Landessparkasse Oldenburg API & Open Banking Access

Landessparkasse Oldenburg (LzO), BIC SLZODE22XXX, serves the Oldenburg region with both business and personal banking. With open-banking.io you can bring those accounts into one place and, if you're a developer, read them programmatically — without certificates, eIDAS onboarding, or a bank-specific integration project. open-banking.io covers 2,600+ EU and UK banks and is built around a simple promise: your bank data is decrypted locally with a key only you hold. The service is zero-knowledge, so its servers store only your public key and never see your balances or transactions in the clear.

How to connect Landessparkasse Oldenburg

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 keys are generated on your own device from this passphrase, so only you can later decrypt your data.
  3. In the dashboard, pick Landessparkasse Oldenburg and choose the account type you want — business or personal.
  4. You're redirected to Landessparkasse Oldenburg's own secure login and consent screen, where you approve access under PSD2.
  5. Your LzO accounts sync straight into your dashboard.

Consent lasts up to 180 days, after which you simply re-approve on the bank's screen to keep the connection live.

Access your data

Once your Landessparkasse Oldenburg accounts are connected, reading them in code is an optional developer step. From the Developers page, create an API key and export a credentials.json — this bundles the API key together with your private decryption key. Then 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. An API key on its own only ever returns ciphertext — without your private key, nobody, including open-banking.io, can read it.

All of this runs for about EUR 3/month, with no certificate purchase or QWAC/QSEAL setup.

Do I need an eIDAS certificate for Landessparkasse Oldenburg?

No. open-banking.io is certificate-free — you connect through the bank's standard PSD2 consent flow, no certificates required.

Can open-banking.io see my LzO transactions?

No. The platform holds only your public key. Your data is decrypted on your device with a key only you possess.

Can I connect a bank from the CLI?

No. The CLI, SDK, and API only read or sync connections that already exist. Connecting Landessparkasse Oldenburg happens in the dashboard, via the bank's consent screen.

Ready to start? Visit open-banking.io.