Triodos Bank API Access & Open Banking Data | Belgium

Triodos Bank (Belgium) is one of Europe's best-known sustainable banks, and open-banking.io lets you reach its account data without wrestling with eIDAS certificates or PSD2 sandboxes. As part of a network of 2,600+ EU and UK banks, Triodos connects through the same secure, standards-based flow — but with one difference that matters: your data is decrypted on your own device, using a key that never leaves it. open-banking.io holds only your public key, so it can carry ciphertext but can never read a single transaction.

Whether you hold a business or personal account with Triodos (BIC TRIOBEBB), the setup is the same, and access lasts up to the regulatory maximum of 180 days per consent before you re-approve.

How to connect Triodos 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 open the dashboard.
  2. Set your encryption passphrase. Your key pair is generated locally, right in your browser, and the private key stays with you.
  3. Pick Triodos Bank from the bank list and choose your account type (business or personal).
  4. You're redirected to Triodos Bank's own secure login, where you approve access on the bank's PSD2 consent screen — your credentials only ever touch Triodos.
  5. Your accounts sync back into your dashboard, encrypted to your public key.

That's the whole connection. No developer redirect, no client secret, nothing to host.

Access your data

Once Triodos is connected, reading the data programmatically is an optional developer step. On the Developers page, create an API key and export a credentials.json — this bundles your API key and 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 with your own key. An API key on its own only ever returns ciphertext — without your private key, there is nothing readable to see.

FAQ

Do I need an eIDAS or QWAC certificate for Triodos Bank?

No. open-banking.io is certificate-free. The regulated connection is handled for you; you just approve access on Triodos Bank's consent screen.

Can open-banking.io staff see my Triodos transactions?

No. The service is zero-knowledge and stores only your public key. Data is decrypted on your device with a private key only you hold.

How much does it cost?

Around EUR 3/month covers access across all supported banks, including Triodos Bank Belgium.

Ready to start? Visit open-banking.io.