ING Wholesale Banking API Access | open-banking.io

Syncing your ING Wholesale Banking (Bulgaria) data no longer means wrestling with certificates, eIDAS keys or a bespoke corporate integration. With open-banking.io you connect once and pull live business account information into your own tools, spreadsheets or accounting stack through a single, standard REST API. The same endpoints work across 2,600+ EU and UK banks, so ING Wholesale Banking is just one entry in a consistent, well-documented interface.

How to connect ING Wholesale Banking

  1. Create an open-banking.io account and generate your API key.
  2. Call the institutions endpoint and select ING Wholesale Banking (Bulgaria).
  3. Start a consent session and hand the authorisation link to your ING signatory.
  4. Approve access inside ING's own secure banking environment.
  5. Fetch accounts, balances and transactions — or stream them to your app.

What data you can access

Once a business user has authorised the connection, you can retrieve:

  • Accounts — corporate account identifiers, currency and metadata
  • Balances — current and available figures for reconciliation
  • Transactions — dated, categorisable entries for cash-flow and reporting

ING Wholesale Banking is served here as a business-account institution. No BIC is published for this connection, and that is handled transparently on our side.

Each authorisation lasts for a maximum consent window of 180 days, after which the account holder simply re-approves. Coverage spans thousands of banks, so once you have integrated open-banking.io you can add further institutions without new plumbing.

Privacy by design

open-banking.io is zero-knowledge and certificate-free. You never upload eIDAS certificates or manage signing keys, and we never see or store your banking credentials — authentication happens entirely within ING's environment. Your data passes through, it does not pile up.

Pricing

One flat plan of roughly EUR 3/month covers API access across every supported bank, including ING Wholesale Banking. No per-connection fees, no enterprise contract.

FAQ

Do I need eIDAS certificates to connect ING Wholesale Banking?

No. open-banking.io is certificate-free — we handle the regulated access layer, so you only need your API key and an authorising ING business user.

How long does access last before renewal?

Consent runs for up to 180 days. When it lapses, the account holder re-authorises in a few clicks to resume syncing.

What ING Wholesale Banking data can I pull?

Business accounts, their balances, and transaction history — enough for reconciliation, cash-flow monitoring and automated reporting.

Ready to start? Connect ING Wholesale Banking today at https://open-banking.io.