From their site: The Friendster Developer Platform consists of a set of APIs to Friendster data and seamless integration points within the Friendster web site to create compelling widget applications for Friendsters over 50 million users. The APIs provides access to Friendster data through a rich REST-style interface. These resources can be accessed using an API key and a shared secret that is issued to every widget.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.