The quality of your supporting documentation can steer the success or failure of your API. This documentation must include a broad spectrum of information covering many use cases to offer real value, but the trust this builds with developers is a vital factor in continued use.
The KantanMT's REST-based API with JSON responses is designed to aid mid-sized local service providers (LSPs) in delivering KantanMT translation capabilities. KantanMT is a statistical machine translation platform (in contrast to a computer assisted translation service). The big advantage is speed: the service is available instantly, faster than you can say, "qu'est-ce que c'est?"
Deciding what metrics matter depends on the overall strategy goals and business model that aligns with your APIs. This is why defining the business model was one of the first steps in your decision series. Now we need to make sure our evaluation framework matches back up to what we set out to do.