As disclosed herein a method, executed by a computer, includes receiving a deployed computer application to be staged, where the deployed computer application includes monitored items corresponding to a downloaded code package, verifying the integrity of the downloaded code package included in the deployed computer application, and staging the deployed computer application to provide a staged computer application. The method further includes monitoring the staged computer application for usage of monitored items corresponding to the downloaded code package and billing a customer according to usage of the monitored items. A computer system, and a computer program product corresponding to the method are also disclosed herein.