Hello Bank API Access — Sync Belgian Accounts

Bringing your Hello Bank (Belgium) data into your own app no longer means wrestling with bank-specific portals or eIDAS certificates. With open-banking.io, a single REST endpoint lets you read authorised Hello Bank accounts and keep balances and transactions in sync automatically. Whether you are building a budgeting tool, an accounting integration or an internal dashboard, the connection is the same clean interface you already use for every other supported bank.

How to connect Hello Bank

1. Create an open-banking.io account and grab your API key.
2. Start an authorisation session, selecting Hello Bank (BIC GEBABEBB) as the target institution.
3. Redirect the account holder to Hello Bank's own login, where they approve access with their usual credentials.
4. Receive the callback and exchange it for a reusable access token.
5. Call the accounts, balances and transactions endpoints to pull data on demand.

What data you can access

Once consent is granted, you can retrieve the customer's personal account details, live and booked balances, and a full transaction history with amounts, counterparties, dates and reference text. Everything is returned as normalised JSON, so Hello Bank records look identical in shape to any other bank you connect.

Consent and coverage

Hello Bank access covers personal accounts, and a single consent stays valid for up to 180 days before the user needs to re-authorise. open-banking.io connects 2,600+ banks across the EU and UK through this one contract, so adding Hello Bank alongside other institutions requires no extra integration work.

Privacy by design

The platform is zero-knowledge: your users authenticate directly with Hello Bank, and we never see or store their banking passwords. There are no QWAC or eIDAS certificates to purchase, renew or manage — that regulatory overhead is handled for you, leaving a simple token-based flow.

Pricing

Access starts at roughly EUR 3 per month, with no per-bank surcharge. One flat subscription covers Hello Bank and every other institution in the network.

FAQ

Do I need an eIDAS certificate for Hello Bank?

No. open-banking.io is certificate-free, so you skip QWAC and QSEAL setup entirely and connect through standard API calls.

How long does Hello Bank access last?

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

Which account types are supported?

Hello Bank personal accounts are supported, returning balances and full transaction history via the unified API.

Ready to start syncing Hello Bank data? Explore the full platform at open-banking.io.