Does Santa Claus have a magic key?

Obviously if Santa doesn't exist, he doesn't have or need any keys. You have to make up your own mind on that. In the legend of Santa Claus, I would still say that he doesn't need a magic key; he supposedly enters people's houses by way of the chimney, and chimneys are not locked, and therefore do not need keys. For the houses and apartments that do not have chimneys, Santa definitely would possess magical methods of entering.