Sörmlands Sparbank API Access & Open Banking

Reaching your Sörmlands Sparbank accounts programmatically usually means chasing PSD2 certificates and per-bank sandboxes. open-banking.io removes that entirely: one certificate-free service that already speaks to Sörmlands Sparbank (BIC SWEDSESS) alongside 2,600+ other European banks. You connect once in a browser, and both business and personal accounts flow into a single dashboard — encrypted end to end, with the decryption key held only on your own device.

Because the platform is zero-knowledge, open-banking.io's servers store just your public key. Balances and transactions are ciphertext to everyone but you, and every consent runs for up to 180 days before Sörmlands Sparbank asks you to re-approve.

How to connect Sörmlands Sparbank

Connecting happens in the dashboard — there is no API call, code, 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, so the passphrase never leaves it.
  2. In the dashboard, pick Sörmlands Sparbank from the bank list and choose the account type you need (business or personal).
  3. You're redirected to Sörmlands Sparbank's own secure login, where you approve access on the bank's PSD2 consent screen.
  4. Once approved, your Sörmlands Sparbank accounts sync straight into your dashboard.

That's the whole connection flow — bank-side authentication only, no developer redirect and nothing to integrate.

Access your data

Reading the data in code is an optional step you take after connecting. From the Developers page, create an API key and export a credentials.json — it bundles the API key together with your private decryption key. Then use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API directly. Every request carries your key in the X-Api-Key header, and each response is decrypted locally with your private key. The CLI and SDK only read and sync connections that already exist — they never create one.

All of this runs for roughly EUR 3/month, with no eIDAS certificate and no bank sandbox to register for.

Do I need a PSD2 certificate for Sörmlands Sparbank?

No. open-banking.io is certificate-free — approving access on Sörmlands Sparbank's consent screen is all that's required.

Can open-banking.io see my Sörmlands Sparbank balances?

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

Does an API key alone return my transactions?

No. An API key retrieves ciphertext only. Readable data requires your private decryption key, which lives in your credentials.json locally.

Start accessing your Sörmlands Sparbank data at open-banking.io.