Isbank API Access – Sync Isbank Germany Data

Pulling live data from Isbank (Isbank GmbH, Germany) no longer means wrestling with eIDAS certificates or bespoke bank portals. With open-banking.io you sync Isbank accounts, balances and transaction history through a single REST endpoint, and the same integration works across 2,600+ EU and UK banks. Whether you are reconciling a business ledger or building a personal finance view, one authenticated connection keeps Isbank data flowing into your app.

How to connect Isbank

1. Sign up for open-banking.io and grab your API key.
2. Call the institutions endpoint and select Isbank (BIC ISBKDEFXXXX).
3. Redirect the account holder to Isbank's own login to grant consent.
4. Receive the callback and start reading data — no certificates, no bank onboarding paperwork.

What data you can access

Once consent is granted, Isbank exposes the essentials for both business and personal account types:

• Accounts — IBANs, currency and account metadata
• Balances — current and available figures
• Transactions — dated, categorisable entries with counterparty details

Consent and coverage

Isbank consent lasts up to 180 days before the customer re-authorises, which is the PSD2 maximum and keeps refresh prompts to a minimum. Coverage spans Isbank's German retail and business accounts, all reachable through the same endpoints you already use for every other supported bank.

Privacy by design

The platform is zero-knowledge: your credentials and account data are never mined or resold, and there is nothing for us to leak. Because the service is certificate-free, you skip the QWAC/QSEAL setup that traditionally gates PSD2 access — authentication is handled for you.

Pricing

One flat plan from roughly EUR 3/month covers Isbank alongside every other institution on the network. No per-bank fees, no per-call surprises.

FAQ

Do I need an eIDAS certificate to reach Isbank?

No. open-banking.io is certificate-free, so you connect to Isbank without provisioning or maintaining any PSD2 certificates.

How long does an Isbank consent stay valid?

Up to 180 days. After that the account holder simply re-confirms access through Isbank's login.

Can I connect both business and personal Isbank accounts?

Yes. Both account types are supported through the same flow and the same set of endpoints.

Ready to start syncing Isbank data? Get your key at open-banking.io.