funplay-unity-mcp

Overview

Funplay MCP for Unity is a comprehensive MCP server that enables AI assistants like Claude Code, Cursor, and VS Code Copilot to operate directly within Unity projects. It provides an execute_code functionality for in-memory C# execution, 91 built-in tools across various categories, and supports play mode automation with input simulation and screenshots. The server features a clean architecture with both core and full tool profiles, allowing users to select the appropriate level of functionality for their needs.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• execute_code

  Execute C# code in-memory within Unity Editor

  Try:Create a 3D platformer level with 5 floating platformsTry:Add a new script to the selected GameObjectTry:Get the current scene name and its GameObjects
• get_scene_info

  Retrieve information about the currently open Unity scene

  Try:What scene is currently open?Try:List all GameObjects in the active sceneTry:Show me the hierarchy of the current scene
• unity://project/context

  Access the current Unity project context including scene, selection, and compilation state

  Try:Read the current Unity project contextTry:What's selected in the Hierarchy?Try:Check if the project has compilation errors
• play_mode_control

  Control Unity play mode (enter, exit, pause)

  Try:Enter play modeTry:Exit play modeTry:Pause the game in play mode
• simulate_input

  Simulate keyboard and mouse input in Unity play mode

  Try:Simulate pressing the space keyTry:Click on the top-right buttonTry:Hold shift and move the mouse right
• capture_screenshot

  Take screenshots of the game view or scene view

  Try:Take a screenshot of the game viewTry:Capture the current sceneTry:Save a screenshot of what's currently visible
• get_performance_data

  Retrieve Unity performance metrics and frame data

  Try:Show me the performance statsTry:What's the current frame rate?Try:Check for performance bottlenecks
• get_console_output

  Read Unity console logs and error messages

  Try:Show me the console outputTry:Any errors in the console?Try:What warnings were logged recently?
• find_objects_by_type

  Locate Unity objects by type or component

  Try:Find all cameras in the sceneTry:Get all GameObjects with a Rigidbody componentTry:Show me all Materials in the project
• edit_component

  Modify components on GameObjects using SerializedObject

  Try:Change the color of the selected objectTry:Set the position of the main cameraTry:Modify the scale of all cubes
• check_compilation

  Check if Unity scripts compile successfully

  Try:Check for compilation errorsTry:Is the project ready to run?Try:Recompile scripts and check for errors
• execute_menu_item

  Execute Unity menu items programmatically

  Try:Save the current sceneTry:Build the player for WindowsTry:Import the package from Assets menu

Comparable tools

Installation

{
  "mcpServers": {
    "funplay": {
      "type": "http",
      "url": "http://127.0.0.1:8765/"
    }
  }
}

FAQ

What is the difference between 'core' and 'full' tool profiles?

The 'core' profile exposes 29 high-signal tools focused on essential functionality, while 'full' exposes all 91 tools. Users can switch between profiles in the MCP Server window.

Does this package work with any AI client that supports MCP?

Yes, it's vendor agnostic and works with Claude Code, Cursor, Windsurf, Codex, VS Code Copilot, and any other MCP-compatible client.

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