Fynske Bank API Access & Open Banking Integration

Fynske Bank is a Danish regional bank serving customers across Funen, and open-banking.io lets you reach its account data without certificates, national eID gateways, or a signed PSD2 licence of your own. You get a private, encrypted view of your Fynske Bank balances and transactions that only you can unlock — whether you bank personally or run a business.

open-banking.io covers 2,600+ banks across the EU and UK for roughly EUR 3/month. Because it is zero-knowledge, the platform stores only your public key; every figure that reaches your screen is decrypted on your own device with a key nobody else holds.

How to connect Fynske Bank

Connecting happens entirely in 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 key pair is generated locally on your device, so the private half never leaves it.
2. In the dashboard, pick Fynske Bank and choose the account type you need — both business and personal are supported.
3. You are redirected to Fynske Bank's own secure login, where you approve access under PSD2 consent. Your credentials go only to the bank.
4. Your accounts sync back into the open-banking.io dashboard. Consent lasts up to 180 days, after which you simply re-approve on the bank's screen.

Fynske Bank has no BIC listed here, so selecting it by name in the dashboard is the reliable route.

Access your data

Reading data programmatically is an optional developer step you take after the connection above 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. Requests authenticate with the X-Api-Key header, and each response is decrypted locally with your own key. An API key on its own returns only ciphertext — without your private key, there is nothing readable to see. Note the CLI and SDK only read or sync connections that already exist; there is no connect command.

Does open-banking.io ever see my Fynske Bank data?

No. It is zero-knowledge and holds only your public key. Decryption happens on your device, so the servers only ever store ciphertext.

Do I need my own PSD2 certificate for Fynske Bank?

No. open-banking.io is certificate-free — you approve access directly on Fynske Bank's login and skip the licensing overhead entirely.

How long does a connection stay active?

Up to 180 days per consent. When it lapses, re-approve on Fynske Bank's own consent screen to resume syncing.

Start at open-banking.io.