Sparda-Bank Hannover API & Open Banking Access

Sparda-Bank Hannover (BIC GENODEF1S09) serves members across Lower Saxony, and open-banking.io lets you reach its account data without the usual PSD2 paperwork. There are no eIDAS certificates to buy and no bank-by-bank integration to build. You link your Sparda-Bank Hannover accounts once in a browser dashboard, and both personal and business balances and transactions flow into a single, encrypted view you control.

The difference is where the trust sits. Your encryption keys are generated on your own device, and open-banking.io stores only your public key. That makes the platform zero-knowledge: it can shuttle ciphertext but can never read your Sparda-Bank Hannover statements.

How to connect Sparda-Bank Hannover

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 an open-banking.io account.
  2. Set an encryption passphrase. Your private decryption key is created locally and never leaves your machine.
  3. In the dashboard, search for Sparda-Bank Hannover and choose the account type you hold — business or personal.
  4. You are redirected to Sparda-Bank Hannover's own secure login, where you approve access on the bank's PSD2 consent screen. Credentials go only to the bank.
  5. Your accounts sync back into the dashboard. Consent lasts up to 180 days, after which you simply re-approve on the bank's screen.

Access your data

Once the connection is live, reading it programmatically is an optional developer step. Open the Developers page, create an API key, and export a credentials.json bundling that key with your private decryption key. From there the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API can pull your data — always with the X-Api-Key header. Every response arrives encrypted and is decrypted locally with your own key, so the API key alone only ever yields ciphertext. Note that these tools read and sync existing connections; the initial link is always made in the dashboard.

At roughly EUR 3/month, you get certificate-free coverage across 2,600+ EU and UK banks under one privacy model.

Do I need a developer account to connect?

No. Linking Sparda-Bank Hannover is a point-and-click dashboard flow. API keys matter only if you later want programmatic reads.

Can open-banking.io see my Sparda-Bank Hannover transactions?

No. The service holds only your public key. Decryption happens on your device with a key only you possess.

Which Sparda-Bank Hannover accounts are supported?

Both business and personal accounts (BIC GENODEF1S09), with consent valid for up to 180 days per approval.

Ready to start? Visit open-banking.io.