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API
I want to discover how Klarna APIs work
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Article
I want developer test credentials
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Guide
Get started with Klarna Checkout
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Guide
Free Klarna UK marketing resources
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Guide
Get started with On-site messaging
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Article
Load the Klarna widget
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Video Tutorials
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!
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Browse our documentation library to get started!
All
Core
Features
Services
Klarna Payments
Finance purchases in your own checkout, in your online store via Klarna
Klarna Checkout
Seamless checkout solution that delivers a best-in-class user experience
On-site Messaging
Increase sales and consumer confidence by highlighting available financing options, before doing a checkout
In App
Empower your app with Klarna's in-app purchase experience
Hosted Payment Page
Integrate Klarna without any client side work
Instant Shopping
Merchants can enable a sale as soon as they have caught the attention of a consumer
Shipping Assistant
Give shoppers the power to choose their delivery experience
Order Management
Handle your day to day merchant activities in an easy and user-friendly way
Settlement Reports
Settlement Reports help you reconcile Klarna payments towards you
Merchant Card Service
Lets you settle orders with virtual credit cards issued by Klarna
Careers
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