ING API Access for Germany — Open Banking Made Simple

Pulling live data out of your ING (Germany) accounts no longer means wrestling with bank certificates or a bespoke integration. open-banking.io wraps ING behind a single, consistent REST API, so you can read balances and stream transactions into your own tools, dashboards or accounting stack in minutes. Whether you run a personal budget tracker or a finance team that reconciles daily, the same endpoints work the same way.

ING is identified by BIC INGDDEFFXXX, and open-banking.io supports both personal and business account types held there. Once a customer grants access, your app sees their real ING data through calls that look identical to every other bank on the network.

How to connect ING

  1. Sign up for an open-banking.io account and grab your API key.
  2. Start an authorisation session and send the customer to ING's secure login.
  3. The customer approves the requested scopes directly with ING.
  4. Receive your access token and begin calling the account endpoints.

What data you can read

  • Accounts — IBANs, currency, product and holder details.
  • Balances — current and available amounts, refreshed on demand.
  • Transactions — booked and pending entries with counterparties, dates and references.

Each ING authorisation lasts for a maximum consent window of 180 days, after which the customer simply re-approves. open-banking.io reaches 2,600+ banks across the EU and UK, so ING can sit alongside every other institution your users hold — one integration, one contract, no per-bank onboarding.

Privacy by design

The platform is zero-knowledge: credentials go straight to ING and are never visible to us, and there are no eIDAS certificates for you to buy, register or renew. You get bank-grade access without becoming a regulated integration project yourself.

Pricing

One flat rate of roughly EUR 3 per month covers ING and the entire bank network — no setup fees, no per-call surprises.

FAQ

Does ING support both personal and business accounts?

Yes. Both personal and business ING (Germany) accounts can be connected through the same flow and endpoints.

How long does an ING connection stay active?

A single consent is valid for up to 180 days. When it expires, the customer re-authorises with one quick approval at ING.

Do I need my own bank certificate to connect ING?

No. open-banking.io is certificate-free and zero-knowledge, so you never handle eIDAS certificates or see customer credentials.

Ready to sync ING data the simple way? Get started at open-banking.io.