Hamburger Volksbank API Access & Open Banking

Reach your Hamburger Volksbank accounts through a single, privacy-first layer. open-banking.io links to Hamburger Volksbank eG (BIC GENODEF1HH2) under PSD2, covering both business and personal accounts, so you can pull balances and transactions without scraping screens or juggling bank certificates. Connections are certificate-free, and every figure that lands in your dashboard is decrypted on your own device with a key only you hold.

How to connect Hamburger Volksbank

Connecting happens entirely in 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 keys are generated locally on your device, so the service only ever sees your public key.
  2. In the dashboard, pick Hamburger Volksbank and choose the account type you want to link — business or personal.
  3. You are redirected to Hamburger Volksbank's own secure login, where you approve access (the standard PSD2 consent screen).
  4. Your accounts sync back into the dashboard automatically. Consent lasts up to 180 days, after which you simply reauthorise on the bank's screen.

Access your data

Once a connection is live, developers can optionally read it programmatically. 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 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. The CLI and SDK only read and sync connections you already approved in the dashboard — there is no connect command.

Because open-banking.io is zero-knowledge, its servers store only your public key and can never read or decrypt your Hamburger Volksbank data. All of this runs for around EUR 3/month.

Do I need a developer account to connect?

No. Linking Hamburger Volksbank is done in the dashboard by approving access on the bank's login. API keys are only for the optional programmatic read step afterwards.

What can an API key see on its own?

Without your private decryption key, an API key returns only ciphertext. Readable data requires the local key inside your credentials.json.

How long does access stay active?

Hamburger Volksbank grants consent for up to 180 days. When it expires, reauthorise on the bank's own consent screen to resume syncing.

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