Unity MCP Server

Unity Editor automation for AI agents: scenes, prefabs, assets, shaders, Timeline, tests, builds.

Local serverstdio

What is the Unity MCP Server?

Unity MCP is an MCP integration. Unity Editor automation for AI agents: scenes, prefabs, assets, shaders, Timeline, tests, builds.

Packages and local setup

The published nuget package is IsuzuUnityCli, version 4.4.2. Its declared MCP transport is stdio.

The package declares UNITY_MCP_STATE_DIR: Where the Editor writes its descriptors. Set this only when the default location cannot be reached, such as from WSL.; UNITY_MCP_HOST: Replaces 127.0.0.1 in the descriptor endpoint, for reaching an Editor on the Windows host from WSL..

This package has launch arguments in its registry record. Use the maintainer’s configuration for those arguments rather than launching it with only the package name.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 4.4.2 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

Browse related other integrations MCP servers for tools that cover the same kind of work.

Configuration

VariableDescriptionRequired
UNITY_MCP_STATE_DIRWhere the Editor writes its descriptors. Set this only when the default location cannot be reached, such as from WSL.Optional
UNITY_MCP_HOSTReplaces 127.0.0.1 in the descriptor endpoint, for reaching an Editor on the Windows host from WSL.Optional