1. Create order
Your backend creates a PayIn payment order tied to your internal order or invoice.
Order Mode
Stablecoin checkout for orders and invoices.
Order Mode is for a specific payment request: a checkout, invoice, payment link, or one-time bill. PayIn creates the payment flow, monitors the transaction, and notifies the merchant system.
2. Show instructions
The customer sees the amount, token, network, receiving address, and expiration time.
3. Confirm and fulfill
PayIn detects payment, sends webhooks, and your system fulfills when safe.