FAQ
Is it free?
Section titled “Is it free?”Yes. nanora-unity-mcp is open source under the MIT license. It is also on BOOTH for free; the paid “support” variant there has the same contents.
Which Unity versions are supported?
Section titled “Which Unity versions are supported?”Unity 2021.3 LTS or later, including Unity 6.
Which AI clients work?
Section titled “Which AI clients work?”Any MCP client that speaks Streamable HTTP or SSE. It is tested with Claude Code, Codex, Cursor and Claude Desktop. See Connect any MCP client.
Do I need Node.js or Python?
Section titled “Do I need Node.js or Python?”No. The server is C# that runs inside the Unity Editor. Node.js is used only by the optional transport checks.
Does it send my project anywhere?
Section titled “Does it send my project anywhere?”The server only listens on 127.0.0.1. What your AI client sends to its own provider is up to that client. See Security.
How many tools are there?
Section titled “How many tools are there?”57 tools in 18 categories, plus three meta tools for SuperSave mode. They are all in the tool reference.
Can the AI test what it built?
Section titled “Can the AI test what it built?”Yes — that is the point of the testing tools. See Let the AI test your game.
Does it work in a built player?
Section titled “Does it work in a built player?”No. It is an Editor tool; the server runs in the Unity Editor.
How is it different from other Unity MCP servers?
Section titled “How is it different from other Unity MCP servers?”The main difference is what you need besides Unity. See the comparison.
Where do I ask questions?
Section titled “Where do I ask questions?”GitHub Issues. Japanese is fine. Help is best effort; it is maintained by one person.