Advertise
MCP.so
Sign In

uMCP MCP Server

@mika-f

Repository

Basic information

Category

Other

License

MIT

Transports

stdio

Author

mika-f

About uMCP MCP Server

uMCP is a server implementation of the MCP protocol, designed for working with the AI in Unity.

#mcp#unity3d#mcp-server#modelcontextprotocol

uMCP MCP Server config

No standard config provided

This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.

Repository

uMCP MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is uMCP?

uMCP is a minimalistic and efficient MCP protocol server implementation for connecting AI agents to Unity applications. It communicates directly with MCP clients using the Streamable HTTP protocol without additional language runtimes, making it lightweight and Unity‑native.

How to use uMCP?

Install the CoreFramework package in Unity (2022.3 LTS or newer) via OpenUPM or Git URL. The MCP server starts automatically when the Unity project runs. Then configure your MCP client (e.g., VSCode Agent Mode, Cursor, CLINE) to point to http://localhost:7225/sse or http://localhost:7225/mcp.

Key features of uMCP

  • Safety: prevents AI from executing arbitrary code; only pre‑authorized operations are allowed.
  • Extensible: add custom commands using McpServerToolType and McpServerTool attributes.
  • Direct Streamable HTTP communication without Python, Node.js, or other runtimes.
  • Minimal dependencies – runs entirely inside Unity.

Use cases of uMCP

  • Connect an AI assistant to a live Unity scene for real‑time manipulation.
  • Enable AI agents to query and modify Unity objects during development and testing.
  • Build interactive AI‑powered tools within Unity with minimal overhead.

Frequently asked questions

1

What makes uMCP different from other MCP implementations?

uMCP communicates directly with the MCP client via Streamable HTTP, eliminating the need for Python, Node.js, or other language runtimes for a more efficient and lightweight setup.

2

What are the runtime requirements?

Unity Editor version 2022.3 LTS or newer. The MCP client must support Streamable HTTP (e.g., VSCode Agent Mode, Cursor, CLINE).

3

How do I extend uMCP with custom commands?

Create a class with the `[McpServerToolType]` attribute and add static methods marked with `[McpServerTool]` and `[Description]`. Return an `IToolResult` such as `TextResult`. See the provided example in the README.

4

Which transport protocol does uMCP use?

It uses Streamable HTTP, accessible at endpoints `/sse` and `/mcp` on the default port `7225`.

5

Is uMCP limited to Unity Editor?

Yes, it is designed as a Unity Package and runs inside the Unity Editor. It does not support standalone builds.

Comments

More Other MCP servers

EverArt

modelcontextprotocol

Model Context Protocol Servers

88.1K

Blender

ahujasid

Open-source MCP to use Blender with any LLM

23.6K

Maestro

mobile-dev-inc

Painless E2E Automation for Mobile and Web

14.8K

YOUB

Connect your AI assistant to your own YOUB endurance training account. Read recorded activities with full analysis, planned sessions, race goals, wellness (HRV, sleep, resting HR) and your athletic profile. Create or mov

DeepMark

DeepMark helps teachers deliver rapid, consistent marking with meaningful feedback for every student — in a fraction of the time. What once took a week, now takes one free period.

Advertise