Crédit Mutuel de Bretagne API Access via Open Banking

Bringing Crédit Mutuel de Bretagne into your own tools no longer means building a bank integration from scratch. With open-banking.io you connect once and keep balances, account details and transaction history flowing into whatever you run — a treasury dashboard, an accounting workflow, a budgeting app, or a bespoke internal report. One consistent API sits in front of Crédit Mutuel de Bretagne and 2,600+ other banks across the EU and UK, so the same code reads a Breton current account and a German business account alike.

How to connect Crédit Mutuel de Bretagne

  1. Create an open-banking.io account and generate your API key.
  2. Call the connect endpoint and select Crédit Mutuel de Bretagne from the bank list.
  3. Approve access in the bank's own secure login — your credentials go straight to Crédit Mutuel de Bretagne, never to us.
  4. Receive the returned reference and start pulling data immediately.

What data you can access

Once a consent is live, you can read accounts (business and personal), current balances, and detailed transaction histories — dates, amounts, counterparties and reference text — normalised into one predictable schema across every connected institution.

Crédit Mutuel de Bretagne consents run for up to 180 days before the account holder re-authorises, which is the maximum PSD2 window and keeps re-consent prompts infrequent. Both business and personal account types are supported. No BIC is required to establish the connection — selecting the bank is enough.

Privacy by design

open-banking.io is zero-knowledge: authentication happens directly between the user and Crédit Mutuel de Bretagne, and we never store banking passwords. There are no eIDAS certificates to buy, host or renew — the heavy PSD2 compliance machinery is handled for you, so you skip the paperwork entirely.

Pricing

Access starts at roughly EUR 3 per month, a flat, predictable cost that covers Crédit Mutuel de Bretagne alongside every other bank in the network — no per-connection surcharge, no enterprise contract.

Do I need a licence or certificate to connect?

No. open-banking.io operates the regulated layer, so you can start without any AISP licence or QWAC/QSEAL certificate.

How long does a Crédit Mutuel de Bretagne connection stay active?

Up to 180 days per consent. After that the account holder simply re-approves to continue syncing.

Can I read both business and personal accounts?

Yes. Both account types are covered under the same connection and unified API.

Ready to start? Explore the docs and connect your first account at https://open-banking.io.