#Poloniex Poloniex is a cryptocurrency exchange that allows you to buy and sell various crypto currencies, such as Bitcoin, Ethereum, Litecoin, and more. You can also trade crypto pairs, lend and borrow crypto, and participate in various promotions and events on Poloniex. To use Poloniex, you need to create an account on their website¹ or log in with your email, phone number, or QR code². You can also view the market prices, volumes, and trends of different crypto currencies on their website³. Poloniex is one of the oldest and most popular crypto exchanges in the world, with over 100 trading pairs and millions of users.