The HotspotSystem.com API allows to implement hotspot features into mobile applications and to bill for internet usage. Protocols available in JSON and XML with SSL, basic HTTP, and Api Key as authentication methods. HotspotSystem provides hotspot management and billing ability to businesses who offer internet to their customers.
Eight APIs have been added to the ProgrammableWeb directory in categories includings Recognition, Analytics, Wi-Fi, and Home Automation. Also new are SDKs for Mixpanel mobile analytics and Untappd, a social applicaiton for beer. Here's a summary of the new additions to the directory.