Sparkasse Rastatt-Gernsbach API & Open Banking Access

Want programmatic, PSD2-compliant access to your Sparkasse Rastatt-Gernsbach (BIC SOLADES1RAS) accounts without wrestling with eIDAS certificates or a bank sandbox? open-banking.io links your Baden-Württemberg Sparkasse to a single dashboard, then hands you optional developer tooling on top. It covers both business and personal accounts, with consent lasting up to 180 days before you re-approve.

The service is zero-knowledge and certificate-free: encryption keys are generated on your own device, and open-banking.io only ever holds your public key. Everything you read is decrypted locally.

How to connect Sparkasse Rastatt-Gernsbach

Connecting happens entirely inside the open-banking.io dashboard — there is no API call, code, or key involved in this step.

  1. Sign up for open-banking.io and set an encryption passphrase. Your private key is created locally and never leaves your device.
  2. In the dashboard, pick Sparkasse Rastatt-Gernsbach and choose the account type you need — business or personal.
  3. You are redirected to Sparkasse Rastatt-Gernsbach's own secure login, where you approve access on the bank's PSD2 consent screen.
  4. Your accounts sync back into the dashboard, ready to view. That consent stays valid for up to 180 days.

Access your data

Once the connection exists, developers can optionally read it programmatically. On 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.

Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your own key. The CLI and SDK only read and sync connections you already made in the dashboard — they never establish a new one. An API key on its own returns ciphertext; without your private key, the data stays unreadable, which is what makes the whole pipeline zero-knowledge.

All of this runs for roughly EUR 3/month.

FAQ

Does open-banking.io support Sparkasse Rastatt-Gernsbach business accounts?

Yes. Both business and personal accounts (BIC SOLADES1RAS) can be connected and synced, subject to the bank's PSD2 consent.

Can open-banking.io read my Sparkasse Rastatt-Gernsbach data?

No. The service is zero-knowledge and holds only your public key. Data is decrypted on your device with a private key only you control.

How often do I re-approve access?

Sparkasse Rastatt-Gernsbach grants consent for up to 180 days. After that, you re-approve on the bank's own login screen to keep syncing.

Ready to start? Visit open-banking.io.