$USDC $USDC (USD Coin) is a stablecoin backed by fiat currency, jointly launched by Circle and Coinbase, pegged to the US dollar at a 1:1 ratio, ensuring value stability. Each USDC is supported by corresponding dollar reserves, which are subject to regular audits to enhance transparency and trust. It is widely used in scenarios such as cross-border payments, DeFi, and exchange trading, and is one of the top stablecoins by market capitalization. Its stability and compliance make it a key player in digital finance.