Is it free to climb Everest?

I understand that many people have a dream of climbing Mount Everest, but I'm curious if there's any cost associated with this endeavor. Does it come with a fee, or is it truly a free adventure for anyone brave enough to attempt it? I'm aware that there are various expenses related to preparing for such a climb, like equipment and training, but I'm specifically asking about any fees or charges associated with actually scaling the mountain itself. Is there a permit required, and if so, what is the cost of obtaining it? Additionally, are there any other charges or expenses that I should be aware of before embarking on this incredible journey?