Donau-Iller Bank API Access & Open Banking Data

Reaching your Donau-Iller Bank accounts programmatically usually means wrestling with eIDAS certificates and a PSD2 sandbox. open-banking.io removes that entirely: it is a certificate-free bridge to Donau-Iller Bank eG (BIC GENODES1EHI) and 2,600+ other EU and UK institutions. You approve access once, and both your business and personal accounts sync into a dashboard where every figure is decrypted on your own device with a key that never leaves it.

That local-only design is the point. open-banking.io is zero-knowledge — its servers hold only your public key, so they store ciphertext and never see a balance or a transaction in the clear.

How to connect Donau-Iller Bank

Connecting happens in the open-banking.io dashboard, not through any API call or code:

1. Sign up at open-banking.io and set your encryption passphrase — your key pair is generated right there on your device.
2. In the dashboard, search for Donau-Iller Bank and choose the account type you need (business or personal).
3. You are redirected to Donau-Iller Bank's own secure login, where you approve the PSD2 consent directly with the bank.
4. Control returns to your dashboard and your selected accounts begin syncing.

No API key, endpoint, or developer redirect is part of this step — it is a straightforward bank-hosted approval. Consent lasts up to 180 days, after which you simply repeat the approval to keep the data flowing.

Access your data

Once Donau-Iller Bank is linked, reading it in code is an optional developer step. On the Developers page, create an API key and export a credentials.json that bundles that key with your private decryption key. From there the CLI covers the essentials — openbanking accounts, openbanking transactions, openbanking sync — alongside the SDKs and REST API. Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your own key. An API key on its own only ever returns ciphertext; without your private key, the data stays unreadable. The CLI and SDKs read and refresh existing connections — they never create them.

All of this runs at around EUR 3/month.

Do I need a PSD2 certificate for Donau-Iller Bank?

No. open-banking.io is certificate-free — the consent you grant on Donau-Iller Bank's login screen is all that is required.

Can open-banking.io read my Donau-Iller Bank data?

No. It is zero-knowledge and holds only your public key, so it stores encrypted data it cannot decrypt.

Does the CLI connect my bank?

No. Connecting is done in the dashboard via the bank's own login. The CLI and SDK only read and sync accounts you have already linked.

Start at open-banking.io.