Sparda-Bank Hessen API Access & Open Banking

Moving Sparda-Bank Hessen account information into your own tools no longer means wrestling with eIDAS certificates or a PSD2 licence. open-banking.io gives you read access to your Sparda-Bank Hessen current accounts, balances and transactions across a network of 2,600+ EU and UK banks — and because it is zero-knowledge, everything is decrypted on your own device with a key that never leaves it. Sparda-Bank Hessen (BIC GENODEF1S12) supports both business and personal accounts, with a consent window of up to 180 days before you re-authorise.

How to connect Sparda-Bank Hessen

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

  1. Sign up for open-banking.io and set your encryption passphrase. Your keys are generated locally on your device, so only you can ever unlock the data.
  2. In the dashboard, choose Sparda-Bank Hessen and select whether you are linking a business or personal account.
  3. You are redirected to Sparda-Bank Hessen's own secure login, where you approve access under PSD2 — open-banking.io never sees your banking credentials.
  4. Your Sparda-Bank Hessen accounts sync straight into your dashboard, ready to view.

Access your data

Reading the data programmatically is an optional developer step that comes after the connection exists. 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 you can use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Every request is authenticated with the X-Api-Key header, and each response is decrypted locally with your own key. Without that private key, an API key alone returns only ciphertext — the open-banking.io servers hold nothing but your public key and can never read your Sparda-Bank Hessen data.

All of this runs for around EUR 3/month, with no certificate paperwork to maintain.

FAQ

Does open-banking.io store my Sparda-Bank Hessen login?

No. You authenticate directly on Sparda-Bank Hessen's own consent screen. open-banking.io only ever holds your public key, so it cannot read or decrypt your data.

Can I connect a business account?

Yes. Sparda-Bank Hessen offers both business and personal access. You pick the account type in the dashboard when you connect.

How often do I need to re-authorise?

Sparda-Bank Hessen permits a consent window of up to 180 days, after which you approve access again on the bank's login screen.

Ready to start? Head to open-banking.io and link your Sparda-Bank Hessen accounts.