Creately is a visual collaboration platform used by project teams to communicate more effectively. With Creately's easy to use interface and Shared Projects, everyone on your design, development and business teams can collaborate on software designs, wireframes, business & strategy diagrams easily.
The Creately Developer wiki provides information for developers who are interested in utilising Creately's capabilities outside of the Creately environment.
Online diagramming service Creately opened its Creately API to the public this month, and with some surprisingly innovative features. While providing obvious features to make its service available to outside developers, and several "above and beyond" features, such as easy embedding of diagrams, Creately has done something fairly unique: open up its own, web-based file format for other developers to use.