Skip to content
NervixPayDocs

Fee credits and top-ups

How the prepaid platform fee works: who pays it, how to top up in crypto, and what happens when the balance reaches zero.

Because payments go straight to your wallet, the platform fee is never taken from a payment. On the free trial and Starter, each successful payment deducts 0.50 USD from a prepaid balance. Growth and Business include it.

Top up

  1. Step 1: Open Billing

    Go to Billing. It shows your balance, the fee for your plan, unpaid fees and your ledger.

  2. Step 2: Choose an amount

    Pick 5.00 USD, 10.00 USD, 25.00 USD, 50.00 USD or another amount from 5.00 USD to 500.00 USD.

  3. Step 3: Pay the invoice

    Pay the exact amount shown in USDC, USDT or the native coin on Polygon, Ethereum or BNB Chain within 24 hours. The credit is added when the transfer is verified on-chain.

When the balance runs out

  • Paying customers are never blocked. An order that settles while your balance is empty still settles; the fee is recorded as unpaid.
  • New checkouts pause only when you have unpaid fees and the balance cannot cover the next fee. Customers then see "temporarily unavailable", never your billing details.
  • Your next top-up clears unpaid fees oldest-first, then the rest becomes your balance.
  • The dashboard warns you when fewer than 3 fees remain.
Fee credits and top-ups | NervixPay Docs