Bankhaus Ellwanger & Geiger Open Banking & API Access

Bankhaus Ellwanger & Geiger is a private bank rooted in Stuttgart, and open-banking.io gives you a clean, standards-based route to your own account data there. Whether you run a company treasury or simply want your personal balances in one place, open-banking.io reads Bankhaus Ellwanger & Geiger accounts under PSD2 and keeps the numbers encrypted end to end. There are no eIDAS certificates to buy and no banking gateway to operate — you sign up, approve access, and your data flows in.

Because open-banking.io is zero-knowledge, the encryption keys that unlock your Bankhaus Ellwanger & Geiger transactions are generated on your own device. The service only ever holds your public key, so it can store ciphertext but never read it.

How to connect Bankhaus Ellwanger & Geiger

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

  1. Create an open-banking.io account and set an encryption passphrase. Your private key is derived locally and never leaves your device.
  2. In the dashboard, search for Bankhaus Ellwanger & Geiger (BIC ELGEDES1XXX) and choose the account type you need — business or personal.
  3. You are redirected to Bankhaus Ellwanger & Geiger's own secure login, where you approve the PSD2 consent directly with the bank.
  4. Once approved, your accounts sync back into the dashboard. Consent lasts up to 180 days, after which you simply reauthorise from the same screen.

Access your data

After a connection exists, 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 API key alone returns only ciphertext; without your private key the data stays unreadable. Note that the CLI and SDK only read and sync connections you already made in the dashboard — there is no connect command.

FAQ

Do I need an eIDAS certificate to access Bankhaus Ellwanger & Geiger?

No. open-banking.io is certificate-free. You approve access on the bank's own consent screen and skip the usual PSD2 licensing overhead entirely.

Can open-banking.io read my Bankhaus Ellwanger & Geiger transactions?

No. The platform is zero-knowledge and holds only your public key. Data is decrypted on your device with a private key that only you possess.

What does it cost?

Around EUR 3 per month, covering access to Bankhaus Ellwanger & Geiger and 2,600+ other EU and UK banks.

Ready to start? Connect Bankhaus Ellwanger & Geiger at https://open-banking.io.