Is OKX exchange available in the US?

Excuse me, I'm curious about the availability of the OKX exchange in the United States. Could you please clarify whether or not American citizens are able to access and use the services provided by OKX? Additionally, if there are any restrictions or limitations for users in the US, could you elaborate on those as well? I'm interested in understanding the full scope of the exchange's accessibility and compliance with US regulations. Thank you for your time and consideration.