Worldwide Payment Gateway guide

Connect to the Worldwide Payment Gateway (WPG), using our XML API.

Why the XML API

The XML API is right for you if:

There are two ways to integrate to the Worldwide Payment Gateway (WPG).

The choice depends on thePCI levelthe business supports, and thefeaturesrequired.

IfPCI DSSlevel is a crucial factor, the two integrations break down like this:

Direct	Hosted
If you are PCI DSS compliant to a level of SAQ A-EP or above, theDirectintegration offers the most features and control. Use the Direct integration with ourClient Side Encryptionservice to prevent the sensitive card data passing through your servers If you collect and handle credit/debit card data because you're already fully PCI DSS compliant, you won't need Client Side Encryption	If you want a minimal PCI DSS burden (or a faster integration but with less features), theHostedintegration sends your shoppers to our secure payment pages, where we collect the sensitive data and process the payments for you You can alsoTokeniseseveral payment methods through this integration, and use the tokens through the Direct model

To give you an idea of the differences between each integration:

	Direct	Hosted
Control of the shopper journey Better understand your shoppers	Full	Customisable, brandable payment pages
Mobile Wallets Apple Pay, Google Pay and Samsung Pay
Batch orders Group payments together
Dynamic 3D Secure Trigger 3DS by rules
Card Payouts Push original credits to cards
Latin America payments Take payments and instalments in LatAm
Fraud detection services Advanced fraud engines

Use this guide to:

Integrate card payments via theDirectorHostedmethod
AddClient Side Encryptionto prevent card details passing through your server
AddTokenisationto store and reuse shopper details
Add theApple Pay,Google PayandSamsung PayMobile Wallets
AddLatin Americato your integration
Add various industry-specific extras or optimisation services, such asAirline Dataor3D Secure third party MPIs
Investigate and addAlternative Payment Methods
Connect up various post payment processes such asorder modifications, orcard payouts

Got an error? Check out ourTroubleshootarea.