The great attraction about Parse (and similar SaaS) is that you can save tens of thousands on back-end development costs. Given that the back-end is often the most expensive aspect of a Web app; that head-ache is suddenly poof.
The problem with Parse and most (all) SaaS is that the region, power, memory, bandwidth, scalability, thresholds, alerts and various actions are out of your control.
Same with Shopify. It's a great Saas with comprehensive control over products, orders, inventory, and aesthetics -- but zero control over the machine. So, today's SaaS is not a heck of a lot different than godaddy. They invariably oversell or max-out their machines in order to make money; and you are stuck if you really care about ass-kicking performance. You cannot even buy that level of service.
I would like something AT LEAST as powerful and comprehensive as the AWS console. Most techies know and accept that Heroku and Parse are both hosted on AWS. Who cares. So charge more for the added service, but don't deny access to those critical low-level tools that make a Site and App and the user experience zing. Hint to those Parse employees.
At any rate, in answer to the question:
The Parse API is simple JSON. So you can pump out the data in the same JSON format that a Parse application expects.
You might even be able to utilize their PFObject (iOS). At some point, all that highlevel API goes to a common HTTP request/response. The good thing about REST's generality means common-of-the-shelf; things like http, url, strings, and utf. No funky Orb here.
