Grue Sparebank API Access & Open Banking Data

Grue Sparebank serves customers across the Grue district of Innlandet, and open-banking.io lets you reach your account data there without wrestling with eIDAS certificates or PSD2 licences. It is a certificate-free bridge to 2,600+ European banks: you approve access once, and your balances and transactions flow into a dashboard that only you can decrypt.

Both business and personal Grue Sparebank accounts are supported, and each PSD2 consent lasts up to 180 days before you renew it. Grue Sparebank does not publish a routing BIC through this integration, so there is nothing extra to look up — you select the bank by name.

How to connect Grue 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.
  2. In the dashboard, choose Grue Sparebank and pick the account type you want to link (business or personal).
  3. You are redirected to Grue Sparebank's own secure login, where you approve access on the bank's official consent screen.
  4. Once approved, your accounts sync back into your open-banking.io dashboard and stay current for the 180-day consent window.

Access your data

Reading the data programmatically is an optional developer step you take after the connection exists. 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 use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Every request carries your key in the X-Api-Key header, and each response is decrypted locally with your own key. There is no connect command — the tools only read and sync connections you already authorised.

Because open-banking.io is zero-knowledge, its servers hold only your public key and can never read your Grue Sparebank data. All of this runs for roughly EUR 3/month.

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

No. Data is decrypted on your device with a key only you hold; the service stores ciphertext and your public key.

Can I connect Grue Sparebank with the CLI or an API key?

No. Connecting is done in the dashboard via Grue Sparebank's own login. The CLI and API keys only read existing connections.

How long does access last?

Each consent runs up to 180 days, after which you re-approve on Grue Sparebank's consent screen.

Start at https://open-banking.io.