OpenAPI to MCP Server Converter

@zxypro1

About OpenAPI to MCP Server Converter

A tool for automatically converting OpenAPI into Model Context Protocol (MCP) Server instance

#nodejs #javascript #node #typescript #mcp #openapi #openapi-spec #openapi-specification #llm #llm-tools #model-context-protocol #mcp-server

Config

No standard config provided

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Repository

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Overview

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.

Frequently asked questions

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.

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