get quote for room type

hallo,
not being so skilled to programming, I am simply trying the interface. and get quote gives always error (400not found err 600/901...)

are you going to put something to test in API reference that returns the quote of a single room-type?
what is gets-quote API for?

I need to know in order to ask proper functionalities to website builder. and I could not figure out that working on room-types is useless

thx