The idea of paying for your morning coffee with stablecoins used to sound like a crypto fever dream. Now it’s a $759 million-per-month business, and Coinbase’s Base network is quietly becoming the infrastructure layer that makes it work.
As of July 2026, Base accounts for approximately 19% of all tracked crypto card spending volume, making it one of the largest blockchain networks powering stablecoin-linked payment cards. That puts it in a dead heat with Solana, also at 19%, while Optimism leads the pack at 29%.
The numbers behind the growth
Monthly on-chain transaction volumes for crypto card programs reached around $759 million in July 2026, with nearly 9 million individual purchases recorded. Annualized, that puts the stablecoin card market in the neighborhood of $18 billion.
Visa has been the single most important accelerator of this trend. On April 29, 2026, the payments giant expanded its stablecoin settlement pilot to include Base, bringing the total number of supported blockchains to nine. After that expansion, the pilot reached a $7 billion annualized run rate.
