The unreal-api-mcp is a free tool designed for AI coding, specifically targeting Unreal Engine developers. It provides accurate and up-to-date API documentation for Unreal Engine C++ without requiring an Unreal Engine installation. By integrating seamlessly with various MCP-compatible AI tools, it enhances coding efficiency by reducing token usage and preventing common errors such as hallucinated signatures and deprecated API calls. The server automatically detects Unreal Engine version and downloads the appropriate database, ensuring quick access to relevant information.

Key features include fast query responses for function signatures, include paths, class references, and deprecation warnings. The tool supports a comprehensive range of Unreal Engine modules and is built to process requests in milliseconds, making it ideal for developers who need reliable and structured answers while coding. With weekly updates to its database, unreal-api-mcp ensures that users always have access to the latest Unreal Engine information.