A system of controlling one or more building control devices. The system may incorporate receiving from a third party a request for access to a user account at a manufacturer of building control devices, where the user account may be associated with one or more of the user's building control devices from the manufacturer. The third party may be a demand response provider, an aggregator of building control devices, or a different entity. The building control devices may be connected to a network. The system may be implemented over one or more networks with a server, an application programming interface (API), and/or a service bus.