In which case the post title is misleading and should be edited. I'm flagging this.
So this is about web APIs? I dislike that the broad term "API" has started to be used as shorthand for "HTTP API" (and probably REST-ish HTTP APIs specifically). It wastes people's time trying to figure out if something is of interest to them. Not everyone in tech is building web apps.
For more context, this tool can generate an MCP Server from an OpenAPI/Swagger file that describes a REST API. This does not include SOAP APIs, GraphQL, or other APIs that use the HTTP protocol.
HTTP API is the correct phrase.