Is VietBilling a payment gateway?
No. VietBilling is independent software that coordinates billing lifecycle on the merchant's PayOS integration.
PayOS Integration
PayOS receives funds. VietBilling keeps the Subscription lifecycle legible.
Merchants connect PayOS credentials per Organization; VietBilling reconciles payment links and status in the same billing context.
Start for freeOutcome
Funds settle directly to the merchant's PayOS account and are not held by VietBilling.
01
Connect credentials
Save Client ID, API key, and checksum key in Organization Settings.
02
Create Checkout
VietBilling calls PayOS using the Organization's configuration.
03
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
Does VietBilling hold funds?
No. Payment funds settle directly to the merchant's PayOS account.