Banque Transatlantique API Access & Open Banking

Banque Transatlantique is a French private bank serving both business and personal clients, and open-banking.io lets you reach its account and transaction data without certificates, screen-scraping, or a bespoke integration. You keep the keys: every figure that lands in your dashboard was encrypted on your own device, so open-banking.io stores only your public key and never sees the plaintext behind your Banque Transatlantique balances.

Because the platform speaks the shared PSD2 rails across 2,600+ EU and UK banks, adding Banque Transatlantique looks the same as adding any other institution — no BIC lookup is required here (Banque Transatlantique's BIC is not published for this flow), and consent runs for up to 180 days before you re-approve.

How to connect Banque Transatlantique

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 key pair is generated locally on your device.
  2. In the dashboard, search for and select Banque Transatlantique, then choose the account type — business or personal.
  3. You are redirected to Banque Transatlantique's own secure login and consent screen, where you approve access directly with the bank.
  4. Once approved, your accounts sync back into your dashboard and refresh automatically.

Your credentials are only ever entered on Banque Transatlantique's site — open-banking.io never touches them.

Access your data

Reading the data programmatically is an optional step for developers, taken only after the connection above exists. 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), an SDK, or the REST API. Requests carry the X-Api-Key header, and each response is decrypted locally with your own key. An API key on its own returns only ciphertext — the readable numbers appear solely on your machine.

All of this runs for roughly EUR 3/month.

Does open-banking.io see my Banque Transatlantique data?

No. It is zero-knowledge: the service holds only your public key, and decryption happens on your device.

Do I need a developer account to connect?

No. Connecting is a dashboard-only flow. API keys and credentials.json are only for optionally reading data afterwards.

How long does access last?

Up to 180 days per consent, after which you re-approve on Banque Transatlantique's consent screen.

Start at open-banking.io.