unity-mcp/Server
dsarno 35165e11b3
Payload-safe paging for hierarchy/components + safer asset search + docs (#490)
* Fix test teardown to avoid dropping MCP bridge

CodexConfigHelperTests was calling MCPServiceLocator.Reset() in TearDown, which disposes the active bridge/transport during MCP-driven test runs. Replace with restoring only the mutated service (IPlatformService).

* Avoid leaking PlatformService in CodexConfigHelperTests

Capture the original IPlatformService before this fixture runs and restore it in TearDown. This preserves the MCP connection safety fix (no MCPServiceLocator.Reset()) while avoiding global state leakage to subsequent tests.

* Fix SO MCP tooling: validate folder roots, normalize paths, expand tests; remove vestigial SO tools

* Remove UnityMCPTests stress artifacts and ignore Assets/Temp

* Ignore UnityMCPTests Assets/Temp only

* Clarify array_resize fallback logic comments

* Refactor: simplify action set and reuse slash sanitization

* Enhance: preserve GUID on overwrite & support Vector/Color types in ScriptableObject tools

* Fix: ensure asset name matches filename to suppress Unity warnings

* Fix: resolve Unity warnings by ensuring asset name match and removing redundant import

* Refactor: Validate assetName, strict object parsing for vectors, remove broken SO logic from ManageAsset

* Hardening: reject Windows drive paths; clarify supported asset types

* Delete FixscriptableobjecPlan.md

* Paginate get_hierarchy and get_components to prevent large payload crashes

* dev: add uvx dev-mode refresh + safer HTTP stop; fix server typing eval

* Payload-safe paging defaults + docs; harden asset search; stabilize Codex tests

* chore: align uvx args + coercion helpers; tighten safety guidance

* chore: minor cleanup + stabilize EditMode SO tests
2025-12-28 20:57:57 -08:00
..
src Payload-safe paging for hierarchy/components + safer asset search + docs (#490) 2025-12-28 20:57:57 -08:00
tests Payload-safe paging for hierarchy/components + safer asset search + docs (#490) 2025-12-28 20:57:57 -08:00
DOCKER_OVERVIEW.md Publish to Docker Hub (#468) 2025-12-19 17:24:04 -04:00
Dockerfile HTTP Server, uvx, C# only custom tools (#375) 2025-11-24 23:21:06 -04:00
LICENSE Publish to pypi (#466) 2025-12-19 16:43:44 -04:00
README.md chore: bump version to 8.3.0 2025-12-20 00:08:32 +00:00
__init__.py Copy the MCP server to the top level (#354) 2025-10-25 00:53:53 -04:00
pyproject.toml Payload-safe paging for hierarchy/components + safer asset search + docs (#490) 2025-12-28 20:57:57 -08:00
pyrightconfig.json Copy the MCP server to the top level (#354) 2025-10-25 00:53:53 -04:00
uv.lock Payload-safe paging for hierarchy/components + safer asset search + docs (#490) 2025-12-28 20:57:57 -08:00

README.md

MCP for Unity Server

MCP python License Discord

Model Context Protocol server for Unity Editor integration. Control Unity through natural language using AI assistants like Claude, Cursor, and more.

Maintained by Coplay - This project is not affiliated with Unity Technologies.

💬 Join our community: Discord Server

Required: Install the Unity MCP Plugin to connect Unity Editor with this MCP server. You also need uvx (requires uv) to run the server.


Installation

Option 1: PyPI

Install and run directly from PyPI using uvx.

Run Server (HTTP):

uvx --from mcpforunityserver mcp-for-unity --transport http --http-url http://localhost:8080

MCP Client Configuration (HTTP):

{
  "mcpServers": {
    "UnityMCP": {
      "url": "http://localhost:8080/mcp"
    }
  }
}

MCP Client Configuration (stdio):

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

Option 2: From GitHub Source

Use this to run the latest released version from the repository. Change the version to main to run the latest unreleased changes from the repository.

{
  "mcpServers": {
    "UnityMCP": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/CoplayDev/unity-mcp@v8.3.0#subdirectory=Server",
        "mcp-for-unity",
        "--transport",
        "stdio"
      ]
    }
  }
}

Option 3: Docker

Use Pre-built Image:

docker run -p 8080:8080 msanatan/mcp-for-unity-server:latest --transport http --http-url http://0.0.0.0:8080

Build Locally:

docker build -t unity-mcp-server .
docker run -p 8080:8080 unity-mcp-server --transport http --http-url http://0.0.0.0:8080

Configure your MCP client with "url": "http://localhost:8080/mcp".

Option 4: Local Development

For contributing or modifying the server code:

# Clone the repository
git clone https://github.com/CoplayDev/unity-mcp.git
cd unity-mcp/Server

# Run with uv
uv run src/main.py --transport stdio

Configuration

The server connects to Unity Editor automatically when both are running. No additional configuration needed.

Environment Variables:

  • DISABLE_TELEMETRY=true - Opt out of anonymous usage analytics
  • LOG_LEVEL=DEBUG - Enable detailed logging (default: INFO)

Example Prompts

Once connected, try these commands in your AI assistant:

  • "Create a 3D player controller with WASD movement"
  • "Add a rotating cube to the scene with a red material"
  • "Create a simple platformer level with obstacles"
  • "Generate a shader that creates a holographic effect"
  • "List all GameObjects in the current scene"

Documentation

For complete documentation, troubleshooting, and advanced usage:

📖 Full Documentation


Requirements

  • Python: 3.10 or newer
  • Unity Editor: 2021.3 LTS or newer
  • uv: Python package manager (Installation Guide)

License

MIT License - See LICENSE