Payment Gateways
Payment gateways are the technologies that process debit and credit card transactions — whether through physical card readers in retail stores or online payment portals on e-commerce platforms.
Ottu connects your business to 45+ payment gateways through a single integration. Configure, monitor, and switch between gateways without changing your code.
Gateway Catalog
Browse all supported payment gateways. Filter by provider type, region, and country, or search by name.
BHD
Purchase
Refund
AutoDebit
KWDPurchaseRefund
OMRPurchaseRefundAutoDebit
QARPurchaseRefund
EGPPurchase
KHR
USDPurchaseRefund
Authorize
Capture
AEDEGP
IQDPurchase
KWDBHDQAROMRAED
SARUSDPurchaseRefundAuthorizeCapture
Void
TokenizationAutoDebit
KWDBHDQAROMRAEDSARUSDPurchaseRefundAuthorizeCaptureVoidTokenizationAutoDebit
OMRPurchaseRefund
KWDAEDPurchaseRefund
SARPurchaseRefundAuthorizeCaptureTokenization
OMRPurchaseRefund
OMRPurchaseRefund
KWDBHDQAROMRAEDSARPurchaseRefundTokenization
EGPPurchaseRefund
SARPurchaseRefund
KWDBHDQAROMRAEDSARPurchaseRefundAuthorizeCaptureTokenizationAutoDebit
CADPurchase
AEDPurchaseRefund
KWDBHDQAROMRAEDSARPurchaseRefund
KWDPurchase
BHDPurchaseRefund
BHDPurchaseRefund
KWDPurchase
USDPurchase
SARBHDPurchaseRefundTokenization
SARPurchase
KWDPurchaseRefundAuthorizeCapture
SARKWDBHDQAROMRAEDPurchaseRefund
KWDPurchaseRefund
SARKWDBHDQAROMRAEDPurchaseRefund
KWDBHDQAROMRAEDSARPurchase
IDRPurchaseRefund
KWDPurchaseRefund
KWDPurchase
IQDSARPurchase
SARPurchaseRefundAuthorizeCapture
KWDBHDQAROMRAEDSARPurchaseRefund
AEDSAREGPPurchaseRefundAuthorizeCaptureVoid
BHDPurchaseRefundAuthorizeCapture
INRPurchaseRefund
QARPurchaseRefund
QARPurchaseRefund
KWDPurchaseRefund
USDPurchaseRefund
AEDPurchaseOperations
Ottu supports three core payment operations across gateways. Not all gateways support every operation — check the gateway catalog above for details.
Operations only work when the payment currency matches the MID currency. If a customer pays in a different currency via currency exchange, operations won't function. See Operations for technical details.
Capture
Collecting a full or partial authorized amount and crediting it to the merchant's bank account.
Conditions:
- The payment transaction must be authorized
- The authorized amount must be sufficient
Refund
Returning the full or partial amount paid (or captured) to the customer's bank account.
For Auth transactions:
- A capture operation must be done before refunding
- The captured amount must be enough to cover the refund amount
For Purchase transactions:
- The paid amount must be sufficient for the requested refund
Void
Canceling or rolling back an authorized payment transaction.
Conditions:
- The payment transaction must be authorized
- No capture operation was performed
What's Next?
- Payment Routing — Route payments to the best gateway automatically
- Currencies — Multi-currency support and exchange configuration
- Operations & Controls — Refund and void access control, two-step authorization
- For developers: Payment Status Inquiry — auto-inquiry and transaction reliability