How much does Paxos charge?

As a keen observer of the cryptocurrency and finance landscape, I'm curious to understand the cost structure associated with Paxos. Could you elaborate on the various fees Paxos charges for its services? Specifically, I'm interested in knowing if there are any upfront setup costs, transaction fees, custody fees, or any other recurring charges that a user or business might encounter when utilizing Paxos' platform. Understanding these costs would help me determine if Paxos is a viable option for my financial needs.