I need to hop onto the discord to get clarification on that, actually. It looks like everyone who wants to participate in canon RP has to spend IRL money. I might have read it wrong, though!
There is a Guild night live RP even which is a big organized event that costs money. But there are a LOT of little free unpaid RPs that are character canon and are free. You've got me on Discord. PM me when you want to talk. I set up the RP channels there so know how they work pretty darned well.