ING Bank Śląski Open Banking API Access (Poland)

Reaching your ING Bank Śląski accounts programmatically usually means chasing eIDAS certificates and PSD2 sandbox paperwork. open-banking.io removes that: it links to ING Bank Śląski (BIC INGBPLPW) on your behalf and hands you clean, decrypted data — with no certificates to buy and no bank credentials ever passing through us. Both business and personal ING Bank Śląski accounts are supported, and a single consent stays valid for up to 180 days before you re-approve.

Data is decrypted locally with a key that never leaves your device. open-banking.io stores only your public key, so the service is genuinely zero-knowledge — the servers hold ciphertext they cannot read.

How to connect ING Bank Śląski

Connecting happens entirely inside the open-banking.io dashboard — there is no API call, code, or key at this stage.

  1. Sign up at open-banking.io and set your encryption passphrase; your key pair is generated right there in your browser.
  2. In the dashboard, pick ING Bank Śląski and choose the account type (business or personal).
  3. You are redirected to ING Bank Śląski's own secure login, where you approve access under PSD2.
  4. Control returns to your dashboard and your accounts sync automatically.

You authenticate only on ING Bank Śląski's screens — open-banking.io never sees your banking password.

Access your data

Once ING Bank Śląski is connected, developers can optionally read the data in code. On the Developers page, create an API key and export a credentials.json — it bundles the API key with your private decryption key. Then use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API directly. Requests send the X-Api-Key header, and every response is decrypted locally with your own key. An API key on its own only returns ciphertext — readable data requires the private key you hold.

All of this runs at roughly EUR 3/month, covering ING Bank Śląski and 2,600+ other EU/UK banks.

Do I connect ING Bank Śląski with an API key?

No. Connecting is done in the dashboard by approving access on ING Bank Śląski's login screen. API keys only read data you have already connected.

Can open-banking.io read my ING Bank Śląski transactions?

No. The service is zero-knowledge and holds only your public key. Decryption happens on your device.

Up to 180 days, after which you re-approve access on ING Bank Śląski's consent screen.

Start at open-banking.io.