$USDC USDC (USD Coin) is a stablecoin that is pegged 1:1 to the U.S. dollar, meaning its value is designed to remain consistently equal to one U.S. dollar. It was launched by Circle in partnership with Coinbase under the Centre Consortium and is fully backed by reserves held in cash and short-term U.S. government securities. USDC is widely used in the crypto ecosystem for trading, payments, and decentralized finance (DeFi) because it offers the stability of fiat currency along with the speed and accessibility of blockchain technology. It operates on several major blockchains, including Ethereum, Solana, and Avalanche, and is considered one of the most transparent and regulated stablecoins due to its regular audits and clear reserve reporting.