OpenAPI to MCP Server Generator

Example Use Cases

• 1

  Interact with existing REST APIs through a standardized MCP interface.

• 2

  Automatically generated input validation and response understanding via JSON schemas and markdown templates.

• 3

  A developer-friendly scaffold to implement backend API integrations efficiently.

Description

mcpgen is a command-line tool that reads OpenAPI 3.0 specifications and automatically generates idiomatic Go code for MCP servers, including input schemas, response templates, and handler skeletons. It supports complex schema constructs and multiple content types, optionally generating HTTP clients and types to simplify backend integration. This enables developers to quickly expose existing APIs as powerful tools for AI agents, focusing on core logic rather than boilerplate.