Sparkasse Donauwörth API Access & Open Banking

Pulling account data out of Sparkasse Donauwörth used to mean chasing PSD2 certificates and building an integration from scratch. open-banking.io removes that overhead. Point it at Sparkasse Donauwörth (BIC BYLADEM1DON) and you get a clean, synced view of your business and personal accounts — with every byte of that data decrypted locally using a key that never leaves your device.

The service reaches 2,600+ EU and UK banks, so once Sparkasse Donauwörth is linked you can add other institutions under the same roof without a single certificate or bank-specific project.

How to connect Sparkasse Donauwörth

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 right there on your own device.
2. In the dashboard, search for Sparkasse Donauwörth and choose the account type you need — business or personal.
3. You're redirected to Sparkasse Donauwörth's own secure login, where you approve access under standard PSD2 consent. That consent lasts up to 180 days before you renew it.
4. Your approved accounts sync straight back into the dashboard, ready to view.

That's the whole flow. You never hand credentials to open-banking.io — the bank authenticates you directly.

Access your data

Want Sparkasse Donauwörth data in your own code? That's an optional step for developers, taken after the connection above already exists. Open the Developers page, create an API key, and export a credentials.json bundling that 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 carry the X-Api-Key header, and every response is decrypted locally with your key. The CLI and SDK only read and sync connections that already exist — they never create one.

Because open-banking.io is zero-knowledge, its servers hold only your public key. An API key on its own returns ciphertext; without your private key, nobody — not even open-banking.io — can read your Sparkasse Donauwörth transactions. All of this runs at around EUR 3/month.

Do I need a PSD2 certificate for Sparkasse Donauwörth?

No. open-banking.io is certificate-free. You approve access on Sparkasse Donauwörth's own consent screen and nothing more.

Which Sparkasse Donauwörth accounts can I link?

Both business and personal accounts held at Sparkasse Donauwörth (BIC BYLADEM1DON) are supported.

Can open-banking.io see my transactions?

No. Data is decrypted locally with a key only you hold; the service stores only your public key.

Ready to start? Visit open-banking.io.