Accept a Klarna payment

Manually listing payment methods

We recommend using dynamic payment methods, where Stripe handles the logic for dynamically displaying the most relevant eligible payment methods to each customer to maximize conversion. If you choose to manually list payment methods, specify klarna in the payment_method_types when you create a Checkout Session to include Klarna on your checkout page. If you have line_items in different currencies, you need to create separate Checkout Sessions.

curl https://api.stripe.com/v1/checkout/sessions \
  -u "
sk_test_BQokikJOvBiI2HlWgH4olfQ2
:" \
  -d "line_items[0][price_data][currency]"=eur \
  -d "line_items[0][price_data][product_data][name]"=T-shirt \
  -d "line_items[0][price_data][unit_amount]"=1099 \
  -d "line_items[0][quantity]"=1 \
  -d mode=payment \
  -d "payment_method_types[0]"=card \
  -d "payment_method_types[1]"=klarna \
  --data-urlencode success_url="https://example.com/success"

Test your integration

When testing your Checkout integration, select Klarna as the payment method and click the Pay button. In testing environments, you can then simulate different outcomes within Klarna’s redirect.

Below, we have specially selected test data for the currently supported customer countries. In a sandbox, Klarna approves or denies a transaction based on the supplied email address.

For production testing, you can use an amount of 3500 in your local currency to test all Klarna payment options besides Financing. For example, if you want to test “Pay in 3” in Italy, you can use a transaction of 35.00 EUR.

Two-step authentication

Any six digit number is a valid two-step authentication code. Use 999999 for authentication to fail.

Repayment method

Inside the Klarna flow, you can use the following test values to try various repayment types: