The YANG Development Kit (YDK) is a Software Development Kit that provides API's that are modeled in YANG. The main goal of YDK is to reduce the learning curve of YANG data models by expressing the model semantics in an API and abstracting protocol/encoding details. YDK is composed of a core package that defines services and providers, plus one or more module bundles that are based on YANG models.
Alcatel-Lucent (ProgrammableWeb's parent company) launched a new API consulting and professional services practice to help "customers transform their businesses to take advantage of a changing landscape where APIs have emerged as the language of the information economy," according to the press release. The practice is aimed at those providing network-based services and the "repeatable innovation" model is part of the Creative Commons.