Is Coinbase legal in America?

Good day, I have a question about the legality of Coinbase in the United States. I've heard that Coinbase is a popular platform for buying, selling, and storing cryptocurrencies, but I'm not entirely sure if it's legal to use in America. Could you please clarify if Coinbase is indeed legal to operate and use within the United States? Additionally, are there any specific regulations or licenses that Coinbase needs to comply with in order to operate legally in the country? Thank you in advance for your assistance.