openapi-mcp-serverAllow AI to wade through complex OpenAPIs using Simple Language

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Reviewed by Daniel Nikulshyn·Updated July 2026

Overview

The openapi-mcp-server is 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, requests a summary of that in simple language, and determines which endpoints you need, and checks out how exactly they work (again, in simple language). Features include getting an overview of any OpenAPI specification, retrieving details about specific API operations, and support for both JSON and YAML formats. The server has been tested with Claude Desktop and Cursor. Installation instructions for other clients include using the MCP URL: https://openapi-mcp.openapisearch.com/mcp.

Key features

OpenAPI specification overview
Details about specific API operations
Simple language support
JSON and YAML format support

Pricing

Model: Free
Category: MCP Servers
Rating: No reviews yet

Use cases

AI-powered API exploration

Use the OpenAPI MCP Server to enable AI models like Claude or Cursor to explore and understand complex OpenAPI specifications.

Simplifying API documentation

Utilize the server to generate simple language summaries of OpenAPI specifications, making it easier for developers to understand and work with APIs.

Pros & Cons

Pros

Simplifies complex OpenAPI specifications for AI navigation
Supports both JSON and YAML formats
Tested with popular AI clients like Claude Desktop and Cursor

Cons

Limited information on scalability and performance
Dependent on oapis.org for functionality

Reviews

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Q&A

How do I install the openapi-mcp-server for local testing?

To install for local testing, first run the server with wrangler dev, then run the mcp inspector using npx @modelcontextprotocol/inspector.

Asked by Zelda Brandt · Jul 28, 2025

What is the purpose of the openapi-mcp-server?

The openapi-mcp-server enables searching and exploring OpenAPI specifications through oapis.org, allowing AI to navigate complex OpenAPIs using simple language.

Asked by Bilal Choudhury · Jul 16, 2025

Can I use this with other AI clients?

Yes, you can use the openapi-mcp-server with other clients by using the MCP URL: https://openapi-mcp.openapisearch.com/mcp. It has been tested with Claude Desktop and Cursor.

Asked by Malik Rasheed · Jul 11, 2025

What formats are supported?

The openapi-mcp-server supports both JSON and YAML formats.

Asked by Chioma Nwosu · Jul 9, 2025