Marketplace-wide defaults. Per-vendor overrides live on each vendor detail page.
NOWPayments handles customer checkout. Vendor payouts are sent in USDC on Ethereum directly from the platform treasury wallet the moment a line item is marked shipped.
/api/webhooks/nowpayments
Defaults apply to any vendor whose commissionRateBps is null. Reserve is the rolling buffer held to cover refunds.
commissionRateBps