Millennium BCP API Access — Open Banking Portugal

Bring your Millennium BCP data into any app with a single open-banking.io integration. Instead of scraping screens or juggling per-bank certificates, you sync live account information from Portugal's largest private bank through one clean, standards-based API. Whether you are building accounting software, a treasury dashboard, or a personal finance tool, the same endpoints that serve 2,600+ European banks also cover Millennium BCP (BIC BCOMPTPL).

How to connect Millennium BCP

1. Sign up for an open-banking.io account and grab your API key.
2. Call the institutions endpoint and select Millennium BCP (Portugal).
3. Redirect the account holder to Millennium BCP to authenticate and approve access.
4. Receive the callback with a reusable consent token.
5. Query accounts, balances, and transactions — no certificates, no eIDAS setup.

What data you can access

Once consent is granted, you can read:

• Accounts — both personal and business account types, with IBAN and holder details.
• Balances — current and available balances in real time.
• Transactions — historical and recent movements with amounts, dates, counterparties, and references.

Consent and coverage

Millennium BCP supports a maximum consent window of 180 days, after which the account holder simply re-authorises to keep the connection live. open-banking.io handles the PSD2 flow, token refresh reminders, and normalisation so Millennium BCP data arrives in the same shape as every other bank on the network — write your integration once and reuse it across Portugal and the wider EU/UK.

Privacy by design

The platform is zero-knowledge: your users' banking credentials go straight to Millennium BCP and are never seen or stored by open-banking.io. There are no QWAC/QSEAL certificates to buy or renew — the certificate-free architecture removes the heaviest part of PSD2 onboarding while keeping every request encrypted end to end.

Pricing

One flat plan starting around EUR 3/month covers Millennium BCP alongside the full network of 2,600+ banks. No per-connection surcharges, no enterprise minimums, no setup fees.

FAQ

Do I need an eIDAS certificate to access Millennium BCP?

No. open-banking.io is certificate-free — you connect with an API key alone, and the platform manages the regulated access layer for you.

Can I connect both personal and business accounts?

Yes. Millennium BCP exposes personal and business account types, and both are available through the same consent flow and endpoints.

How long does a Millennium BCP consent last?

Up to 180 days per authorisation. When it expires, the account holder re-confirms access in a few taps to resume syncing.

Ready to start? Explore the docs and get your key at open-banking.io.