The Beaconstac API is used to create users in the Beaconstac store in order to purchase beacons. The API uses JSON for requests and responses. Beaconstac is a network of connected Bluetooth devices that offer personalized marketing campaigns to users. Developers can create engaging beacon campaigns that deliver cards, images, forms, videos, and more. Detailed analytics are available to evaluate clicks, and campaign performance. Beaconstac provides proximity marketing services using Bluetooth beacons.