Volksbank Heimbach API Access & Open Banking Data

Pulling your Volksbank Heimbach balances and transactions into your own tools no longer means wrestling with banking certificates or a lengthy TPP onboarding. open-banking.io gives you PSD2-based access to Volksbank Heimbach (BIC GENODED1HMB) through a single dashboard, covering both business and personal accounts. Every consent runs for up to 180 days before Volksbank Heimbach asks you to re-authorise, and the whole service is zero-knowledge: your data is decrypted on your own device with a key only you hold.

How to connect Volksbank Heimbach

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

  1. Sign up for an open-banking.io account.
  2. Set an encryption passphrase. Your keys are generated locally on your device, so open-banking.io only ever sees your public key.
  3. In the dashboard, search for Volksbank Heimbach and choose the account type you want to link (business or personal).
  4. You are redirected to Volksbank Heimbach's own secure login, where you approve access on the bank's PSD2 consent screen.
  5. Once approved, your accounts sync back into the dashboard and refresh automatically for the life of the consent.

That's the full connection flow. Nothing leaves your control, and no certificate registration is required.

Access your data

Want to read Volksbank Heimbach data programmatically? That's an optional step after the account is already connected. Open the Developers page, create an API key, and export a credentials.json — this bundles your 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. Requests authenticate with the X-Api-Key header, and each response is decrypted locally with your own key. An API key alone only ever returns ciphertext — without your private key the payload stays unreadable, even to open-banking.io.

At roughly EUR 3/month, it's a certificate-free, privacy-first way to work with your own banking data.

Do I need a developer account to connect?

No. Connecting Volksbank Heimbach is done in the dashboard by approving access on the bank's consent screen. API keys are only for reading data afterwards.

Can open-banking.io see my transactions?

No. The service is zero-knowledge and stores only your public key. Decryption happens on your device.

How long does access last?

Volksbank Heimbach grants consent for up to 180 days, after which you re-approve on the bank's login screen.

Ready to start? Visit open-banking.io.