Mastercard launched Agent Pay to tap into AI-driven agentic payments and partnered with MetaMask to release a self-custody crypto debit card across most U.S. states, linking its payment network directly to on-chain wallets. However, its shares declined alongside Visa and American Express after a Citrini Research scenario raised concerns about stablecoins and AI disrupting traditional payment networks. The company is actively innovating in AI and crypto but faces market uncertainty over long-term competitive threats.