Donner & Reuschel API Access & Open Banking Data

Donner & Reuschel is a Hamburg-rooted private bank, and open-banking.io gives you a certificate-free path to its account data across the EU and UK. Instead of chasing a PSD2 licence or wrestling with eIDAS certificates, you approve access once and pull balances and transactions for both business and personal accounts. Everything is encrypted on your own device with a passphrase only you hold, so open-banking.io stores your public key and nothing it can read.

How to connect Donner & Reuschel

Connecting happens entirely inside 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, so the service never sees your private key.
  2. In the dashboard, search for Donner & Reuschel (BIC CHDBDEHHXXX) and choose the account type you hold — business or personal.
  3. You are redirected to Donner & Reuschel's own secure login, where you approve the PSD2 consent directly with the bank.
  4. Your approved accounts then sync back into your dashboard automatically.

Each consent lasts up to 180 days, the regulatory maximum, after which you simply re-approve on Donner & Reuschel's screen to keep the data flowing.

Access your data

Once an account is connected, developers can optionally read it programmatically. Open 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, or openbanking sync.
  • Or call the REST API / an SDK, sending your key in the X-Api-Key header.

Every response arrives encrypted and is decrypted locally with your own key. An API key alone only ever returns ciphertext — without your private key there is nothing readable, which is what makes the design genuinely zero-knowledge. The CLI and SDK only read and sync connections you already approved; they never create one.

All of this runs at around EUR 3/month, with no certificate paperwork and access to 2,600+ banks.

Does open-banking.io ever see my Donner & Reuschel data?

No. Data is decrypted on your device with a key only you hold; the servers keep only your public key.

Which Donner & Reuschel accounts are supported?

Both business and personal accounts, identified by BIC CHDBDEHHXXX.

Up to 180 days per approval, then you re-confirm on Donner & Reuschel's login screen.

Start at open-banking.io.