Stablecoins are a type of cryptocurrency designed to maintain a stable value against a traditional currency such as the dollar or euro. They are characterized by reducing price volatility, making them an ideal choice for digital payments. They are used in e-commerce, cross-border financial transfers, and even in decentralized banking systems. Some of the most well-known stablecoins are USDT and USDC. These coins offer fast transfers, low fees, and ease of use, but they face challenges such as government regulation and trust in the issuers. Nevertheless, their future in the payments sector looks promising and evolving.