Creating added value, innovative applications and services in the web is hindered by the prevailing different formats and models of information retrieved by the various Cloud-based Services (CBS). Additionally, CBS tend to change their Application Programming Interface (API) versions very often, not sufficiently helping the interested enterprises with their adoption as they need to be up-to-date and always functional. The API Builder is a communitybased platform that aims to facilitate developers in adopting a Graph API that unifies the experience of multiple cloud-based services APIs and personal cloudlets, building and maintaining their software applications easily, despite any changes made in the CBS APIs.