Abstract: A system is described to manage a plurality of managed devices. The system may have an Application Program Interface (API), a messaging platform, an application manager, and a payments manager. The Application Program Interface (API) may be configured to communicate with a user computer to request use of one or more of the managed devices. The messaging platform may be configured to send and receive messages to the managed devices. The messaging platform operates using a publish/subscribe protocol and the messages control installation of applications requested by the user computer, and allow communications between managed devices based on topics. The application manager, in communication with the messaging platform, deploys applications on the managed devices. The payments manager processes payment for the use of the one or more managed devices.