Present Klarna in your checkout for a one-time payment. Choose your presentation method (Klarna Web SDK or Klarna Payment Presentation API) and whether you or Worldpay orchestrates the Klarna authorization.
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Build your checkout to present Klarna for a one-time payment: a single purchase with no saved payment method. Two decisions shape the integration:
1.
How you present Klarna: the Klarna Web SDK (in-page pop-up) or the Klarna Payment Presentation API (full-page redirect).
2.
Who orchestrates the payment: you (Partner orchestrated) or Worldpay (Worldpay orchestrated).