List of top USDT coins by market cap. The current USDT coin market cap is $514.37B , which has changed by -9.69% in the past 24 hours; the USDT coin trading volume is $5.13M, which has changed by -0.20% in the past 24 hours. There are 2,218 cryptocurrencies in the USDT coin list today.
USDT, officially known as Tether, is one of the most widely used stablecoins in the cryptocurrency ecosystem. Launched in 2014, USDT is designed to maintain a stable value by being pegged 1:1 to the US Dollar, making it an essential bridge between traditional fiat currencies and the volatile crypto market. Operating primarily on the Ethereum blockchain, though also available on multiple other networks including Tron, Polygon, and Bitcoin's Omni layer, USDT serves as a critical tool for traders, investors, and institutions seeking price stability while maintaining the benefits of blockchain technology. The stablecoin is backed by Tether's reserves, which theoretically correspond to the circulating supply of USDT tokens. With a market capitalization consistently ranking among the top cryptocurrencies, USDT has become the preferred trading pair on most major cryptocurrency exchanges, facilitating liquidity and enabling seamless conversion between digital assets and fiat equivalents. Its widespread adoption across DeFi protocols, lending platforms, and payment systems has established USDT as a cornerstone infrastructure component within the Web3 ecosystem, providing users with a reliable medium of exchange and store of value in an otherwise highly volatile market.