RedotPay predicts that annual card payments funded by stablecoins (cryptocurrencies designed to track a stable asset) will grow to about $50 billion by 2028. Monthly transaction volume for crypto cards reached a peak of $1.03 billion in July 2026, with USDC and USDT representing most of the activity. The market is concentrated among RedotPay, Ether.fi and KAST, while reliance on partly self-reported data leaves uncertainty around the forecast, The Crypto Times reported.