openapi-mcp-server

# OpenAPI MCP Server [](https://smithery.ai/server/@janwilmake/openapi-mcp-server) [](https://uithub.com/janwilmake/openapi-mcp-server?excludePathPatterns=README-v1.md&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 : 1. It figures out the openapi identifier you need 2. It requests a summary of that in simple language 3. It determines which endpoints you need, and checks out how exactly they work (again, in simple language) > [!IMPORTANT] > OpenAPI MCP has found a [new owner](https://github.com/janwilmake) and has been migrated from v1.2 to v2, which works different to the previous version. You can still access any version prior to v2.0.0 and their README is [here](README-v1.md) > > OpenAPI MCP v2 is a Work In Progress and focuses on exploration and providing context about APIs. It **does not** allow executing the endpoints as tools directly, as authentication isn't a solved problem with MCP yet. However, it's great for codegen! > > Expect bugs. Open To Contributers, [DM](https://x.com/janwilmake) ## 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 | Summary | Prompt it | |---------|-----------| | Basic understanding of the OpenAPI MCP Server | [](https://lmpify.com?q=https%3A%2F%2Fuuithub.com%2Fjanwilmake%2Fopenapi-mcp-server%2Ftree%2Fmain%3FpathPatterns%3DREADME.md%26pathPatterns%3Dopenapi-mcp.drawio.png%0A%0ACan%20you%20explain%20what%20OpenAPI%20MCP%20Server%20does%20and%20how%20I%20can%20use%20it%20with%20Claude%20Desktop%3F) | | Core implementation details of the MCP server | [](https://lmpify.com?q=https%3A%2F%2Fuuithub.com%2Fjanwilmake%2Fopenapi-mcp-server%2Ftree%2Fmain%3FpathPatterns%3Dindex.js%26pathPatterns%3Dpackage.json%0A%0AHow%20does%20the%20OpenAPI%20MCP%20Server%20handle%20API%20requests%3F%20Can%20you%20explain%20the%20tool%20handlers%3F) | | How to extend or contribute to the project | [](https://lmpify.com?q=https%3A%2F%2Fuuithub.com%2Fjanwilmake%2Fopenapi-mcp-server%2Ftree%2Fmain%3FpathPatterns%3Dindex.js%26pathPatterns%3Dpackage.json%26pathPatterns%3DREADME.md%0A%0AI'd%20like%20to%20add%20support%20for%20a%20new%20feature%20to%20the%20OpenAPI%20MCP%20Server.%20Where%20should%20I%20start%3F) | ## Installation ### Installing via Smithery To install openapi-mcp-server for Claude Desktop automatically via [Smithery](https://smithery.ai/server/@janwilmake/openapi-mcp-server): ```bash npx -y @smithery/cli install @janwilmake/openapi-mcp-server --client claude ``` ### Installing via npx Run and follow instructions: ```bash npx openapi-mcp-server@latest init ``` ## Usage in Claude Once installed, you can ask Claude to: - "Find information about the Stripe API" - "Explain how to use the GitHub API's repository endpoints" Claude will use the MCP server to: 1. First get an overview of the requested API 2. Then retrieve specific operation details as needed ## Requirements - Node.js >= 16.17.0 - Claude Desktop, Cursor, or any other MCP client. ## License MIT