Finnair Plus Mastercard API Access & Open Banking

Frequent flyers who put spending on the Finnair Plus Mastercard often want that card data outside the card app — in a budgeting tool, a spreadsheet, or a script that tracks award-point-earning purchases. open-banking.io gives you a clean, standardised route to your Finnair Plus Mastercard account information across Norway and the wider EU/UK, with 2,600+ banks reachable through a single service. There are no eIDAS certificates to buy and no compliance paperwork to file: you approve access to your own card, and the data flows to you.

The defining trait is privacy. open-banking.io is zero-knowledge — its servers only ever hold your public key, so the card transactions that pass through are ciphertext to everyone but you. Decryption happens on your device with a private key that never leaves it.

How to connect Finnair Plus Mastercard

Connecting is done entirely in the open-banking.io dashboard — there is no API call, code, or key 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 device, and the private key stays with you.
  3. In the dashboard, search for Finnair Plus Mastercard and choose the personal account type.
  4. You are redirected to Finnair Plus Mastercard's own secure login to approve access under PSD2 — you authenticate on the card issuer's screen, not on open-banking.io.
  5. Once approved, your card account syncs into your dashboard and stays available for up to the 180-day consent window before a refresh is needed.

Access your data

Programmatic access is an optional step for developers, and only after the card is already connected. On the Developers page, create an API key and export a credentials.json — it bundles that API key with your private decryption key. From there the CLI (openbanking accounts, openbanking transactions, openbanking sync), the SDKs, or the REST API all work. Requests carry your key in the X-Api-Key header, and every response is decrypted locally. The API key alone only returns ciphertext; without your private key, nobody — including open-banking.io — can read it.

All of this runs on the standard subscription of roughly EUR 3/month.

Does Finnair Plus Mastercard have a BIC?

No BIC is listed for this card issuer. You don't need one — you select the card directly in the dashboard.

Can I connect a business account?

Only personal account types are supported for the Finnair Plus Mastercard through open-banking.io.

How long does access last?

Each consent is valid for up to 180 days, after which you re-approve on the issuer's login screen to keep syncing.

Ready to start? Visit open-banking.io.