$USDC USDC (USD Coin) is a regulated, fully-backed stablecoin pegged 1:1 to the U.S. dollar, providing a reliable digital dollar for global use. Issued by Circle and governed by Centre, USDC is backed by cash and short-term U.S. Treasuries, with reserves audited monthly to ensure transparency. It operates across multiple blockchains, including Ethereum, Solana, and Polygon, allowing fast, low-cost transactions. USDC is widely used in DeFi, crypto trading, and cross-border payments, offering stability in a volatile market. Its integration with wallets, exchanges, and apps makes it a key tool for developers, investors, and businesses engaging in digital finance worldwide.