Circle is a financial technology firm behind the USD Coin (USDC). USDC is a cryptocurrency pegged to the US dollar at a 1:1 ratio, meaning that each USDC is backed by one US dollar or an equivalent asset held in regulated financial accounts.
As for Binance, it is one of the largest cryptocurrency exchanges in the world. Binance supports USDC, allowing users to buy, sell, and trade USDC on its platform.