A method of generating application program interface (API) mashups is provided. The method may include grouping a plurality of APIs into a plurality of sub-clusters based on at least one keyword for each API of the plurality of APIs. The method may also include identifying a plurality of keyword combinations for the plurality of sub-clusters based on real-world data and two or more keywords for the plurality of sub-clusters. Further, the method may include determining a plurality of possible API mashups including two or more APIs of the plurality of APIs for the plurality of keyword combinations. The method may also include processing the plurality of possible API mashups to generate at least one prioritized API mashup of the plurality of possible API mashups, the at least one prioritized API mashup associated with at least one keyword combination of the plurality of keyword combinations.