openapi-mcp-server
Allow AI to wade through complex OpenAPIs using Simple Language
The OpenAPI MCP Server is a Model Context Protocol server that allows AI assistants like Claude and Cursor to search, explore, and understand OpenAPI specifications using simple language. Instead of navigating complex API documentation directly, it applies a three-step process: identifying the relevant OpenAPI specification, requesting a plain-language summary, and retrieving details about specific endpoints. The server integrates with oapis.org to provide AI assistants with structured access to API documentation in both JSON and YAML formats.
Key Features
Use Cases
- 01Enable AI assistants to understand and navigate unfamiliar APIs without manual documentation reading
- 02Automatically discover relevant API endpoints when building integrations
- 03Get plain-language explanations of complex API specifications during development
- 04Integrate API documentation lookup directly into AI-assisted coding workflows
- 05Explore third-party APIs through conversational queries in Claude or Cursor
- 06Rapidly prototype API integrations by asking AI about endpoint parameters and responses
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openapi-mcp-server — FAQ
What is the OpenAPI MCP Server?+
The OpenAPI MCP Server is a Model Context Protocol server that enables AI assistants to search and understand OpenAPI specifications using natural language. It translates complex API documentation into simple, conversational summaries that AI tools can work with.
How do I install the OpenAPI MCP Server?+
You can connect to the hosted version using the MCP URL https://openapi-mcp.openapisearch.com/mcp in your MCP client configuration. For local development, clone the repository and run it with Wrangler dev.
Which AI clients work with this MCP server?+
The OpenAPI MCP Server has been tested with Claude Desktop and Cursor. It should work with any client that supports the Model Context Protocol.
Do I need an API key to use this server?+
The README does not mention API key requirements for the hosted MCP URL. Local development uses Wrangler and the MCP Inspector for testing.
Is the OpenAPI MCP Server free to use?+
The project is open source and available on GitHub. The hosted MCP URL appears to be freely accessible without mentioned costs.
What OpenAPI formats does it support?+
The server supports both JSON and YAML OpenAPI specification formats, allowing it to work with a wide range of API documentation.
How do I install openapi-mcp-server?+
Open the source repository on GitHub and follow its README. openapi-mcp-server is a mcp server — MCP Agents Market links you directly to the official repo.
Is openapi-mcp-server free?+
openapi-mcp-server is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.