Slovenská sporiteľňa API Access & Open Banking Data

Slovenská sporiteľňa is one of Slovakia's largest retail banks, and open-banking.io lets you reach its account and transaction data without wrestling with eIDAS certificates, sandbox onboarding, or a bespoke PSD2 integration. You get a single dashboard for connecting the bank and, when you need it, a clean developer path for pulling the same data into your own tools — all while the decryption key that unlocks your records never leaves your device.

Because open-banking.io is built zero-knowledge and certificate-free, the platform stores only your public key. Everything you sync back from Slovenská sporiteľňa is decrypted locally, so no server — ours included — can read your balances or payments.

How to connect Slovenská sporiteľňa

Connecting happens entirely in the open-banking.io dashboard; there is no API call, code snippet, or key involved in this step.

  1. Sign up for open-banking.io and set your encryption passphrase. Your key pair is generated locally on your own device from that passphrase.
  2. In the dashboard, search for and select Slovenská sporiteľňa (BIC GIBASKBX) and choose the account type you hold — both business and personal accounts are supported.
  3. You are redirected to Slovenská sporiteľňa's own secure login and consent screen, where you approve access under PSD2. Consent lasts up to 180 days, after which you simply re-approve.
  4. Your accounts sync straight into your dashboard, ready to view.

Access your data

Reading data programmatically is an optional step you take after the bank is connected. On the Developers page, create an API key and export a credentials.json — this bundles your 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 directly. Every request carries the X-Api-Key header, and each response is decrypted locally with your own key, so an API key alone only ever returns ciphertext. Note the CLI and SDK read and sync existing connections — they never connect a bank.

All of this runs on flat pricing of roughly EUR 3 per month.

Do I need an eIDAS certificate for Slovenská sporiteľňa?

No. open-banking.io is certificate-free — you approve access on the bank's consent screen and nothing more.

Can open-banking.io see my Slovenská sporiteľňa transactions?

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

Up to 180 days per approval, then you re-confirm on Slovenská sporiteľňa's login screen.

Ready to start? Visit open-banking.io.