Is OKX bot free?

Hello there, I'm curious about the OKX bot and I have a question. Is the OKX bot service offered free of charge, or does it come with a cost? I've heard about its potential for automating trades and enhancing trading strategies, but I want to make sure I have all the facts before diving in. Could you please clarify if the OKX bot is a free tool or if there are any associated fees that I should be aware of? Thank you in advance for your help.