I am trying to get into Kinopio`s API and I really struggled with creating a card with only spaceId and name (i.e. without coordinates).
I was all the time getting error 500 . Finally, I found the issue: the space was empty and thus Kinopio did not know the position of the last card.
Expected behavior: If a space is empty and there are no coordinates in Body JSON, use some default ones :).