Banque Populaire du Sud API Access & Open Banking

Reaching your Banque Populaire du Sud accounts programmatically usually means chasing PSD2 certificates and bank-specific sandboxes. open-banking.io removes that overhead. It is a certificate-free, zero-knowledge bridge covering 2,600+ EU and UK banks, so you can pull balances and transactions from Banque Populaire du Sud without ever handing your data to a third party in readable form. Your encryption keys are generated on your own device, and every response is decrypted locally with a key only you hold.

Banque Populaire du Sud (BIC CCBPFRPPPPG) is supported for both business and personal accounts, with a maximum consent lifetime of 180 days before you re-authorise.

How to connect Banque Populaire du Sud

Connecting happens entirely inside the open-banking.io dashboard — there is no API call, no code, and no key involved in this step.

  1. Sign up for open-banking.io and set your encryption passphrase. Your private key never leaves your device.
  2. In the dashboard, choose Banque Populaire du Sud and select the account type you want to link (business or personal).
  3. You are redirected to Banque Populaire du Sud's own secure login, where you approve access on the bank's PSD2 consent screen.
  4. Once approved, your accounts sync straight into your open-banking.io dashboard.

Because approval takes place on the bank's own domain, your credentials are only ever seen by Banque Populaire du Sud — open-banking.io holds only your public key.

Access your data

After a connection exists, developers can optionally read it programmatically. On the Developers page, create an API key and export a credentials.json file — 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 authenticate with the X-Api-Key header, and every payload is decrypted locally with your own key. The API key alone only ever returns ciphertext; without your private key, no one — not even open-banking.io — can read it. Note that the CLI and SDK read and sync existing connections; they do not create new ones.

All of this runs from roughly EUR 3/month.

Do I need an eIDAS or PSD2 certificate?

No. open-banking.io is certificate-free — you authorise Banque Populaire du Sud directly on its consent screen.

Can open-banking.io read my Banque Populaire du Sud data?

No. The service is zero-knowledge and stores only your public key. Decryption happens on your device.

Up to 180 days for Banque Populaire du Sud, after which you re-approve access from the dashboard.

Start linking Banque Populaire du Sud at open-banking.io.