Bundling application programming interfaces is provided. Related application programming interfaces within a set of application programming interfaces and their corresponding dependent application programming interfaces are combined with related composite application programming interfaces within a set of composite application programming interfaces and their corresponding dependent application programming interfaces to generate a set of application programming interface bundles. The computer prunes the set of application programming interface bundles based on a determined application programming interface budget pattern that corresponds to a selected cluster of application programming interface consumers. The computer prices the pruned set of application programming interface bundles based on an application programming interface bundle pricing model.