Klarna as Klarna offers it to the customer — pay now, pay later, in instalments — on Klarna's Hosted Payment Page. Klarna authorises, the money is taken when the order is invoiced. No libraries: Klarna's Payments, Hosted Payment Page and Order Management APIs over Magento's HTTP client.
Klarna picked in the demo checkout.
What it does
Klarna's Hosted Payment Page, all of Klarna's options