janwilmake/openapi-mcp-server
Connect any HTTP/REST API server using an Open API spec (v3)
Add to Claude Desktop config.json
{
"mcpServers": {
"janwilmake-openapi-mcp-server": {
"command": "node",
"args": [
"~/.mcp/openapi-mcp-server/index.js"
]
}
}
}Get the source and run locally
git clone https://github.com/janwilmake/openapi-mcp-server.git ~/.mcp/openapi-mcp-server
cd ~/.mcp/openapi-mcp-serverAbout this MCP server
OpenAPI MCP Server
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
For other clients, use MCP URL: https://openapi-mcp.openapisearch.com/mcp
Local testing
First run the server
wrangler devThen run the mcp inspector:
npx @modelcontextprotocol/inspectorSimilar MCP servers
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