Crédit Mutuel du Sud-Ouest Open Banking Access

Pull your Crédit Mutuel du Sud-Ouest balances and transaction history into one place without wrestling with PSD2 certificates or a bank sandbox. open-banking.io connects to Crédit Mutuel du Sud-Ouest (a Crédit Mutuel Arkéa network bank in France) alongside 2,600+ other EU and UK institutions, and every byte of account data is decrypted on your own device with a key only you hold. Both business and personal accounts are supported, and a single consent stays valid for up to 180 days before you re-approve.

How to connect Crédit Mutuel du Sud-Ouest

Connecting happens entirely in the open-banking.io dashboard — there is no API call, code, or key involved in linking the account.

  1. Sign up for open-banking.io and set your encryption passphrase. Your key pair is generated locally on your device; open-banking.io only ever sees your public key.
  2. In the dashboard, choose Crédit Mutuel du Sud-Ouest and pick the account type — business or personal.
  3. You're redirected to Crédit Mutuel du Sud-Ouest's own secure login to approve access on the bank's PSD2 consent screen.
  4. Once approved, your accounts sync back into the dashboard, ready to view.

Because the flow runs through the bank's own login, your credentials are never shared with open-banking.io.

Access your data

After the connection exists, developers can optionally read it programmatically. On the Developers page, create an API key and export a credentials.json — this bundles the API key and your private decryption key. Then use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Requests authenticate with the X-Api-Key header, and each response is decrypted locally with your key. The API key alone only ever returns ciphertext — without your private key there is nothing readable to see.

Note: BIC is not published for Crédit Mutuel du Sud-Ouest, but it isn't needed — you select the bank by name in the dashboard.

Do I need an eIDAS certificate?

No. open-banking.io is certificate-free — you just approve access on Crédit Mutuel du Sud-Ouest's consent screen.

Can open-banking.io read my transactions?

No. It's zero-knowledge and holds only your public key. Data is decrypted locally with the private key only you have.

How much does it cost?

Around EUR 3/month for access across all supported banks, including Crédit Mutuel du Sud-Ouest.

Start at open-banking.io.