$USDC USD Coin (USDC) is a regulated stablecoin pegged 1:1 to the U.S. dollar, issued by Circle and Coinbase. It is backed by cash and U.S. government bonds, ensuring stability. USDC operates on multiple blockchains (Ethereum, Solana, Tron, etc.), making it widely used for trading, payments, DeFi, and cross-border transactions. It is considered transparent and compliant, with regular audits verifying its reserves.