Question 1

How do I install the Unity MCP plugin?

Accepted Answer

The Unity MCP plugin is installed via the Unity Package Manager using a Git URL. Open Unity Editor (2021.3 LTS or later), go to Window > Package Manager, click the + button and select Add package from git URL, paste the Unity-MCP package URL and click Add.

Question 2

Which operating systems are supported for installation?

Accepted Answer

The Unity MCP plugin works on Windows, macOS, and Linux — anywhere Unity Editor runs. The remote MCP endpoint at ai-game.dev/mcp is platform-independent since AI clients connect over HTTP.

Question 3

Do I need authentication for local development?

Accepted Answer

No. When running the MCP server locally via the Unity plugin's built-in server, authentication is disabled by default. Tokens are only required when connecting through the remote endpoint at ai-game.dev/mcp.

Question 4

What is the minimum Unity version required?

Accepted Answer

The Unity MCP plugin requires Unity 2021.3 LTS or later. We recommend using the latest LTS release for the best compatibility and stability.

Question 5

Is my Unity project code sent to remote servers?

Accepted Answer

No. The architecture is local-first. In local mode, all communication happens on localhost. In remote mode, the endpoint acts as a relay forwarding MCP protocol messages without inspecting, storing, or logging tool call payloads — only metadata.

Frequently Asked Questions

Installation

Authentication

Unity Versions

Traffic Stats

Privacy

Installation

How do I install the Unity MCP plugin?

My AI client cannot connect to Unity. What should I do?

Which operating systems are supported for installation?

Authentication

How do I get an authentication token?

My authentication token is not working. What should I check?

Do I need authentication for local development?

Unity Versions

What is the minimum Unity version required?

Which render pipelines are supported?

Traffic Stats

What does "tool calls" mean on the Dashboard?

What does "active sessions" mean?

Privacy

What data does the MCP server collect?

Is my Unity project code sent to remote servers?

How long is operational data retained?