OP API Access in Finland — Sync Accounts Fast

Building on top of OP, Finland's largest banking group, no longer means wrestling with eIDAS certificates or bespoke sandbox onboarding. With open-banking.io you plug into a single API and start syncing live OP data — accounts, balances and transaction history — in minutes rather than weeks. Whether you are reconciling ledgers, powering a budgeting app, or feeding an accounting workflow, OP account data flows through one consistent endpoint.

How to connect OP

  1. Create your open-banking.io account and grab an API key.
  2. Point a connection request at OP using its BIC, OKOYFIHH.
  3. Send the OP account holder through the secure bank authentication screen to approve access.
  4. Poll the API and pull normalised OP data straight into your application.

What data you can access

  • Accounts — both personal and business OP accounts, with identifiers and metadata.
  • Balances — current and available figures kept in step with the bank.
  • Transactions — dated, categorised movements ready for reconciliation or analysis.

OP supports access to both personal and business account types. A single user authorisation stays valid for up to 180 days, after which the account holder simply re-approves to keep the stream flowing. Beyond OP, the same integration reaches 2,600+ banks across the EU and UK, so adding another Finnish or cross-border institution later is just another BIC — no new integration work.

Privacy by design

open-banking.io runs a zero-knowledge model: we never hold your users' banking credentials, and no QWAC or QSEAL certificates are required on your side. Authentication happens directly between the account holder and OP, so sensitive data never sits idle with a middleman. That keeps your compliance surface small and your users in control.

Pricing

Access starts at roughly EUR 3 per month — flat, predictable, and with no certificate fees or enterprise onboarding overhead. You get the full OP connection and the wider 2,600+ bank network for the same low price.

FAQ

Do I need an eIDAS certificate to reach OP?

No. open-banking.io handles the regulated access layer, so you connect to OP without buying or managing any certificates.

Can I read both personal and business OP accounts?

Yes. OP exposes personal and business account types, and both are available once the account holder authorises access.

How long does an OP authorisation last?

OP consents remain valid for up to 180 days. After that window, the user re-confirms access to continue syncing.

Ready to start syncing OP data? Explore the full platform at open-banking.io.