how to change currency rate by api?

The amount you entered will be taken from your balance when you create a topic. When the issue is resolved and you mark it as correct, the reserved money will go to the person who resolved the issue. . OneBox does not participate in this transaction in any way, does not regulate it in any way and does not bear any responsibility to both parties, but only transfers money from the author to the recipient without interest and commissions. Your balance is now USD. Top up.