OpenAPI MCP Server

![janwilmake/openapi-mcp-server context](https://uithub.com/janwilmake/openapi-mcp-server?excludePathPatterns=.yaml)

A Model Context Protocol (MCP) server for Claude/Cursor that enables searching and exploring OpenAPI specifications through oapis.org.

Demo: https://x.com/janwilmake/status/1903497808134496583

HN Thread: https://news.ycombinator.com/item?id=43447278

OpenAPISearch: https://github.com/janwilmake/openapisearch

OAPIS: https://github.com/janwilmake/oapis

The MCP works by applying a 3 step process:

It figures out the openapi identifier you need

It requests a summary of that in simple language

It determines which endpoints you need, and checks out how exactly they work (again, in simple language)

Features

Get an overview of any OpenAPI specification

Retrieve details about specific API operations

Support for both JSON and YAML formats

Tested with Claude Desktop and Cursor

Installation

![Install OpenAPI MCP Server](https://installthismcp.com/OpenAPI%20MCP%20Server?url=https%3A%2F%2Fopenapi-mcp.openapisearch.com%2Fmcp)

For other clients, use MCP URL: https://openapi-mcp.openapisearch.com/mcp

First run the server

wrangler dev

Then run the mcp inspector:

npx @modelcontextprotocol/inspector