Sparkasse Bonndorf-Stühlingen Open Banking Access

Sparkasse Bonndorf-Stühlingen serves the southern Black Forest around Bonndorf and Stühlingen, and open-banking.io lets you reach its account data without certificates, screen-scraping, or building your own PSD2 stack. Whether you hold a personal current account or run a business relationship (BIC SOLADES1BND), you can bring balances and transaction history into one encrypted dashboard — and only you can read it.

The service covers 2,600+ EU and UK banks. What sets it apart is the trust model: your encryption keys are generated on your own device, so open-banking.io only ever holds your public key. Data flows through it as ciphertext and is decrypted locally, where you sit.

How to connect Sparkasse Bonndorf-Stühlingen

Connecting happens entirely in 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 an encryption passphrase. Your private key is created on your device and never leaves it.
  2. In the dashboard, choose Sparkasse Bonndorf-Stühlingen and select the account type you want — business or personal.
  3. You are redirected to Sparkasse Bonndorf-Stühlingen's own secure login, where you approve access under PSD2 consent — the same screen you already trust for online banking.
  4. Once approved, your accounts sync back into the dashboard automatically.

Consent lasts up to 180 days, after which you simply re-approve on the bank's screen to keep the connection live.

Access your data

Reading the data programmatically is an optional developer step you take after the account is connected. 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.

Every request carries the X-Api-Key header, and every response is decrypted locally with your own key. The API key alone returns only ciphertext — without your private key, nobody, including open-banking.io, can read a single transaction. The CLI and SDK only read and sync connections that already exist; they never create them.

All of this runs for roughly EUR 3/month.

FAQ

Do I need a developer account to use Sparkasse Bonndorf-Stühlingen?

No. Connecting and viewing accounts works entirely in the dashboard. API keys and credentials.json are only for developers who want programmatic access afterward.

Can open-banking.io see my Sparkasse Bonndorf-Stühlingen transactions?

No. The service is zero-knowledge and holds only your public key. Your data is decrypted on your own device with a key only you control.

How long does access to my account last?

Sparkasse Bonndorf-Stühlingen grants consent for up to 180 days. When it expires, re-approve on the bank's own login screen to continue syncing.

Ready to start? Visit open-banking.io.