A question about payment methods

A temporary authorization hold will be placed on your card for $5. At the end of each calendar month, you’ll be charged for all usage that happened during the month.

What does the above sentence mean?
Does it mean that you need to use a minimum of $5 per month? Do you deduct $5 every month?
As I am a Chinese, I always translate English into Chinese, so the meaning is a bit different. Those who hope to understand can help explain. Thank you very much.
It would be best to provide a general overview of the entire payment process, including precautions, etc. Thank you very much.

$5 is not an important number and has nothing to do with your billing. You will never pay those $5. When you sign up for services on the Internet, apps often make a “temporary charge” to see if your card is valid, which they then refund. For example, Uber and Spotify and many other applications may do this.

Again, $5 has no meaning - they don’t deduct $5 and you don’t need a minimum of $5 per month.

You’re billed simply according to your usage here.

thank you. Since I usually use Chinese bank cards, I am too familiar with international bank cards
Therefore, thank you very much for explaining to me. Thank you.

By the way, I have another question, is it how much dollars I spend on the API that he will deduct from the card??