OpenAPI MCP Server
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
For other clients, use MCP URL: https://openapi-mcp.openapisearch.com/mcp
Related MCP server: 302AI Sandbox MCP Server
Local testing
First run the server
Then run the mcp inspector:
