Becoming a Partner

Your application may take up to a few business days to process. During this process you may be contacted by one of our employees to go through the details of your application. Access to the MplusKASSA Partner Program may be rejected based on our decision.

Please fill in the form below as detailed as possible.

We will review your application and let you know as soon as possible whether or not you are accepted to the Partner Program.

When you are accepted as a MplusKASSA Partner, you will get your own MplusKASSA Q-line license key to run the POS software, credentials to connect the POS software to your development administration and API credentials to gain access to the API connected to your development administration.


We have two partnership tiers:

Tier 1 grants basic support. That means you have access to all the resources on this site and we make sure your development API is running. You are not able to request individual support beyond these resources.

Tier 2 grants advanced support. That means you can mail us your own questions and you can consult with us on the best way to approach building your app. You will also be able to publish and promote your application on our website.

The requirement of becoming a Tier 2 Partner is attending at least one of our MplusKASSA API Workshop days in our offices in Leeuwarden.


You will receive a confirmation mail to the email address you supply in this form, please click the link in that email to confirm your application.

So we have a way of reaching you to follow up on details.

If you are planning to develop for one of our existing customers, please verify that they are using the Q-line version of our software.

The first two hours of support are included when creating an integration with MplusKASSA. Additional assistance is available at a rate of €185 per hour.

Once the integration is developed, we will schedule an appointment where the developers can demonstrate its functionality to MplusKASSA. Depending on the type of integration, such as for payment terminals, self-service kiosks, or ordering apps, specific financial arrangements will be made regarding payments.