SAS EuroBonus Mastercard API Access & Open Banking

Your SAS EuroBonus Mastercard collects a steady stream of travel spending, statements and reward-earning transactions. open-banking.io lets you bring that data into one place and, if you want, read it programmatically — without certificates, bank sponsorship, or handing anyone the keys to decrypt it. It is a certificate-free, EU/UK-wide open-banking service covering 2,600+ banks and card issuers, and it works with a personal SAS EuroBonus Mastercard account.

The model is deliberately simple: your encryption keys are generated on your own device, so only you can read your account data. open-banking.io stores just your public key and never sees the plaintext.

How to connect SAS EuroBonus Mastercard

Connecting happens entirely in 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 an encryption passphrase. Your private and public keys are created locally on your device from that passphrase.
  2. In the dashboard, choose SAS EuroBonus Mastercard and select the personal account type.
  3. You are redirected to SAS EuroBonus Mastercard's own secure login and consent screen, where you approve access under PSD2. Your credentials stay with the card issuer.
  4. Once approved, your accounts and transactions sync into your open-banking.io dashboard, encrypted with your key.

Consent lasts up to 180 days, after which you simply re-approve on the issuer's screen. There is no published BIC for this card, so open-banking.io routes the connection by name rather than by BIC.

Access your data

Reading the data with code is an optional step you take after connecting. 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. Note that the API key alone only ever returns ciphertext — without your private key there is nothing readable to see. The CLI and SDK read and sync existing connections; they cannot create one.

Pricing is around EUR 3/month for the full service.

Does open-banking.io ever see my SAS EuroBonus Mastercard data?

No. It is zero-knowledge and holds only your public key. Data is decrypted on your device with a key that never leaves it.

Do I need a certificate or developer agreement?

No. open-banking.io is certificate-free — you approve access on the issuer's own consent screen and you are done.

Can I connect the card using the API or CLI?

No. Connecting always happens in the dashboard via the issuer's login. The CLI, SDK and API only read or sync connections you have already approved.

Ready to start? Visit open-banking.io.