Examples

Three common flows, mapped to the calls involved.

E-commerce checkout

1. POST /v1/invoice with the cart total in fiat → get an invoice_url.
2. Redirect the buyer to the hosted checkout.
3. On the confirmation webhook, mark the order paid; reconcile via status.

iGaming deposit & payout

1. POST /v1/invoices with player_id → a blocked player is refused before an address is issued.
2. Credit the player’s balance on the confirmation webhook.
3. POST /v1/payouts (or a batch) to pay winnings on-chain, under policy limits.

Card-to-crypto (UPI) deposit

1. Create an order; the customer pays via the on-ramp by card or UPI.
2. The on-ramp forwards USDC on Polygon to the deposit address.
3. Payzuno detects it on-chain and credits — never from the callback. See card-to-crypto.