Is Uniswap available in the US?

Hello there, I was wondering if you could clarify something for me. I've been hearing a lot about Uniswap, and I'm interested in using it for some of my cryptocurrency transactions. However, I'm based in the United States, and I'm not sure if Uniswap is accessible and legal to use here. Could you tell me if Uniswap is available in the US, and if there are any specific regulations or restrictions I should be aware of? Thank you for your help!