UnityMCPIntegration

MCP.Pizza Chef: quazaai

A companion package sits inside the Unity Editor and opens a live link to Claude Desktop, so your assistant can describe the current scene, list game objects, read the console, read and rewrite files in the project folder, and run C# right in the editor. Fifteen tools actually ship, not the sixteen the readme advertises: there is no list_scripts. Nothing needs paying for, but the code it runs is not sandboxed and never asks you to confirm, and the project has been quiet since April 2025.

Unmaintained · no code changes since April 2025

Coding

Use This MCP server To

Ask what is in my Unity scene right now Find every material or prefab in my project Read the newest errors out of the Unity console Run a short C# snippet to move objects around Read a gameplay script and get it explained back Rewrite a config file in my project from chat

README

🚀 Advacned Unity MCP Integration

This package provides a seamless integration between Model Context Protocol (MCP) and Unity Editor, allowing AI assistants to understand and interact with your Unity projects in real-time. With this integration, AI assistants can access information about your scene hierarchy, project settings, and execute code directly in the Unity Editor context.

📚 Features

Browse and manipulate project files directly
Access real-time information about your Unity project
Understand your scene hierarchy and game objects
Execute C# code directly in the Unity Editor
Monitor logs and errors
Control the Editor's play mode
Wait For Code Execution

UnityMCPIntegration FAQ

Is this still being worked on?

Not lately. The last change landed in April 2025, so it has sat still for well over a year. It still runs, but nobody is fixing Unity version breakage.

Do I need to pay for anything or get a key?

No. There is no account, no key and no usage fee. You do need Unity 2021.3 or newer and Node 18 or newer already installed on the same machine.

Which apps does it work in?

It is set up for Claude Desktop, and there is a one-line Smithery installer for that. Any app that can launch a local tool server can point at it too.

Can I use this to change my game while Unity is closed?

No. The Unity Editor has to be open with the project loaded. If Unity is not running, every tool comes back empty.

Is it safe to let it run code in my editor?

Treat it with care. The run-code tool executes whatever C# the assistant writes, immediately, with no preview and no confirmation, and that code has the same reach over your machine as the editor itself.

Can it touch files outside the game project?

It should not. Every file request is resolved against your project folder and rejected if it lands outside. Inside the project, though, it can overwrite files with no undo prompt.

Can I use this to find all the prefabs in a messy project?

Yes. There is a search-by-asset-type tool, so you can ask for every Material, Prefab or Scene and get the paths back in one reply.

How hard is the setup?

Fiddly. You add a package to Unity, install the server's dependencies, build it, then point your assistant at the built file and a local port. Budget half an hour.