Streetline is a company focused on improving parking in cities around the world. Streetline brings together aspects of parking management technology in one integrated system, street-level sensors, mobile apps, analytics and system management software. The Streetline ParkerData API enables users to build their own parking visualizations on mobile and web apps, or in-car navigation.The visualizations can display an availability count, as well as the total capacity for the facility or collection of spaces. The API uses REST calls and returns XML or JSON. An account is required with service.