Officially supported by Adobe and Facebook, the new ActionScript 3.0 Client Library for Facebook Platform is a free and open source programming language library. It is expected to be a complete resource supporting all Facebook application programming interfaces (APIs), including Facebook Connect, according to the companies.
Documentation, example applications and code are now available for developers to start building applications with Adobe Flash and Flex software, and Facebook Platform. The ActionScript 3.0 Client Library for Facebook Platform is available immediately as a free download along with developer documentation and tutorials.