Sparda-Bank Baden-Württemberg Open Banking & API Access

Sparda-Bank Baden-Württemberg (BIC GENODEF1S02) is a member-owned cooperative bank rooted in Stuttgart and serving savers across the region. If you want a clean, private way to pull your Sparda-Bank Baden-Württemberg balances and transactions into your own tools, open-banking.io links to the bank under PSD2 and keeps the data readable only by you. It covers 2,600+ banks across the EU and UK, needs no eIDAS certificate, and supports both business and personal accounts with a consent window of up to 180 days.

The key difference is where trust sits. open-banking.io is zero-knowledge: your encryption keys are generated on your own device from a passphrase you choose, and the service only ever holds your public key. Everything you read is decrypted locally.

How to connect Sparda-Bank Baden-Württemberg

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 private key is created locally and never leaves your device.
  2. In the dashboard, search for and select Sparda-Bank Baden-Württemberg, then choose the account type (business or personal).
  3. You are redirected to Sparda-Bank Baden-Württemberg's own secure login, where you approve access on the bank's PSD2 consent screen.
  4. Once approved, your accounts sync back into the dashboard. The consent stays valid for up to 180 days, after which you simply re-approve.

Access your data

Reading the data programmatically is an optional developer step that comes after the connection exists. 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 you can use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API directly. Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your own key. An API key alone only ever returns ciphertext, because open-banking.io's servers cannot decrypt anything. Note that the CLI and SDK read and sync existing connections — they do not connect banks.

At around EUR 3/month, it's an affordable, certificate-free route to your own banking data.

Does open-banking.io see my Sparda-Bank Baden-Württemberg data?

No. It is zero-knowledge and holds only your public key; decryption happens on your device with a key only you have.

Which account types are supported?

Both business and personal Sparda-Bank Baden-Württemberg accounts, with consent lasting up to 180 days.

How do I connect without an API key?

You don't need one to connect. You approve access on Sparda-Bank Baden-Württemberg's login screen from the dashboard; API keys are only for reading data afterwards.

Ready to start? Visit open-banking.io.