OpenAPI to MCP Server Converter

What is OpenAPI to MCP Server Converter?

A tool for automatically converting OpenAPI 3.0 specifications into Model Context Protocol (MCP) server instances. Designed for developers who want to expose existing REST APIs as MCP-compatible tools with minimal manual coding.

How to use OpenAPI to MCP Server Converter?

Install via npm (openapi-mcp-converter), parse your OpenAPI specification, create an OpenApiMCPSeverConverter instance with optional security config, then connect the resulting server to one of three supported transports (stdio, SSE, or Streamable HTTP).

Key features of OpenAPI to MCP Server Converter

• Automated parsing of OpenAPI 3.0 specifications
• TypeScript‑based strong type validation
• Automatic tool‑call parameter mapping via request proxy
• Support for stdio, SSE, and Streamable HTTP transports
• Configurable timeout and security (API key) options

Use cases of OpenAPI to MCP Server Converter

• Converting existing REST APIs defined by OpenAPI specs into MCP‑compatible tools
• Exposing OpenAPI‑described services through different MCP transport protocols

FAQ from OpenAPI to MCP Server Converter

What OpenAPI version does it support?

OpenAPI 3.0 specifications.

What are the runtime requirements?

Node.js 18+ and TypeScript 5.x.

Which transports does it support?

Stdio, SSE, and Streamable HTTP.

How do I configure authentication?

Pass a security object in the converter options—for example { apiKey: 'my-api-key' }.

Is the generated server a full MCP server?

Yes. The getServer() method returns a standard MCP server instance that can be connected to any MCP‑SDK transport.