Binance Coin (BNB) serves as the cryptocurrency of the Binance exchange, emphasizing crypto-only trading without fiat options. Originating from a successful ICO and utilizing the ERC20 token standard, BNB is integral for paying various platform fees, offering significant discounts to incentivize its use. With a capped supply of 200 million coins and a strategic buyback and burn policy to enhance value, BNB plays a crucial role on Binance, extending beyond fee payments to function as gas for the platform's operations.