[mctx]

Are you using any packages with Flask for API code? I quite like Django Rest Framework for JSON APIs, I just ignore the parts of Django I don't need.

[Goopplesoft]

Flask Restful by Twilio is pretty good (http://flask-restful.readthedocs.org/en/latest/) some wrong assumption are made by the app but customizing it is fairly easy.

[leetrout]

Care to share on the assumptions that didn't work for you?

I ask because I hit a few weak spots in the docs and a maintainer that wasn't really interested in understanding my pull requests last year.