Is Pionex legal in the US?

Hello there, I'm curious about the legality of Pionex in the United States. As a cryptocurrency and finance enthusiast, I've come across Pionex and I'm quite intrigued by its automated Trading Bots and trading features. However, I'm not sure if it's legal to use in the US. Could you please clarify if Pionex is indeed legal in the United States and if there are any regulations or restrictions that users should be aware of? Thank you in advance for your help.