Frequently asked questions
How can I get technical support?
Please ask any specific questions about how to use our APIs via our contact form. We actively monitor and respond quickly to programming questions regarding the APIs.
How can I leave suggestions for improving an API?
We encourage you to reach out with your ideas and suggestions. Please use our contact form to share your thoughts.
How do I take an API into production?
When you are done testing and ready to take the API into production, please upgrade your account. Upgrading your account allows us to verify your identity with your bank (an 'iDIN check'). Once we have verified your identity, you can simply start using the APIs of your choice. You will be billed from that moment on for using production APIs. Testing APIs will continue to be free.
Note: For some APIs we will need to contact you first so we know what settings you need and we will manually onboard you shortly after.
How can I start testing APIs?
Refer to the documentation of the APIs and related Swagger files (blue button in the documentation) to find out how to test API endpoints. Use your own parameters and see the call and response structure for that endpoint.
To test an API in our sandbox, you need to authenticate with your own API keys (client ID and secret). Log into the My API Store and head over to the sandbox to find your personal client ID and secret.