Abanca API Access & Open Banking Integration

Abanca is one of Spain's largest banking groups, and open-banking.io lets you reach its account and transaction data without wrestling with certificates, screen-scraping, or a bank sandbox. open-banking.io covers 2,600+ EU and UK banks under one roof, and every byte of your Abanca data is decrypted locally on your own device with a key that never leaves it. That is the zero-knowledge promise: the service stores only your public key, so nobody at open-banking.io — or anywhere else — can read your balances or payments.

Abanca (BIC CAGLESMMXXX) supports both business and personal accounts, and a single authorisation stays valid for up to 180 days before you renew it.

How to connect Abanca

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 cryptographic keys are generated right there on your device.
  2. In the dashboard, search for and select Abanca, then choose whether you're linking a business or personal account.
  3. You're redirected to Abanca's own secure login, where you approve access under PSD2 consent — your credentials only ever touch the bank.
  4. Once approved, your Abanca accounts sync straight back into your dashboard, ready to view.

Access your data

Reading Abanca data programmatically is an optional developer step you take after the connection 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 you can use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API directly. Every request carries the X-Api-Key header, and each response is decrypted locally with your own key. An API key on its own only ever returns ciphertext — without your private key, the data stays unreadable.

All of this runs for roughly EUR 3/month.

Does connecting Abanca require certificates or a developer account?

No. It's certificate-free — you approve access on Abanca's own login screen from the dashboard.

Can open-banking.io see my Abanca transactions?

No. It's zero-knowledge: only your public key is stored, and decryption happens on your device.

Up to 180 days, after which you re-authorise from the dashboard.

Ready to start? Visit open-banking.io.