OpenAPI Schema MCP Server is an MCP server that exposes OpenAPI schema information to LLMs and tools. It lets you load any OpenAPI schema file (JSON or YAML) from the command line and then interrogate the schema with a suite of specialized tools. Users can list endpoints and their HTTP methods with summaries, inspect a specific endpoint in detail (parameters, request bodies, and responses), and fetch request body schemas. It can retrieve response schemas for particular status codes and obtain path parameters. It can also list and fetch component definitions (schemas, parameters, responses) and their examples, list security schemes, and get examples tied to components or endpoints. A search tool lets you scan paths, operations, and schemas across the entire specification. For readability, responses can be returned in YAML format. The server is designed to work with Claude Desktop and Claude Code workflows, enabling seamless integration into AI-assisted API exploration while keeping the OpenAPI spec offloaded from large contexts.