Mastercard has partnered with MoonPay to introduce global stablecoin cards, enabling cryptocurrency payments at over 150 million merchants worldwide. Cryptocurrency wallets will soon be able to issue virtual MasterCard cards, allowing users to spend stablecoins like USDC wherever MasterCard is accepted. This move is part of Mastercard's effort to simplify transactions with digital assets, expanding its presence in cryptocurrencies amid increasing competition from Visa.