BNG Bank API Access — Sync Netherlands Accounts

Pulling live data out of BNG Bank no longer means chasing eIDAS certificates or negotiating a direct PSD2 contract. With open-banking.io you point a single REST endpoint at BNG Bank in the Netherlands and start syncing account information within minutes. One integration, one credential set, and the same request shape you already use for the other 2,600+ banks on the network.

BNG Bank (Bank Nederlandse Gemeenten, BIC BNGHNL2G) serves public-sector and institutional clients, so its coverage on our platform is focused on business accounts. If you build treasury tooling, reconciliation software, or reporting dashboards for Dutch organisations, this is the connection you want.

How to connect BNG Bank

  1. Create an open-banking.io account and grab your API key.
  2. Call the institutions endpoint and select BNG Bank using BIC BNGHNL2G.
  3. Start a consent session — your user is redirected to BNG Bank to approve access.
  4. After the redirect returns, exchange the reference for a live connection.
  5. Query accounts, balances, and transactions with standard GET requests.

What data you can access

  • Accounts — IBANs, currency, holder details, and account metadata.
  • Balances — booked and available figures for up-to-date positions.
  • Transactions — historical and recent entries with amounts, counterparties, dates, and remittance information.

Everything is returned as clean, normalised JSON, so BNG Bank responses line up field-for-field with every other institution you connect.

A single BNG Bank authorisation stays valid for up to 180 days before your user re-approves. That long window keeps recurring syncs running smoothly and cuts down on repeat consent prompts for treasury and reporting workflows.

Privacy by design

We run a zero-knowledge architecture: financial data streams through to you and is not mined, resold, or retained for profiling. There are no eIDAS or QWAC certificates to buy, host, or renew — we handle the regulated PSD2 plumbing so you skip the compliance overhead entirely.

Pricing

Flat and predictable at roughly EUR 3 per month. No per-call surcharges, no enterprise minimums, no setup fee — the same rate whether you connect BNG Bank alone or the full European network.

Is a banking licence required to use this?

No. open-banking.io provides the regulated access layer, so you consume the API directly without holding a PSD2 licence yourself.

Which BNG Bank accounts are supported?

Business accounts, matching BNG Bank's public-sector and institutional client base.

How often can I refresh data?

As often as your workflow needs within the 180-day consent window; each refresh returns the latest balances and transactions.

Ready to build? Get started at open-banking.io.