@cleecanth First of all: welcome to the forums 
. I’ve moved this into the feature requests category so it can get voted on (since no, there unfortunately currently isn’t a way to access these features through the APIs).
@stevekwak I don’t think that it should get seen as a duplicate, since the linked request only refers to enabling or disabling responsive resize, while this request – at least as I understand it (and why I gave my vote for this request) – asks for the ability to manipulate all the responsive resize settings (also the manual ones) programmatically…