unity-mcp-toolkit

A community-driven collection of custom MCP tools that extend Unity's official MCP integration. Each tool adds editor automation capabilities that AI coding agents can use to interact with the Unity Editor.

• Unity 6+ (6000.0 or later)
• [Unity AI Assistant](https://docs.unity3d.com/Packages/com.unity.ai.assistant@2.0/manual/index.html) (com.unity.ai.assistant 2.4.0-pre.1 or later) — this is a pre-release package

Add the following to your project's Packages/manifest.json:

{
    "dependencies": {
        "com.whatupgames.unity-mcp-toolkit": "https://github.com/yecats/unity-mcp-toolkit.git"
    }
}

Or use Window > Package Manager > + > Add package from git URL and enter:

https://github.com/yecats/unity-mcp-toolkit.git

| Tool | Description | |---|---| | McpToolkit.GameViewCapture | Captures the Game View (the final rendered frame the player sees, including UI overlays and post-processing) and returns it as a base64-encoded PNG. Automatically accounts for OS display scaling (e.g. 125%, 150%, Retina). Works in Edit and Play mode. | | McpToolkit.ForceDomainRefresh | Forces a domain reload even when the Unity Editor is not in the foreground. Use after modifying scripts externally to trigger recompilation without switching to Unity. |

You can toggle individual MCP Toolkit tools on and off in Edit > Project Settings > AI > Unity MCP > Tools. Custom tools appear under the MCP Toolkit category.

This toolkit is meant to grow over time with tools the community finds useful. If you have an idea for a tool that would make your workflow better, chances are others would benefit from it too. Contributions are welcome and encouraged!

Please keep the following in mind:

• Follow the Unity convention for file structure. Tool logic goes in Editor/Tools/,