Coinbase is one of the leading cryptocurrency exchanges in the United States. Coinbase allows users to buy and sell cryptocurrencies such as Bitcoin, Ethereum, and Litecoin. Coinbase also has a mobile app that allows users to buy, sell, and spend cryptocurrencies on the go. Coinbase is headquartered in San Francisco, CA and was founded in 2012. Coinbase has over 30 million customers worldwide and is available in 32 countries. Coinbase supports a variety of payment methods, including credit cards, debit cards, and bank transfers.