What's a render credit?
Render credits are how usage is tracked on Uberduck. Generating media via API on Uberduck costs render credits. Each second of audio costs 1 render credit. Each second of video costs 2 render credits. Render credits refresh at the beginning of each month. Once you go over your monthly limit on the free plan, you'll have to upgrade to one of the paid plans. If you go over the montly limit on the paid plans, you'll be charged for your overage usage at the end of the month.