The Bronto PHP Library by Bronto allows developers to integrate the Bronto API into their PHP applications. This library comes with no official support, but developers can ask questions on the Dev Q&A Forum or contact their Account Manager for more assistance.
Venueseen, a visual marketing and social media management solutions company, has just announced the release of the Venueseen Campaigns API allowing developers access to a powerful Instagram driven marketing tool.
eZ-Xpo, virtual tradeshow management platform, announced the release of the eZ-Xpo Open Event Management API. The API integrates with third party applications such as Eventbrite, Cvent, Etouches, Amiando, and many more. Integration with the API allows third party apps to include management planning, registration, and promotion for events.