USDC (USD Coin) is a fully-reserved US-dollar stablecoin issued by Circle, designed to always be worth about $1. It runs on chains like Polygon, Ethereum, and BNB Chain and is widely used for payments and settlement.
How USDC works
Each USDC is backed by reserves (cash and short-dated US treasuries) held by the issuer, Circle, which publishes attestations. That backing is what keeps USDC at roughly $1, making it a dependable unit for getting paid on-chain.
Part of our guide to stablecoins for business.