USDC (USD Coin) is a fully-reserved stablecoin issued by Circle, designed to maintain a 1:1 peg with the US dollar. It is backed by highly liquid cash and cash-equivalent assets, with regular third-party attestations of its reserves. Usable on many major blockchains, it supports sending, receiving, trading, saving, and spending digital dollars globally with low costs, fast settlement, regulatory compliance, and transparency.