Stadtsparkasse Wuppertal API Access & Open Banking
Reaching your Stadtsparkasse Wuppertal balances and transactions used to mean eIDAS certificates, sandbox registrations and a developer portal. open-banking.io removes all of that. It gives you a single dashboard for regulated PSD2 access to Stadtsparkasse Wuppertal (BIC WUPSDE33XXX) covering both business and personal accounts, with a consent that stays valid for up to 180 days before you renew it.
Nothing about the connection is certificate-based, and no code is required to get started. You approve access directly on Stadtsparkasse Wuppertal's own login screen, and every piece of data that flows back is decrypted on your own device with a key only you hold.
How to connect Stadtsparkasse Wuppertal
Connecting happens entirely inside the open-banking.io dashboard — there is no API call, endpoint or key involved in this step:
- Sign up for open-banking.io and set your encryption passphrase. Your keys are generated locally on your device, so open-banking.io only ever holds your public key.
- In the dashboard, choose Stadtsparkasse Wuppertal and pick the account type you need — business or personal.
- You are redirected to Stadtsparkasse Wuppertal's own secure login, where you authenticate and approve the PSD2 consent (valid for up to 180 days).
- Your accounts sync back into the dashboard, ready to view.
Access your data
Once the connection exists, developers can optionally read it programmatically. Open the Developers page, create an API key and export a credentials.json — this bundles the API key together with your private decryption key. From there use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Every request carries the X-Api-Key header, and each response is decrypted locally with your own key. The CLI and SDK only read or sync connections you have already approved — they never establish a new one. An API key on its own returns ciphertext; without your private key it cannot be read.
All of this runs for roughly EUR 3 per month, with 2,600+ banks supported alongside Stadtsparkasse Wuppertal.
Is my Stadtsparkasse Wuppertal login shared with open-banking.io?
No. You enter your credentials only on Stadtsparkasse Wuppertal's own screen. open-banking.io never sees them.
How long does access last?
Up to 180 days per consent. When it expires, reconfirm on the bank's login to continue syncing.
Can open-banking.io read my transactions?
No. It is zero-knowledge and stores only your public key, so data is decrypted solely on your device.
Start at open-banking.io.