unity-api-mcp

Overview

Unity-api-mcp is an MCP server designed to help AI agents working with Unity development. It provides instant API lookups instead of expensive source file reads, saving tokens, context, and preventing hallucinations. The server supports Unity 2022 LTS, 2023, and Unity 6 with separate databases for each version, ensuring accurate version-specific information. It's particularly useful for AI-assisted Unity development workflows where accurate API documentation is critical.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• search_unity_api

  Find Unity APIs by keyword

  Try:search for Tilemap SetTileTry:find async load scene methods
• get_method_signature

  Get exact method signatures with all overloads

  Try:get signature for UnityEngine.Physics.RaycastTry:show all overloads for Object.Instantiate
• get_namespace

  Resolve C# using directives for Unity types

  Try:what namespace is SceneManager inTry:get using directive for InputAction
• get_class_reference

  Get full class reference including all members

  Try:show me all methods in InputActionTry:what properties does MonoBehaviour have
• get_deprecation_warnings

  Check if a Unity API is deprecated or obsolete

  Try:is WWW deprecatedTry:what warnings are associated with FindObjectOfType

Comparable tools

Installation

{
  "mcpServers": {
    "unity-api": {
      "command": "uvx",
      "args": ["unity-api-mcp"],
      "env": {
        "UNITY_VERSION": "2022"
      }
    }
  }
}

FAQ

What Unity versions are supported?

The server supports Unity 2022 LTS, 2023, and Unity 6 with separate databases for each version.

Does this cover third-party assets like DOTween?

No, third-party assets (DOTween, VContainer, Newtonsoft.Json) are not indexed. For those, rely on project source.

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