MCP for Unity

About

Connects an AI assistant to a running Unity Editor. It exposes tools to create and edit GameObjects, components, prefabs, scenes, materials, shaders, textures, animation, physics, VFX and UI Toolkit. It can also write and validate C# scripts, read the console, run Unity Test Framework tests, manage packages and trigger player builds.

Runs locally with uvx over stdio (or optionally HTTP), and needs Python with uv. The Unity package must also be installed in your project so the Editor can connect to the server. No API key or sign-in is needed for local use. Maintained by Coplay and not affiliated with Unity Technologies.

What you can do

• Create, modify and delete GameObjects and their components
• Load, save and query scenes and prefabs
• Create, edit and validate C# scripts
• Manage assets, materials, shaders and textures
• Run Unity Test Framework tests and read console output
• Trigger player builds and switch platforms
• Manage packages, physics, animation, VFX and UI Toolkit
• Fetch Unity documentation and inspect APIs via reflection

Tools 43

• apply_text_edits

  Apply text edits to script content.

• batch_execute

  Execute multiple Unity operations in a single batch.

• create_script

  Create new C# scripts.

• debug_request_context

  Debug and inspect MCP request context

• delete_script

  Delete C# scripts.

• execute_custom_tool

  Execute custom Unity Editor tools registered by the project.

• execute_code

  Execute arbitrary C# code inside the Unity Editor with access to Unity APIs.

• execute_menu_item

  Execute Unity Editor menu items.

• find_gameobjects

  Find GameObjects in the scene by various criteria.

• find_in_file

  Search for content within Unity project files.

• get_sha

  Get SHA hash of script content

• get_test_job

  Get status of an async test job.

From the package’s own manifest, not a live connection, on 3 Oct 2026.

Example prompts

• Create a cube at the origin and add a Rigidbody to it

• Write a PlayerController C# script and attach it to the Player object

• Run all play mode tests and show me the failures

• Read the Unity console and tell me what errors are present

Set up

Every client starts MCP for Unity on your machine with the same command. Pick yours; the page remembers your choice.

claude mcp add --transport stdio unity -- uvx --from mcpforunityserver mcp-for-unity --transport stdio

{
  "mcpServers": {
    "unity": {
      "command": "uvx",
      "args": [
        "--from",
        "mcpforunityserver",
        "mcp-for-unity",
        "--transport",
        "stdio"
      ]
    }
  }
}

{
  "mcpServers": {
    "unity": {
      "command": "uvx",
      "args": [
        "--from",
        "mcpforunityserver",
        "mcp-for-unity",
        "--transport",
        "stdio"
      ]
    }
  }
}

code --add-mcp '{"name":"unity","type":"stdio","command":"uvx","args":["--from","mcpforunityserver","mcp-for-unity","--transport","stdio"]}'

{
  "servers": {
    "unity": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "--from",
        "mcpforunityserver",
        "mcp-for-unity",
        "--transport",
        "stdio"
      ]
    }
  }
}

{
  "mcpServers": {
    "unity": {
      "command": "uvx",
      "args": [
        "--from",
        "mcpforunityserver",
        "mcp-for-unity",
        "--transport",
        "stdio"
      ]
    }
  }
}

codex mcp add unity -- uvx --from mcpforunityserver mcp-for-unity --transport stdio

[mcp_servers.unity]
command = "uvx"
args = ["--from", "mcpforunityserver", "mcp-for-unity", "--transport", "stdio"]

gemini mcp add unity uvx -- --from mcpforunityserver mcp-for-unity --transport stdio

{
  "mcpServers": {
    "unity": {
      "command": "uvx",
      "args": [
        "--from",
        "mcpforunityserver",
        "mcp-for-unity",
        "--transport",
        "stdio"
      ]
    }
  }
}

FAQ

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https://mcp.tc/i/unity.json

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