The present disclosure provides systems and methods for determining semantic location information. In particular, one or more computing devices can receive, from an application program executing on at least one of the one or more computing devices, an application programming interface (API) call requesting semantic information about a location of at least one of the one or more computing devices. Responsive to receiving the API call, the one or more computing devices can determine semantic information for the location and can return the semantic information for the location to the application program via the API. The semantic information for the location can comprise data semantically identifying the location and indicating whether a user associated with the one or more computing devices is stationary at the location or in transit from the location.