Payment Gateway & API Integration
Connect checkout, billing or booking payments to a provider and keep your business records consistent with the actual payment result. Rootscratch builds payment integrations for Philippine and international workflows where the selected provider supports the merchant.
Treat the provider's verified event as the payment result
A customer returning from checkout does not prove that an order was paid. We connect the application to a provider-supported payment flow, store a stable order or booking reference and verify server-side notifications before changing business records.
The integration can cover checkout creation, payment status, repeated callbacks, refunds and reconciliation. Tests include a delayed event, duplicate notification, abandoned checkout and a mismatch between provider and application records. Credentials stay server-side, and logs avoid sensitive payment data.
Bring the provider documentation, merchant-account access, currencies, payment methods and the order states your team uses. Onboarding, settlement, fees, refunds and approval remain subject to the selected provider. Read the payment integration checklist or describe your checkout and payment process.