Sparkasse Pforzheim Calw API Access & Open Banking

Sparkasse Pforzheim Calw (BIC PZHSDE66XXX) serves customers across Baden-Württemberg, and open-banking.io gives you a certificate-free way to reach both your business and personal accounts. There are no eIDAS certificates to buy and no bank-specific integration to build — you set up a connection once in the open-banking.io dashboard and your account data flows in, encrypted end to end.

The design is zero-knowledge. Your encryption keys are generated on your own device, so open-banking.io only ever holds your public key. Everything you see is decrypted locally, meaning the service itself can never read your Sparkasse Pforzheim Calw balances or transactions.

How to connect Sparkasse Pforzheim Calw

Connecting happens entirely in the open-banking.io dashboard — no API call, code, or key is involved:

  1. Sign up for open-banking.io and set your encryption passphrase. This generates your personal keys locally on your device.
  2. In the dashboard, search for and select Sparkasse Pforzheim Calw, then choose whether you're linking a business or personal account.
  3. You're redirected to Sparkasse Pforzheim Calw's own secure login, where you approve access under PSD2. Your credentials go only to the bank.
  4. Once you confirm consent, your accounts sync into the dashboard. Consent lasts up to 180 days, after which you simply re-approve on the bank's screen.

Access your data

After the connection exists, developers can optionally read it programmatically. 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 use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your own key. The CLI and SDK only read and sync connections that already exist — they never create one. Without your private key, an API key alone returns nothing but ciphertext.

All of this runs for around EUR 3/month.

Do I need an eIDAS certificate for Sparkasse Pforzheim Calw?

No. open-banking.io is certificate-free — you authorize access directly on the bank's PSD2 consent screen.

Can open-banking.io see my Sparkasse Pforzheim Calw transactions?

No. The service stores only your public key. Data is decrypted on your device, so it stays unreadable to anyone else.

Can I connect a business account?

Yes. Sparkasse Pforzheim Calw supports both business and personal accounts; pick the type when you select the bank in the dashboard.

Start at open-banking.io to link your Sparkasse Pforzheim Calw accounts.