On the VG Tech blog, they've posted a follow-up to their previous post about using the Zend Framework 2 to generate Swagger documentation for an API. In this new post (part 2) they focus more on Swagger UI.

This blog post on Swagger UI is a follow-up on my recent post on Swagger annotation parsing in ZF2. If you’re not already set up with Swagger annotation parsing in you ZF2 app I recommend that you read part 1 first. In the last post we got ZF2 set up with annotation parsing and everything, and the only thing missing was Swagger UI for the neat presentation. I skipped that previously but today we’ll add the last piece.

This second part of the series uses a custom package to create a "SwaggerUI" module. There's a few file updates that need to be made to the configuration, but the rest is handled for you. In the end, the result will look something like this, showing endpoints and allow you to interact with the API directly through forms and sample calls.