OpenMCP
OpenMCP makes it easy to turn any OpenAPI specification into an MCP server, and to remix many MCP servers into a single server with just the tools you need. It supports stdio and sse transports, and works with all of the major chat clients.
To get started, run this command:
npx -y openmcp install <url or file path to openapi specification> --client <chat client>
For example, to add the ability to query the weather from Cursor, you could run this: