We have been getting many requests for this feature lately and we are happy to announce that Scalable Vector Graphics (SVG) output is now available for all of our premium account subscriptions and is an essential ingredient for being able to scale QR Codes for any size and medium. SVG is available in our QR Code Generator (Maestro), QR Code API (QRGen), and our Campaign Tracking system.

Links mentioned above
Scalable Vector Graphics (SVG)
QR Code Generator API (QRGen)
QR Code Generator (Maestro)