Kreissparkasse Göppingen API Access & Open Banking

Kreissparkasse Göppingen serves the Fils valley and surrounding Baden-Württemberg communities, and open-banking.io lets you reach its account data without paperwork, eIDAS certificates, or a bank-side developer programme. You link the bank once, and both your business and personal balances and transactions flow into a single encrypted dashboard. Because every record is decrypted on your own device with a key only you hold, open-banking.io never sees your Kreissparkasse Göppingen data in readable form.

How to connect Kreissparkasse Göppingen

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 key pair is generated locally on your device, so the servers only ever store your public key.
  3. In the dashboard, search for Kreissparkasse Göppingen (BIC GOPSDE6GXXX) and choose the account type you want to link — business or personal.
  4. You are redirected to Kreissparkasse Göppingen's own secure login, where you approve access under PSD2. The consent you grant lasts up to 180 days before a simple renewal is needed.
  5. Your approved accounts sync back into the dashboard, ready to view.

Access your data

Reading data programmatically is an optional step for developers, available only after a bank is connected. Open 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 use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Every request carries the X-Api-Key header, and each response is decrypted locally with your own key. An API key on its own returns only ciphertext, which keeps the whole system zero-knowledge. Note the CLI and SDK read and refresh existing links — they never establish a new one; connecting always goes through the dashboard flow above.

Is a certificate or licence required?

No. open-banking.io is certificate-free — no eIDAS QWAC or bank onboarding. You only need an account and your passphrase.

Can open-banking.io staff see my transactions?

No. The service holds just your public key, so data stored on its servers stays encrypted and is only readable after local decryption on your device.

What does it cost?

Access is roughly EUR 3 per month, covering the connection to Kreissparkasse Göppingen and 2,600+ other supported banks.

Start at https://open-banking.io.