Hønefoss Sparebank API Access & Open Banking Data

Reaching your Hønefoss Sparebank accounts programmatically usually means chasing certificates, sandbox registrations and PSD2 paperwork. open-banking.io removes all of that. It links to Hønefoss Sparebank on your behalf across 2,600+ EU/UK banks, keeps a copy of your account and transaction history in sync, and hands you the tools to read it — while the raw data stays encrypted with a key that never leaves your device.

Hønefoss Sparebank supports both business and personal account types, and a single approval grants up to 180 days of access before you need to renew. No BIC is required to get started; you simply select the bank by name.

How to connect Hønefoss Sparebank

Connecting happens entirely inside the open-banking.io dashboard — there is no API call, key or code involved in this step:

  1. Sign up for an open-banking.io account.
  2. Set an encryption passphrase. Your key pair is generated locally on your own device, so only you can later decrypt what you fetch.
  3. In the dashboard, search for Hønefoss Sparebank and choose whether you're linking a business or personal account.
  4. You're redirected to Hønefoss Sparebank's own secure login and consent screen, where you approve access directly with the bank (standard PSD2 flow).
  5. Once approved, your accounts and balances sync back into your dashboard automatically.

That's the whole connection. Nothing about your credentials ever passes through open-banking.io.

Access your data

Once Hønefoss Sparebank is linked, developers can optionally read the data outside the dashboard. On the Developers page, create an API key and export a credentials.json — this bundles the API key with your private decryption key. From there:

  • Use the CLI: openbanking accounts, openbanking transactions, openbanking sync.
  • Or call the REST API / an SDK, sending your key in the X-Api-Key header.

Every response comes back encrypted and is decrypted locally with your private key. The API key alone only ever returns ciphertext — the servers hold just your public key and can never read your balances.

This certificate-free, zero-knowledge design costs around EUR 3/month, with no bank-by-bank onboarding.

Does open-banking.io see my Hønefoss Sparebank data?

No. It stores only your public key and encrypted blobs; decryption happens on your device with a key only you hold.

Can the CLI connect Hønefoss Sparebank for me?

No. Linking is done once in the dashboard via the bank's consent screen. The CLI, SDK and API only read or sync connections that already exist.

How long does access last?

Up to 180 days per approval. When it expires, re-approve on Hønefoss Sparebank's consent screen to keep syncing.

Start at open-banking.io.