A few months ago I released iodoctor, a GUI for creating and editing I/O Docs configuration files. You can use it as a hosted service, or you can snag the code and use/modify it how you see fit. There might be a few bugs still, so check out the issues page on github before you go too deep.
Last October, I was hanging out with Amit, an awesome evangelist from Mashery, at a hackday for The Combine. We were kicking around a few ideas for hacks, and I expressed my desire to have a GUI for creating and editing. I had implemented a handful of endpoints in I/O Docs for SendGrid, and by the time I was done, I had written a few thousand lines of JSON by hand. Needless to say, that doesn’t scale.
Perhaps support exporting to different schemas, such as the Google API Discovery schema.
Interactive docs are good, but static documentation with additional information is also valuable, for a lot of reasons.