With a valid test certificate, you can immediately test on our sandbox of the XS2A API and start integrating your application.
Do you want to use the PSD2 interface of the German Sparkassen-Finanzgruppe with your client application in the future and integrate and test it at an early stage? Then our PSD2 sandbox will help you. It enables you to perform all tests and integration work, even without real customer data. You can find all information about the application here on the page.
With the PSD2 sandbox and a test certificate, you can test and harden your client application or middleware today. Even before deploying real certificates that a registered KID (account information service) or permission-based ZAD (payment initiation service) will use.
A list of international trust centers can be found here, these trust centers are supported in the productive context. It should be noted that only test certificates of the listed trust centers are supported on the sandbox system.
Like the productive interface, the Sparkassen-Finanzgruppe sandbox is based on the XS2A interface specification "NextGenPSD2" of the European standardization initiative of the Berlin Group.