The API is exposed natively. Where you see the curl examples, there is a dropdown to show how to do it in other languages.

  [PFCloud callFunctionInBackground:@"averageStars"
           withParameters:@{@"movie": @"The Matrix"}
           block:^(NSNumber *ratings, NSError *error) {
    if (!error) {
       // ratings is 4.5
    }
  }];

We should probably default to something other than curl or tweak that UI a bit. Thanks for pointing this out.