Sparkasse Trier API Access & Open Banking Data

Reaching your Sparkasse Trier accounts programmatically usually means certificates, sandbox registrations and PSD2 paperwork. open-banking.io removes all of that. It links to Sparkasse Trier (BIC TRISDE55XXX) as one of 2,600+ supported EU and UK banks, syncing your business and personal account data into a single dashboard — and everything is decrypted locally with a key only you hold.

Because it is zero-knowledge and certificate-free, open-banking.io never stores anything it could read: its servers keep only your public key, so the balances and transactions flowing back from Sparkasse Trier stay ciphertext until they reach your device. All of this runs for around EUR 3/month.

How to connect Sparkasse Trier

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 an encryption passphrase. Your keys are generated on your own device.
  2. In the dashboard, search for Sparkasse Trier and choose the account type you want — business or personal.
  3. You are redirected to Sparkasse Trier's own secure login, where you approve access (the PSD2 consent screen).
  4. Your accounts sync back into the dashboard. That consent stays valid for up to 180 days, after which you simply re-approve on the bank's page.

Access your data

Once Sparkasse Trier is connected, developers can optionally read the data outside the dashboard. 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 you already made in the dashboard — there is no connect command, and an API key alone returns only ciphertext without your private key.

Do I need a certificate or PSD2 licence?

No. open-banking.io handles the regulated connection. You only approve access on Sparkasse Trier's consent screen — no eIDAS certificate required.

Can open-banking.io read my Sparkasse Trier data?

No. It is zero-knowledge and holds only your public key. Decryption happens on your device with a key that never leaves it.

How long does access last?

Sparkasse Trier grants consent for up to 180 days. When it expires, re-approve in the dashboard to keep syncing.

Start at open-banking.io.