What is an example of a service fee?

Could you please elaborate on what you mean by "service fee"? Are you referring to the fee charged for a specific service rendered, such as a transaction fee for buying or selling cryptocurrency on an exchange platform? If so, an example of a service fee would be the percentage or flat rate charged by the exchange for facilitating the trade. These fees are typically deducted from the total amount of the transaction and can vary depending on the exchange and the type of trade being conducted.