PetHub Open API v1.0 - the struggle is always putting out a good first version of.. well.. anything. It's no different for putting out a solid API and so we did a lot of reading, learned from other developers over the years about what worked and what didn't, and landed on a solid approach that will, of course, change for the better. Until then, we have our v1 and we look forward to -- with your help -- creating an even better v2. It only works if you provide us with your thoughtful, critical feedback.