Sölvesborg-Mjällby Sparbank API & Open Banking Access

Reaching your Sölvesborg-Mjällby Sparbank accounts programmatically usually means TPP licences, eIDAS certificates and a PSD2 sandbox. open-banking.io removes all of that. It is a zero-knowledge, certificate-free service covering 2,600+ banks across the EU and UK, so you get a clean path to Sölvesborg-Mjällby Sparbank (BIC SWEDSESS) balances and transactions for both business and personal accounts — without running any of the regulated infrastructure yourself.

The key difference is where your data is readable. open-banking.io stores only your public key, so its servers can never decrypt what they hold. Everything is decrypted locally, on your own device, with a key that never leaves you.

How to connect Sölvesborg-Mjällby Sparbank

Connecting happens entirely in 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 your encryption passphrase. Your keys are generated right there on your device.
  2. In the dashboard, pick Sölvesborg-Mjällby Sparbank and choose the account type you need (business or personal).
  3. You are redirected to Sölvesborg-Mjällby Sparbank's own secure login, where you approve access under PSD2. open-banking.io never sees your bank credentials.
  4. Your accounts sync back into the dashboard. The consent lasts up to 180 days, after which you simply re-approve on the bank's screen.

Access your data

Once a connection exists, reading it programmatically is an optional developer step. 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 you can use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API directly.

Every request carries your 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, the data stays unreadable. There is no connect command; the CLI and SDK only read and sync connections you already made in the dashboard.

All of this runs at around EUR 3/month, with no certificates and no bank-side onboarding.

Do I need an eIDAS certificate?

No. open-banking.io is certificate-free — you connect Sölvesborg-Mjällby Sparbank straight from the dashboard by approving access on the bank's login.

Can open-banking.io read my transactions?

No. It is zero-knowledge and holds only your public key. Your data is decrypted on your device with a key only you hold.

How long does access last?

Sölvesborg-Mjällby Sparbank consent runs up to 180 days per approval, then you re-confirm on the bank's own consent screen.

Start at open-banking.io.