Audi TT 2003 lost 2 sets of key fobs, what programmer?

Lost 2 sets of key fobs of my AUDI TT 2003 and I want to have the tools to program the keys and the remote. Which key programmer?

Experience for sharing:

Xhorse iscancar supervag 3.0 (red tool) will both extract the SKC code and add the keys.

If you want a more up to date tool then Xhorse Iscancar MM-007 (Grey tool) is the one to get.