Our story
More ways to accept payments
CardX by Stax is part of the Stax Payments platform, a complete suite of payment tools for businesses of every size. From in-person hardware to online checkout, embedded payments, and mobile readers, Stax Payments gives you the flexibility to accept payments however your customers prefer.
Jonathan Razi, Founder
As the founder of CardX, Jonathan’s direction and thought-leadership have established CardX as the foremost name in its field. A noted expert, Jonathan authored the CardX brief in U.S. Supreme Court.
With 10 years of experience in the payments and surcharging space, Jonathan previously served as CardX CEO and led product roadmaps and innovation at Stax as Chief Product Officer.
Jonathan earned a J.D. from Harvard Law School and a B.A. from the University of Chicago.