ING Wholesale Banking API Access via open-banking.io

Bring your ING Wholesale Banking data into your own systems without wrestling with bank portals or bespoke integrations. open-banking.io gives you a single, standardised API to sync ING Wholesale Banking (the Netherlands) corporate account information — so your treasury tools, ERP or reporting stack always work from live figures rather than manual exports.

ING Wholesale Banking serves large corporates and institutions, and open-banking.io lets you plug into those relationships programmatically alongside 2,600+ other EU and UK banks through one consistent interface.

How to connect ING Wholesale Banking

1. Create your open-banking.io account and grab your API key.
2. Select ING Wholesale Banking (Netherlands) from the supported bank list.
3. Approve access through ING's own secure authentication flow — you stay in control of the consent.
4. Pull accounts, balances and transactions via a single REST endpoint.

What data you can access

• Accounts — business account identifiers and metadata
• Balances — current and available balances in real time
• Transactions — historical and incoming transaction detail

The connection is read-only, so nothing about your access can move funds.

Consent and coverage

ING Wholesale Banking supports business account types through open-banking.io. A single consent stays valid for up to 180 days before ING asks you to re-authorise, keeping long-running integrations stable with minimal friction. No BIC is required for this connection.

Privacy by design

open-banking.io is zero-knowledge: your financial data passes through, but we never mine, sell or repurpose it. There are no certificates to generate, host or renew — the usual barrier to open-banking projects simply disappears. You get bank-grade access without the compliance overhead.

Pricing

One flat rate of roughly EUR 3/month covers your ING Wholesale Banking connection and every other bank you link — no per-call fees, no enterprise contracts, no surprises.

FAQ

Does open-banking.io support ING Wholesale Banking business accounts?

Yes. Business account types are supported, giving you programmatic access to corporate balances and transactions.

How often do I need to renew consent?

ING Wholesale Banking consents last up to 180 days. After that you simply re-authorise through the bank's secure flow.

Do I need eIDAS certificates to connect?

No. open-banking.io is entirely certificate-free — you connect using your API key without any PSD2 certificate setup.

Ready to start? Explore the full platform at https://open-banking.io.