What OpenAPI versions does Mcpgen support?

Mcpgen supports OpenAPI specifications in YAML or JSON format, versions 3.1 and 3.0.

How do I install Mcpgen?

You can install Mcpgen using the go install command: `go install github.com/lyeslabs/mcpgen/cmd/mcpgen@latest`. Ensure your `$HOME/go/bin` directory is in your PATH.

What kind of code does Mcpgen generate?

Mcpgen generates well-structured, idiomatic Go code, including server initialization, tool registration, handler skeletons, JSON schemas for inputs, and markdown-based response templates.

Can Mcpgen generate an HTTP client?

Yes, Mcpgen can optionally generate a Go HTTP client and corresponding Go types based on your OpenAPI schema, simplifying the implementation logic within the generated MCP handlers. Use the `--includes=httpclient,types` flag.

Mcpgen

Name: Mcpgen
Author: lyeslabs

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Generates production-ready Model Context Protocol (MCP) server boilerplate from OpenAPI specifications, enabling exposure of existing APIs as powerful tools for AI agents.

Mcpgen is a command-line tool that bridges the gap between OpenAPI specifications and MCP server implementation. It automates the generation of Go boilerplate code, including server initialization, tool registration, and handler skeletons. By translating OpenAPI schemas into JSON Schemas and creating detailed markdown response templates, Mcpgen simplifies the process of exposing APIs as AI agent tools, enabling developers to focus on integrating their core logic.

主要功能

01Generates comprehensive MCP server boilerplate from OpenAPI specifications.

02Optionally generates a Go HTTP client and corresponding Go types for simplified implementation.

036 GitHub stars

04Automatically translates OpenAPI schemas into JSON Schemas for tool inputs and markdown-based response templates.

05Supports complex OpenAPI schema constructs, including arrays, nested structures, and type unions.

06Produces well-structured, idiomatic Go code with embedded schemas and prompts.

使用案例

01Exposing existing APIs as tools for AI agents.

02Rapidly prototyping MCP servers based on OpenAPI definitions.

03Automating the creation of JSON Schemas and markdown templates for AI agent interaction.