PayOS Integration

PayOS receives funds. VietBilling keeps the Subscription lifecycle legible.

Connect PayOS credentials per Organization. VietBilling coordinates checkout flows, reconciles payment links, and manages billing lifecycles end to end.

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Outcome

Funds settle directly to the merchant's PayOS account and are not held by VietBilling.

Connect credentials

Save Client ID, API key, and checksum key in Organization Settings.

Create Checkout

VietBilling calls PayOS using the Organization's configuration.

Receive the result

Payment state is linked back to Checkout, Order, and Subscription.

Integrate from your backend

API keys are server secrets. Never expose them in browser or mobile code.

# Configure PayOS in Organization Settings, then create checkout
POST /public/v2/checkouts
Authorization: Bearer vb_live_...

FAQ

Is VietBilling a payment gateway?

No. VietBilling is independent software that coordinates billing lifecycle on the merchant's PayOS integration.

Does VietBilling hold funds?

No. Payment funds settle directly to the merchant's PayOS account.