Sparkasse Neustadt Aisch-Bad Windsheim API Access

Sparkasse Neustadt a.d. Aisch-Bad Windsheim (BIC BYLADEM1NEA) serves the Middle Franconian districts around Neustadt an der Aisch and Bad Windsheim. If you keep a business or personal account there, open-banking.io lets you pull your balances and transaction history into one place — and, if you write code, read that same data programmatically. There is no certificate to file, no eIDAS setup, and no bespoke integration to build.

What makes the service different is where your data is decrypted. open-banking.io is zero-knowledge: an encryption key is generated on your own device, and its servers only ever hold your public key. Anything synced from your Sparkasse is stored encrypted and only becomes readable on hardware you control.

How to connect Sparkasse Neustadt a.d. Aisch-Bad Windsheim

Connecting happens entirely inside the open-banking.io dashboard — not through any API call, endpoint, or key.

  1. Sign up for open-banking.io and set your encryption passphrase. Your keys are created locally in that step.
  2. In the dashboard, choose Sparkasse Neustadt a.d. Aisch-Bad Windsheim and select the account type — business or personal.
  3. You are redirected to the Sparkasse's own secure login, where you approve access under PSD2. Consent can run up to 180 days before you renew it.
  4. Your accounts sync back into the dashboard, ready to view.

That's the whole flow. No developer redirects the account holder, and no code is involved in granting access — only the bank's own consent screen.

Access your data

Once the connection exists, reading it programmatically is an optional developer step. 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 tooling only reads and syncs the connection you already made in the dashboard — there is no connect command.

All of this runs at around EUR 3/month.

Does an API key alone let someone read my transactions?

No. Without your private decryption key, an API key returns only ciphertext. Readable data requires the key held on your device.

Can open-banking.io staff see my Sparkasse data?

No. The service is zero-knowledge and stores only your public key, so it cannot decrypt what it holds.

Up to 180 days, after which you re-approve on the Sparkasse's login screen.

Start at open-banking.io.