Sparkasse am Niederrhein API Access & Open Banking

Reaching account data at Sparkasse am Niederrhein no longer means wrestling with bank-issued eIDAS certificates or a corporate PSD2 sandbox. open-banking.io gives you a clean, standardised view of your Sparkasse am Niederrhein balances and transactions — covering both business and personal accounts — while keeping the plumbing entirely out of your way. The bank is identified by BIC WELADED1MOR, and every consent you grant runs for up to 180 days before a quick renewal is needed.

What makes this different is the trust model. open-banking.io is zero-knowledge: your encryption keys are generated on your own device from a passphrase only you know, and the service stores just your public key. It can route ciphertext, but it can never read your Sparkasse am Niederrhein data. That is also why no certificate of your own is ever required.

How to connect Sparkasse am Niederrhein

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 your encryption passphrase. Your private decryption key is created locally, on your device.
  2. In the dashboard, search for and select Sparkasse am Niederrhein, then choose the account type you need — business or personal.
  3. You are redirected to Sparkasse am Niederrhein's own secure login and consent screen, where you approve access directly with the bank (standard PSD2 flow).
  4. Once approved, your accounts sync back into your dashboard, ready to view.

You never hand your banking credentials to open-banking.io — authentication stays on the bank's own pages.

Access your data

Programmatic access is an optional step, and only after a 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. Requests authenticate with the X-Api-Key header, and each response is decrypted locally with your own key. An API key alone only ever returns ciphertext; without your private key there is nothing readable to see. The CLI and SDK read and sync existing connections — they cannot create one.

Is a bank certificate required?

No. open-banking.io is certificate-free — you only set a passphrase.

Can open-banking.io see my Sparkasse am Niederrhein transactions?

No. It holds only your public key; decryption happens on your device.

What does it cost?

Around EUR 3 per month for full access across supported banks.

Get started at open-banking.io.