Lillestrøm Sparebank API Access & Open Banking Data

Lillestrøm Sparebank (now trading as Romerike Sparebank) is a local Norwegian savings bank rooted in the Romerike region. With open-banking.io you can reach its account and transaction data through a single PSD2 connection — no eIDAS certificate, no bank-specific integration project, and no data ever leaving your control in readable form. open-banking.io covers 2,600+ EU/UK banks and keeps everything private with client-side encryption.

Both business and personal accounts at Lillestrøm Sparebank are supported. Each authorisation lasts up to 180 days before you re-approve, and no BIC is required to set up the link.

How to connect Lillestrøm Sparebank

Connecting happens entirely inside 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 locally on your own device, so only you can later decrypt anything.
  2. In the dashboard, search for and select Lillestrøm Sparebank, then choose the account type (business or personal).
  3. You are redirected to Lillestrøm Sparebank's own secure login and consent screen, where you approve access directly with the bank (standard PSD2 flow).
  4. Once approved, your accounts and balances sync back into your open-banking.io dashboard automatically.

That's the whole connection process — done through the bank's own login, never by handing credentials to anyone else.

Access your data

Reading the data programmatically is an optional developer step after connecting. 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. 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, the data stays unreadable, which is what makes the service genuinely zero-knowledge.

All of this runs at roughly EUR 3/month, certificate-free.

Does open-banking.io ever see my Lillestrøm Sparebank data?

No. Servers hold only your public key. Data is decrypted on your device, so open-banking.io cannot read it.

Can I connect the bank from the CLI?

No. Connecting is a dashboard-only flow. The CLI and SDK only read or sync connections you have already approved.

How long does access last?

Up to 180 days per consent, after which you re-approve on Lillestrøm Sparebank's login screen.

Start at open-banking.io.