Banco Santander API Access & Open Banking Sync

Reading your Banco Santander accounts shouldn't mean juggling eIDAS certificates, sandbox registrations or a PSD2 developer programme. open-banking.io gives you a single dashboard that pulls your Santander balances and transactions into one place — and, when you want it, a clean programmatic path on top. Every byte is decrypted on your own device with a key only you hold, so the service itself never sees your financial data in the clear.

Banco Santander is covered as a Spanish institution (BIC BSCHESMMXXX), supporting both business and personal accounts, with consent lasting up to 180 days before you re-approve.

How to connect Banco Santander

Connecting happens entirely inside 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 keys are generated locally on your device.
  2. In the dashboard, search for Banco Santander and choose the account type you need — business or personal.
  3. You're redirected to Santander's own secure login, where you approve access under PSD2 (valid for 180 days).
  4. Your accounts sync back into the dashboard, ready to view.

That's it — no certificates, no onboarding forms, no waiting on approval.

Access your data

Once Banco Santander is connected, developers can optionally read the data programmatically. Open 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 directly. Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your own key. The API key alone only ever returns ciphertext — without your private key, there's nothing readable to leak.

All of this runs for roughly EUR 3/month, with 2,600+ EU and UK banks supported under the same zero-knowledge, certificate-free model.

FAQ

Do I need a developer account to connect Banco Santander?

No. Connecting is done in the dashboard by approving access on Santander's login screen. API keys are only for the optional read-back step afterwards.

Can open-banking.io see my Santander transactions?

No. The platform holds only your public key. Data is encrypted for you and decrypted on your device — it's zero-knowledge by design.

Up to 180 days per PSD2, after which you simply re-approve access from the dashboard.

Ready to start? Visit open-banking.io.