Access Banca Promos Open Banking Data & API | Italy

Banca Promos is a Naples-based Italian bank, and with open-banking.io you can bring its account and transaction data into one private, encrypted dashboard. There are no eIDAS certificates to buy, no bank-by-bank paperwork, and no servers that can read your balances — your data is decrypted only on your own device, with a key that never leaves it. Whether you hold a Banca Promos business or personal account, access works the same way and syncs automatically once approved.

Banca Promos is reachable through open-banking.io under BIC PROSITNNXXX, alongside more than 2,600 other EU and UK banks. Consent you grant to share data lasts up to 180 days before Banca Promos asks you to re-authorise, keeping you in control of the connection at all times.

How to connect Banca Promos

Connecting happens entirely inside the open-banking.io dashboard — there is no API call, code, or key involved in this step:

  1. Sign up for open-banking.io and set your encryption passphrase. Your keys are generated locally on your device, so only you can later unlock the data.
  2. In the dashboard, search for Banca Promos and choose the account type you want to link — business or personal.
  3. You are redirected to Banca Promos's own secure login, where you approve access under PSD2 (Strong Customer Authentication).
  4. Once you confirm, your accounts and transactions flow back into your open-banking.io dashboard and keep syncing.

Access your data

Reading Banca Promos data programmatically is an optional step after the connection exists. On the Developers page, create an API key and export a credentials.json — this bundles the API key together with your private decryption key. From there, use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your own key. Without that private key, the API key alone returns only ciphertext — even open-banking.io holds nothing but your public key.

All of this runs for roughly EUR 3/month.

Do I need a certificate or developer account with Banca Promos?

No. open-banking.io is certificate-free; you approve access directly on Banca Promos's consent screen.

Can open-banking.io see my Banca Promos balances?

No. The service is zero-knowledge — it stores only your public key, and decryption happens on your device.

Up to 180 days, after which Banca Promos prompts you to re-authorise the connection.

Start at open-banking.io.