At Miso, we have been building out a public platform for developers around our service. This means building out many public RESTful endpoints. We have already hosted the first of many developer contests and the submissions were excellent. We ran into a number of challenges while building our public API and our latest post details our frustrations with to_json and why we would never use it to build a clean JSON API. Check out our post and we would love to hear about other people’s experiences.