When you are creating new software today, more often than not you will use API’s. Users choosing between different API’s would probably look at functionality but also accessibility and ease of use. It would therefore seem motivated for API providers to create usable and accessible API’s.This thesis is about the things that make an API more usable, and then those things are used in practice to increase the usability of CloudMe’s API. CloudMe’s core API is documented to increase usability and a wrapper for the API is developed to allow people more ways to use CloudMe’s service. The APIwrapper is created in Java and was developed thoroughly with regards to usability.