The answer to the question is yes, you will pay a fee for the approval and staking of your transaction. The fee is known as the gas fee and is typically paid in Ether (ETH). The amount of the fee will depend on the amount of gas used in the transaction and the current market rate for gas. Generally, the fee is around 0.73 USD, but it can vary depending on market conditions. To ensure that you are paying the lowest possible fee, it is important to be aware of the current market rate for gas and to use the most efficient gas rate for your transaction.