Guidelines & Resources
working with Klarna
Most Popular Docs
I want to discover how Klarna APIs work
I want developer test credentials
Get started with Klarna Checkout
Free Klarna UK marketing resources
Get started with On-site messaging
Load the Klarna widget
Merchant Portal in 10min
Familiarize yourself and learn about all the benefits you get from using the portal in your daily work
On-site messaging in 14min
Activating our tool will help you get higher average order values and better conversion rates
User Experience in 11min
How small changes will help you create a high-quality website, ensuring conversions and returning customers
Integrating Klarna Checkout
The fastest way to get started with Checkout!
Looking for more ?
Browse our documentation library to get started!
Finance purchases in your own checkout, in your online store via Klarna
Seamless checkout solution that delivers a best-in-class user experience
Increase sales and consumer confidence by highlighting available financing options, before doing a checkout
Empower your app with Klarna's in-app purchase experience
Hosted Payment Page
Integrate Klarna without any client side work
Merchants can enable a sale as soon as they have caught the attention of a consumer
Give shoppers the power to choose their delivery experience
Handle your day to day merchant activities in an easy and user-friendly way
Settlement Reports help you reconcile Klarna payments towards you
Merchant Card Service
Lets you settle orders with virtual credit cards issued by Klarna
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