$USDC USDC (USD Coin) is a regulated, fully-backed stablecoin pegged 1:1 to the U.S. dollar. Issued by Circle and governed by the Centre consortium (co-founded by Circle and Coinbase), USDC is widely used for trading, payments, and DeFi applications. Each USDC token is backed by equivalent fiat reserves held in audited U.S. bank accounts or short-term U.S. Treasuries. It operates across multiple blockchains, including Ethereum, Solana, and Avalanche, enabling fast, low-cost transfers. As a trusted stablecoin, USDC offers transparency, regulatory compliance, and stability—making it a popular choice for both retail users and institutional investors in the cryptocurrency ecosystem.