Various embodiments provide a model through which service providers can describe offered services using a standardized format. In one or more embodiments, the standardized format is declarative and enables service providers to describe their associated services in a standardized way. In at least some embodiments, the standardized format includes a set of common service properties that are shared across multiple different services. Additionally, service specific properties can be described in addition to the common service properties. In one or more embodiments, existing services can be extended by including, in the standardized format, a description of an extension. In one or more other embodiments, new services can be added for consumption by simply including a description of the new service using the standardized format.