Sparkasse Hanau API Access & Open Banking Data

Reach your Sparkasse Hanau accounts through a single, privacy-first workspace. open-banking.io links to Sparkasse Hanau (BIC HELADEF1HAN) alongside 2,600+ other EU and UK banks, then keeps your business and personal balances and transactions in sync. Because the service is zero-knowledge and certificate-free, your financial data is decrypted locally with a key only you hold — no eIDAS certificate, no third party ever reads it in the clear.

How to connect Sparkasse Hanau

Connecting happens entirely in 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 your encryption passphrase. Your keys are generated on your own device, so the servers only ever hold your public key.
  2. In the dashboard, pick Sparkasse Hanau and choose the account type you need — business or personal.
  3. You are redirected to Sparkasse Hanau's own secure login, where you approve access on the bank's PSD2 consent screen.
  4. Your accounts flow back into your dashboard and begin syncing. A single consent stays valid for up to 180 days, after which you simply re-approve on the bank's screen.

Access your data

Want to work with the data programmatically? This is an optional step, and only after Sparkasse Hanau is connected. Open the Developers page, create an API key, and export a credentials.json that bundles the API key plus 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 API key alone only ever returns ciphertext, so nothing readable leaves your machine.

At roughly EUR 3/month, you get ongoing Sparkasse Hanau access without certificate paperwork or per-connection fees.

FAQ

Do I need an API key to connect Sparkasse Hanau?

No. Connecting is done in the dashboard by approving access on Sparkasse Hanau's own login. API keys are only for the optional developer step that reads data you've already connected.

Can open-banking.io read my Sparkasse Hanau data?

No. The service is zero-knowledge — it holds only your public key. Your data is decrypted on your device with a private key that never leaves it.

Which Sparkasse Hanau accounts are supported?

Both business and personal accounts, identified by BIC HELADEF1HAN, with consent valid for up to 180 days per approval.

Ready to start? Visit open-banking.io.