Is it possible to use a windows 10 api in unity

I am making a windows 10 UAP game in unity
and I would like to take advantage of its APIs specifically speech recognition
where do I get started?

@Gohan1 see UnityEngine.Windows.Speech in Unity 5.4 Beta documentation.

Classes:

DictationRecognizer
GrammarRecognizer
KeywordRecognizer
PhraseRecognitionSystem
PhraseRecognizedEventArgs
PhraseRecognizer
SemanticMeaning