Okcoin is a cryptocurrency exchange that was founded in 2013 by Star Xu, a Chinese entrepreneur who previously worked at Yahoo China. The exchange was launched in Beijing, China, and quickly became one of the largest cryptocurrency exchanges in the world. Okcoin has since expanded to other countries, including the United States, Singapore, and Japan.

The exchange offers trading in a variety of cryptocurrencies, including Bitcoin, Ethereum, Litecoin, and Bitcoin Cash. Okcoin also offers margin trading, futures trading, and over-the-counter trading for institutional investors. The exchange has a user-friendly interface and offers 24/7 customer support to its users.

Okcoin has faced some regulatory challenges in China, where the government has cracked down on cryptocurrency trading. However, the exchange has continued to operate in other countries and has expanded its services to include fiat-to-crypto trading. Okcoin has also launched its own stablecoin, OKUSD, which is pegged to the US dollar and can be used for trading on the exchange. Overall, Okcoin is a reputable and reliable cryptocurrency exchange that offers a wide range of trading options for both retail and institutional investors.