Dear developers,
We would like to inform you about important updates regarding the current PSD2 API and the transition to a new XS2A dedicated interface.
As you have already been informed, to further improve our services, the current PSD2 interface will be replaced with a new solution.
As the 08.11.2026 marks six months until the official cut-off for the current solution, we would like to provide you with key details regarding the migration process moving forward:
  • The complete specification for the new interface will be provided latest by mid-January 2026, to ensure compliance with the regulatory 3-month announcement as per RTS Art. 30 (4) before the final closure
  • The new interface is already functional for most use cases, with the exception of cross-border payments and standing orders integration, which will be delivered also by mid-January
  • A sandbox environment for the new solution will be available with the release of the complete specification in mid-January 2026
  • With the final release of the remainder of services mid January, we will announce a mandatory three-months migration period, where all TPPs are asked to connect all traffic to the new dedicated interface. We reserve the right to cut off the current solution after the three months migration period even before the 8th of May 2026.
  • We thus strongly encourage you to onboard to the new solution as early as possible to ensure a seamless transition before the final closure of the current PSD2 Interface on 08.05.2026.
Onboarding Process:
Onboarding to the new solution is already possible as part of our voluntary partner campaign. To onboard and connect:
  1. Visit the new solution’s developer portal at https://developer.commerzbank.com/.
  2. Register yourself on the developer portal to get access to full documentation on the new XS2A APIs.
  3. For full integration to our new XS2A dedicated interface, please contact our XS2A Interface Support team at xs2asupport@commerzbank.com in order to request full access to the new solution’s API.
Additional Information:
  • In line with the BaFin Aufsichtsmitteilung from 19.05.2025, the new dedicated interface will not offer the FCS (Funds Confirmation Services) endpoint anymore
  • Please also note that, for security and technical reasons, it will not be possible to use existing consents and payments IDs via the new dedicated interface. This means that all consents will need to be created anew in the new dedicated interface.
Thank you for your understanding and cooperation in this transition. Should you have any inquiries or need further clarification, please do not hesitate to reach out to us.
Thank you for your understanding.
Your Commerzbank Support-Team