PSD Bank Hannover API Access & Open Banking Data

Retrieving account data from PSD Bank Hannover no longer means wrestling with bank-specific certificates or a stack of PSD2 paperwork. open-banking.io gives you a single, unified way to reach your PSD Bank Hannover accounts (BIC GENODEF1P09) across both business and personal products, with every byte of financial data decrypted on your own machine using a key that never leaves your device.

Whether you are building cash-flow tooling, reconciling ledgers, or simply want a clean export, the workflow is the same: connect once in the dashboard, then read the data however you like.

How to connect PSD Bank Hannover

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 an open-banking.io account.
  2. Set an encryption passphrase. Your cryptographic keys are generated locally, on your own device, so only you can ever unlock the data.
  3. In the dashboard, search for and select PSD Bank Hannover, then choose the account type you need — business or personal.
  4. You are redirected to PSD Bank Hannover's own secure login and consent screen, where you approve access directly with the bank (standard PSD2 consent).
  5. Your approved accounts sync back into your dashboard automatically. A single consent stays valid for up to 180 days before you renew it.

Access your data

Once PSD Bank Hannover is connected, developers can optionally read the data programmatically. 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, use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Every request authenticates with the X-Api-Key header, and each response is decrypted locally with your own key. The CLI and SDK only read and sync connections you already established in the dashboard — there is no connect command.

Because open-banking.io is zero-knowledge, its servers hold only your public key. Even we cannot read or decrypt your PSD Bank Hannover statements. It is also certificate-free, and the whole service costs around EUR 3/month.

Is a QWAC or eIDAS certificate required?

No. open-banking.io is certificate-free — you approve access on PSD Bank Hannover's consent screen and nothing else.

Can open-banking.io see my transactions?

No. Data is decrypted locally with a key only you hold; our servers store only ciphertext and your public key.

How long does access last?

PSD Bank Hannover consent lasts up to 180 days, after which you re-approve from the dashboard.

Ready to start? Visit https://open-banking.io.