Developer Documentation Get Started Before you begin, get your account, API key, quota, and more. gSquare gSquare APIs allow you to instantly measure and bid roof repairs. Create and monitor estimates. gPro & xPress gPro APIs enable ordering gPro and xPress models and measurements. Create orders, get jobs, create estimates. Webhooks Webhooks APIs allow real-time notifications of events occurring in the GEOSPAN system. Spatial Spatial APIs allow you to fetch GeoJSON feature collections. Concepts Familiarize yourself with geospatial and geoprocessing terms and concepts.