By way of illustration, various example user devices 102 are shown in communication with the service hosts 106-110, including a desktop computer, laptop, and a personal digital assistant (PDA). In general, the user devices 102 can be any computing device such as a desktop, laptop or tablet computer, personal computer, wearable computer, server, PDA, hybrid PDA/mobile phone, mobile phone, electronic book reader, set-top box, voice command device, camera, digital media player, and the like. The service hosts 106-110 may provide the user computing devices 102 with one or more user interfaces, command-line interfaces (CLI), application programing interfaces (API), and/or other programmatic interfaces for invoking service calls, tracking service requests, and/or viewing other logging or monitoring information related to the service. Although one or more embodiments may be described herein as invoking service calls, it should be appreciated that such embodiments may, additionally or alternatively, use any APIs or other programmatic interfaces.