Klarna + Visma Spiris

Open Merchant Portal or contact Klarna support

Retrieve the API credentials from the Klarna Merchant Portal. If they are not available there, contact your regional Klarna merchant support team.

Locate the API key

Find the API key that matches the environment you want to use. Klarna API keys follow the format `klarna_<live|test>_api_...`.

Save the credential details securely

If Merchant Portal also shows a UUID username together with the API key, save that as well in case a legacy username/password client needs it.

Confirm the environment

Use test credentials for playground or testing, and switch to live credentials when you are ready for production.

Paste the credentials into Junipeer

Enter the Klarna API key in Junipeer. Only add the UUID username if Junipeer or the specific integration setup explicitly asks for it.

Confirm the exact product and environment

Verify the product variant, environment, tenant, and any middleware involved before configuring credentials.

Let Junipeer confirm the auth pattern

Use the agreed Junipeer implementation scope to confirm whether the setup uses API keys, service users, OAuth, tokens, or another method.

Create or receive the technical credentials

Have the system owner, vendor, or implementation partner create the required integration access according to the agreed setup.

Add the credentials in Junipeer

Enter the issued credentials, host details, and any tenant-specific identifiers in the Junipeer admin when requested.

Verify in a non-production environment first

Run a controlled connection test before enabling a live data flow.