Caja Rural del Sur API Access & Open Banking

Reaching your Caja Rural del Sur accounts programmatically shouldn't mean wrestling with eIDAS certificates or standing up your own PSD2 gateway. open-banking.io gives you a single, encrypted view of Caja Rural del Sur (BIC BCOEESMM187) alongside 2,600+ other EU and UK banks. Both business and personal accounts are supported, and each authorisation lasts up to the regulatory maximum of 180 days before you renew it.

The service is certificate-free and zero-knowledge: your encryption keys are generated on your own device, and open-banking.io only ever holds your public key. Balances and transactions are sealed so that nobody but you — not even open-banking.io's servers — can read them.

How to connect Caja Rural del Sur

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 private key is created locally and never leaves your device.
  2. In the dashboard, search for and select Caja Rural del Sur, then choose the account type you want to link (business or personal).
  3. You're redirected to Caja Rural del Sur's own secure login, where you approve the access request directly with the bank (standard PSD2 consent).
  4. Once you confirm, your accounts sync back into your dashboard and stay refreshed for the life of the consent.

That's it — no developer redirect, no uploaded certificate, no gateway to maintain.

Access your data

Programmatic access is an optional step you take after connecting. On the Developers page, create an API key and export a credentials.json, which bundles that key with your private decryption key. From there you can 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 — the API key alone only ever returns ciphertext. The CLI and SDK read and sync existing connections; they never create them.

All of this runs on a flat subscription of roughly EUR 3/month.

Do I need an eIDAS certificate for Caja Rural del Sur?

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

Can open-banking.io read my Caja Rural del Sur transactions?

No. The platform is zero-knowledge and stores only your public key, so your data stays readable only to you.

How long does access last?

Up to 180 days per consent, after which you re-approve on Caja Rural del Sur's login to continue syncing.

Start at open-banking.io.