OpenAPI MCP Server

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

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

Installation

First run the server

wrangler dev

Then run the mcp inspector:

npx @modelcontextprotocol/inspector

Config for your environment

Replace {MCP_ENDPOINT_URL} with this MCP’s endpoint URL (from its repo or docs above). No API key — you connect directly.

Tool

Config file: ~/.cursor/mcp.json

{
  "mcpServers": {
    "mcp-server": {
      "url": "{MCP_ENDPOINT_URL}"
    }
  }
}

Paste into mcpServers in the config file. Restart Cursor after saving.