openapi-mcp-server

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Works with

Claude CodeClaude DesktopCursorVS CodeClineCodex CLIOpenClaw+ any MCP client

Install to Claude Code

This server doesn't publish a one-line install command. Follow the setup in the source repository.

Summary

Connect any HTTP/REST API server using an Open API spec (v3)

README.md

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

Local testing

First run the server

wrangler dev

Then run the mcp inspector:

npx @modelcontextprotocol/inspector

See related servers & alternatives →

Score

0–100

27/ 100

Grade

Popularity2/25

GitHub star count is unavailable.

Maintenance5/20

No recent update date is available.

Completeness2/20

Documented: tags. Missing: install command, license, description, config details.

Trust6/15

Community server with a public source repository.

Security12/20

No declared license. Tool surface not yet analyzed.

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