Bordesholmer Sparkasse AG Open Banking & API Access

Bordesholmer Sparkasse Aktiengesellschaft is a Schleswig-Holstein savings bank (BIC NOLADE21BOR), and open-banking.io lets you reach its account data without certificates, bank partnerships, or wrestling with a raw PSD2 gateway. Whether you hold a personal or a business account, you link it once and then read balances and transactions on your own terms — with a decryption key that never leaves your device.

open-banking.io covers 2,600+ EU and UK banks under one roof. Bordesholmer Sparkasse is one of them, and the connection is zero-knowledge by design: the service stores only your public key, so it can hold your encrypted data but can never read it.

How to connect Bordesholmer Sparkasse Aktiengesellschaft

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 keys are generated locally on your own device.
  2. In the dashboard, pick Bordesholmer Sparkasse Aktiengesellschaft from the bank list and choose your account type — business or personal.
  3. You are redirected to Bordesholmer Sparkasse's own secure login, where you approve access on the bank's PSD2 consent screen.
  4. Your accounts sync back into the dashboard. Consent lasts up to 180 days, after which you simply re-approve with the same flow.

That is the whole connection. No developer redirects the account holder, and nothing about your credentials passes through open-banking.io in readable form.

Access your data

Once the account is connected, 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 you can use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API directly.

Every request sends the X-Api-Key header, and every response is decrypted locally with your own key. An API key alone only ever returns ciphertext — without your private key, the data stays unreadable. The CLI and SDK read and sync connections that already exist; they never create one.

All of this runs for about EUR 3/month.

Do I need a certificate or eIDAS setup?

No. open-banking.io is certificate-free. You connect Bordesholmer Sparkasse through the dashboard and approve access on the bank's own login — no QWAC or QSEALC to manage.

Can open-banking.io read my Bordesholmer Sparkasse transactions?

No. It holds only your public key and stores your data encrypted. Decryption happens on your device with a key only you control.

Which account types are supported?

Both business and personal Bordesholmer Sparkasse accounts, with consent valid for up to 180 days per approval.

Ready to start? Visit open-banking.io.