Stadtsparkasse Haan (Rheinland) Open Banking & API Access

Stadtsparkasse Haan (Rheinland) serves customers across the Bergisches Land with everyday business and personal accounts. If you want a single, private view of those balances and transactions — or a clean way to pull them into your own tooling — open-banking.io links to Stadtsparkasse Haan (Rheinland) under PSD2 and keeps every byte encrypted with a key that never leaves your device.

The bank is reachable by its BIC WELADED1HAA, and both business and personal account types are supported. A single access approval lasts up to 180 days before Stadtsparkasse Haan (Rheinland) asks you to renew it.

How to connect Stadtsparkasse Haan (Rheinland)

Connecting happens entirely inside the open-banking.io dashboard — there is no API call, key, or code involved in this step:

  1. Sign up for open-banking.io and set your encryption passphrase. Your keys are generated locally, so only you can later decrypt your data.
  2. In the dashboard, search for Stadtsparkasse Haan (Rheinland) and choose whether you're linking a business or personal account.
  3. You're redirected to Stadtsparkasse Haan (Rheinland)'s own secure login, where you approve access (PSD2 consent) directly with the bank.
  4. Once approved, your accounts and transactions sync back into the dashboard automatically.

Because you authenticate on the bank's own screen, open-banking.io never sees your Stadtsparkasse Haan (Rheinland) credentials.

Access your data

Reading the data programmatically is an optional step after the connection exists. On the Developers page, create an API key and export a credentials.json — this bundles the API key and your private decryption key. From there:

  • Use the CLI: openbanking accounts, openbanking transactions, openbanking sync.
  • Or call the REST API / an SDK, sending your key in the X-Api-Key header.

Every response arrives encrypted and is decrypted locally with your own key. The CLI and SDK only read and sync connections you've already made — they never create them.

open-banking.io is zero-knowledge and certificate-free: the servers hold only your public key, so an API key alone returns ciphertext, never readable data. Access to 2,600+ EU/UK banks costs roughly EUR 3/month.

Does open-banking.io store my Stadtsparkasse Haan (Rheinland) password?

No. You log in on Stadtsparkasse Haan (Rheinland)'s own consent screen; open-banking.io never receives your banking credentials.

How often do I re-approve access?

PSD2 consent for Stadtsparkasse Haan (Rheinland) lasts up to 180 days, after which you re-approve on the bank's login.

Can I read data without writing code?

Yes. The dashboard shows synced accounts and transactions directly. The API key and credentials.json are only needed for CLI, SDK, or REST access.

Ready to start? Visit open-banking.io.