A method and system for providing location data of a mobile device using a web service is provided. In one embodiment, a method for providing location data of a mobile device using a web service includes receiving location data associated with a mobile device, the mobile device operable to transmit a wireless signal including corresponding location data. A location request is received from a client using a web service. The location request comprising information identifying the mobile device and the client. A response to the location request is automatically communicated based on the location data associated with the mobile device.