Maritime og Merchant Bank API Access & Open Banking

Maritime og Merchant Bank is an Oslo-based niche bank focused on ship finance, and open-banking.io gives you a clean, certificate-free path to your account data there. There is no bank sandbox to register for, no eIDAS certificate to buy, and no OAuth app to configure — you approve access once on the bank's own login, and your accounts flow into a dashboard that only you can decrypt. Both business and personal Maritime og Merchant Bank accounts are supported.

How to connect Maritime og Merchant Bank

Connecting happens entirely inside the open-banking.io dashboard — never through an API call or key:

  1. Sign up for open-banking.io and set an encryption passphrase. Your keys are generated locally on your device, so nobody else (including open-banking.io) ever holds them.
  2. In the dashboard, search for Maritime og Merchant Bank and choose the account type you want to link — business or personal.
  3. You're redirected to Maritime og Merchant Bank's own secure login, where you authenticate and approve access under PSD2. Consent lasts up to 180 days, after which you simply re-approve.
  4. Your accounts and transactions sync straight into your dashboard, already encrypted to your key.

That's the whole flow. No code, no developer redirect, and no connect command exist — approval always takes place on the bank's screen.

Access your data

Once Maritime og Merchant Bank is linked, developers can optionally read the data programmatically. Open the Developers page, create an API key, and download a credentials.json — it bundles the API key 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 on your machine — the servers only ever store ciphertext against your public key.

Maritime og Merchant Bank publishes no dedicated BIC for this integration (BIC: n/a), so identify accounts by their IBAN once synced. Pricing is roughly EUR 3/month for the full zero-knowledge service.

FAQ

Do I need a certificate or developer account with Maritime og Merchant Bank?

No. open-banking.io is certificate-free — you only approve PSD2 access on the bank's login screen.

Can open-banking.io read my Maritime og Merchant Bank data?

No. It's zero-knowledge: data is decrypted only on your device with a key that never leaves it.

What happens after 180 days?

Consent expires at the 180-day maximum; re-approve in the dashboard to keep syncing.

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