Documentation for anyone working with Klarna

Most Popular Docs

API

I want to discover how the Klarna Payments API works

Guide

Get started with Klarna Payments

API

I want to discover how the Klarna Checkout API works

Article

I want developer test credentials

Guide

Get started with Klarna on Shopify

Article

Free Klarna UK marketing resources

Guide

Get started with On-site messaging

Video Tutorials

Merchant Portal in 9 min

Get introduced to your all-in-one business assistant

On-site messaging in 11 min

Ready to boost your sales up to 25% with customized messaging?

User Experience in 11 min

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!

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

Empower your app with Klarna's in-app purchase experience

Hosted Payment Page

Integrate Klarna without any client side work

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

How to handle and respond to disputes