Klarna Developers

|
< Welcome to Klarna. Smoooth payments. Here you will find the integration guides, API documentation, and more to easily integrate with Klarna />

Start

Start your integration here

Direct integrations
Click here if your plan is to start a direct integration without using third party platforms.

Start
With Platforms
All the possible ways to connect Klarna to your business using third party platforms.

Start

Looking for
SDKs?

SDKs and Libraries

Java (SDK)
Java (SDK)
PHP (SDK)
PHP (SDK)
.NET (SDK)
.NET (SDK)
JavaScript (Library)
JavaScript (Library)

Mobile SDK

Apple (Native)
Apple (Native)
Android (Native)
Android (Native)
Apple (Hybrid)
Apple (Hybrid)
Android (Hybrid)
Android (Hybrid)

Product

Test our products

Visit Demo Store
Demo store screenshot

Single Payments Explained

Pay now
Instant payments and subscription payments for customers who like to pay for a purchase immediately.
View Documentation
Pay later
Delayed payments for customers who like low friction purchase and to pay after delivery by invoice.
View Documentation
Slice it
Installment, revolving and other flexible financing plans let customers pay when they can and when they want.
View Documentation

Resources

Resources

Testing Environment
Everything you need to test the Klarna products in a playground environment.

Go
API References
The APIs are organized around resources using URLs and the different HTTP methods to create and modify these resources.

Go
Get Smoooth Handbook
Optimize your integration with our best practices.

Go
Branding & Visuals
Aligned with what people want, and need, when buying. They help you increase your conversion and even the trust for your store.

Go
Klarna Score
Maximise your business value by integrating the Klarna Score assets.

Go
Policies
Read our terms of service, cookies policy and deprecation policy.

Go

Jobs

Hi there,
we’re hiring