1. A processor-implemented application programming interface (API) call abstraction method, comprising operations of: obtaining source code for an application; parsing, via a processor, the obtained source code to identify instructions in the source code; identifying an application programming interface call in the source code based on parsing the obtained source code, the application programming interface call including an input string; determining that the identified API call requires a pre-registered bundle to replace the input string, wherein the API is provided by a hosting server; querying a database for the pre-registered bundle using the input string; compiling the source code upon replacing the input string in the application programming interface call with a bundle identification; obtaining the application based on compiling the source code; and providing the compiled application for a user, wherein each of the operations is performed by an app server.