There are some tools (e.g. mashape) that only support older versions of swagger. Are there any utilities for downgrading Swagger Version 2.0 JSON specs into the older 1.2 version?
I would be OK with a tool that does the downgrade as a best-effort and drops features that are not supported in the older version.
You can use restlet studio to convert between swagger 1.2, swagger 2.0 and RAML.
You can try it here : http://studio.restlet.com