Integrating Klarna with Laravel can enhance your e-commerce website’s functionality and improve the overall user experience. In this tutorial, we will guide you through the step-by-step process of integrating Klarna Payment Gateway into your Laravel application.


Before we begin, make sure you have the following prerequisites installed:

  • Laravel: Install the latest version of Laravel using Composer.
  • Composer: Ensure you have Composer installed globally. You can download it from
  • Klarna API Credentials: To integrate Klarna, you need to sign up for a Klarna account and obtain the necessary API credentials (Merchant ID, Secret, etc.).
  • Basic Laravel Knowledge: Familiarize yourself with Laravel and its directory structure.
  • Step 1: Install Laravel

    While this step is optional, if you haven’t yet created the Laravel app, feel free to proceed by executing the command below.

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    Navigate into your project directory:

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  • Step 2: Install Klarna PHP SDK

    In this step we need to install Klarna PHP SDK via the Composer package manager, so one your terminal and fire the bellow command:

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    This command installs the Klarna SDK, allowing you to interact with Klarna’s APIs.

  • Step 3: Configure Klarna API Credentials

    Now, we need to set the klarna API keys. So first you can go on Klarna website and create a development klarna account username, password, base url and add in your .env file:

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    Make sure to replace your_merchant_id and your_secret_key with your actual Klarna API credentials.

  • Step 4: Define Routes

    Define routes in routes/web.php for the donation-related actions:

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  • Step 5: Create Controller File

    In the next step, now we have create a new controller as DonationController and write both methods on it like as below, So let’s create both controllers:

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  • Step 6: Create Blade File

    In the Last step, let’s create donate.blade.php(resources/views/donate.blade.php) for layout and write code for the donation form.

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    This example provides a basic structure for creating a donation form in Laravel integrated with Klarna’s payment gateway. You’ll need to expand and refine this code to handle validation, database storage, handling webhook events, and updating donation status based on Klarna’s response.

  • Step 7: Run Laravel App

    All the required steps have been done, now you have to type the given below command and hit enter to run the Laravel app:

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    Now, Go to your web browser, type the given URL, or click on the following link. http://localhost:8000/donate