Crelan API Access — Sync Belgian Accounts Fast

Pulling live data out of Crelan shouldn't mean wrestling with bank-specific certificates or PSD2 paperwork. open-banking.io gives you one clean API endpoint that reaches Crelan (BIC NICABEBB) alongside 2,600+ other EU and UK institutions, so your app reads Belgian account data through the same integration you'd use anywhere else.

Whether you're building bookkeeping automation, a treasury dashboard, or affordability checks, a single authorized connection keeps Crelan balances and transaction history flowing into your product.

How to connect Crelan

  1. Create an open-banking.io account and grab your API key.
  2. Call the connect endpoint and select Crelan from the institution list.
  3. Redirect the account holder to Crelan's own login for strong customer authentication.
  4. The holder approves access; consent flows straight back to your callback.
  5. Start querying accounts, balances, and transactions immediately.

What data you get

  • Accounts — both business and personal Crelan accounts, with identifiers and metadata.
  • Balances — up-to-date available and booked figures.
  • Transactions — historical and recent movements with amounts, dates, and counterparties.

A single Crelan authorization stays valid for up to 180 days before the account holder needs to re-approve. Both business and personal account types are supported, and open-banking.io handles the regulated PSD2 access flow on your behalf so you never touch a QWAC or eIDAS certificate.

Privacy by design

We run a zero-knowledge, certificate-free model. Credentials are entered only on Crelan's own authentication screens — never on ours — and we don't warehouse or resell your users' financial data. You hold the keys; we move the bytes.

Pricing

Flat and predictable: around EUR 3 per month. No per-call surprises, no separate certificate fees, no enterprise minimums to unlock a working Crelan connection.

FAQ

Do I need my own PSD2 licence to access Crelan?

No. open-banking.io operates the regulated access layer, so you can read Crelan data without holding your own licence or certificates.

How long does a Crelan connection last?

Each consent is valid for up to 180 days. After that, the account holder simply re-authenticates to renew access.

Can I connect both business and personal Crelan accounts?

Yes. Both account types are supported through the same connect flow and API.

Ready to start? Explore the docs and connect Crelan at open-banking.io.