Volksbank im Harz API Access & Open Banking Data

Reach your Volksbank im Harz accounts through a single, privacy-first layer. open-banking.io is a zero-knowledge, certificate-free gateway to 2,600+ EU and UK banks, so you skip the eIDAS certificates and per-bank paperwork that PSD2 integrations usually demand. Volksbank im Harz (BIC GENODEF1OHA) is supported for both business and personal accounts, with consent lasting up to 180 days before you re-approve.

Crucially, your financial data is encrypted with a key that never leaves your device. open-banking.io stores only your public key, so its servers hold ciphertext they cannot read — decryption always happens locally, under your control.

How to connect Volksbank im Harz

Connecting is done entirely in the open-banking.io dashboard — there is no API call, code, or key involved in linking the account.

  1. Sign up for open-banking.io and open the web dashboard.
  2. Set your encryption passphrase. Your key pair is generated on your own device at this step.
  3. In the dashboard, search for Volksbank im Harz and choose the account type — business or personal.
  4. You are redirected to Volksbank im Harz's own secure login and consent screen, where you approve access under PSD2. Your credentials go only to the bank.
  5. Once approved, your accounts and transactions sync back into your dashboard, ready to view.

Access your data

Programmatic access is an optional step you take after the account 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.

Every request carries your key in the X-Api-Key header, and each response is decrypted locally with your private key. Note the CLI and SDK only read and sync connections that already exist — they never create one. And an API key on its own returns ciphertext; without your private key, the data stays unreadable.

All of this runs for roughly EUR 3/month, with no certificate costs.

Do I need an eIDAS certificate for Volksbank im Harz?

No. open-banking.io is certificate-free — you approve access directly on the bank's consent screen.

Can open-banking.io read my Volksbank im Harz data?

No. It is zero-knowledge and holds only your public key. Data is decrypted on your device with a key only you have.

Up to 180 days for Volksbank im Harz, after which you re-approve on the bank's login screen.

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