Eventsforce

The Eventsforce event management API employs standard HTTP GET requests and authenticates with an API Key and standard HTTP Authentication. API Keys are generated from within each Eventsforce account holder's administration interface. Use the Eventsforce API to manage every aspect of your event like creating a website, handling registration, communicating with attendees, and creating event badges. The API's documentation is hosted on Apiary and includes extensive documentation and example data for users to query.