity_advanced_tool proxy with lazy loading to avoid overwhelming MCP clients.

Architecture:

AI Assistant ↔ MCP Server (Node.js) ↔ Unity Editor Plugin (HTTP bridge) ↔ Unity Editor
                    ↕
                Unity Hub CLI

Installation