Vereinigte Sparkasse im Märkischen Kreis Open Banking

Pulling your Vereinigte Sparkasse im Märkischen Kreis balances and transactions into your own tools shouldn't mean handing a third party the keys to your finances. open-banking.io links this NRW Sparkasse (BIC WELADED1PLB) through regulated PSD2 access while keeping the data encrypted with a key that never leaves your device. Both business and personal accounts are supported, and a single consent stays valid for up to 180 days before you renew it.

There are no eIDAS certificates to buy, no bank sandbox to register for, and no server that can read what you sync. open-banking.io holds only your public key, so everything it stores about your accounts is ciphertext until you decrypt it yourself.

How to connect Vereinigte Sparkasse im Märkischen Kreis

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

  1. Sign up for open-banking.io and set an encryption passphrase. Your key pair is generated locally, on your own device.
  2. In the dashboard, search for Vereinigte Sparkasse im Märkischen Kreis and choose the account type you need — business or personal.
  3. You're redirected to Vereinigte Sparkasse im Märkischen Kreis's own secure login, where you approve access on the bank's PSD2 consent screen.
  4. Once approved, your accounts sync back into the dashboard and stay refreshed for the life of the 180-day consent.

Access your data

Reading the data programmatically is an optional step you take after the bank is connected. 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. Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your own key. The CLI and SDK only read and sync connections that already exist — they never establish one. Without your private key, an API key alone returns nothing but ciphertext.

All of this runs on the flat ~EUR 3/month plan that covers 2,600+ EU and UK banks.

Do I need a developer certificate to connect?

No. open-banking.io is certificate-free — you approve access on Vereinigte Sparkasse im Märkischen Kreis's own consent screen and nothing else is required.

Can open-banking.io see my account data?

No. The service is zero-knowledge and stores only your public key. Data is decrypted on your device with a key only you hold.

Up to 180 days per approval, after which you simply re-confirm access with Vereinigte Sparkasse im Märkischen Kreis to keep syncing.

Get started at open-banking.io.