WEG Bank API Access — Open Banking Integration

Want programmatic reach into your WEG Bank accounts without wrangling PSD2 certificates or standing up your own TPP licence? open-banking.io gives you read access to WEG Bank (BIC WEGBDE77XXX) balances and transactions across both business and personal accounts, with data that only ever decrypts on your own device.

Unlike a raw bank API, there is no eIDAS certificate to buy and no onboarding paperwork. You connect once in the dashboard, and everything afterwards is encrypted end to end with a key that never leaves your control.

How to connect WEG Bank

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

  1. Sign up at open-banking.io and set your encryption passphrase. Your key pair is generated locally on your device, so only you can later decrypt what syncs in.
  2. In the dashboard, search for WEG Bank and choose the account type you hold — business or personal.
  3. You are redirected to WEG Bank's own secure login, where you approve access on the bank's PSD2 consent screen. open-banking.io never sees your banking credentials.
  4. Your approved accounts sync into the dashboard. Consent lasts up to 180 days, after which you simply re-approve at WEG Bank to keep the link live.

Access your data

Once WEG Bank is connected, developers can optionally read the data programmatically. Open 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. The API key alone only ever returns ciphertext — without your private key, the payload stays unreadable. The CLI and SDK read and sync existing connections; they never create one.

Because open-banking.io is zero-knowledge, its servers hold only your public key and can never read or decrypt your WEG Bank data. All of this runs at roughly EUR 3/month.

FAQ

Does open-banking.io work with WEG Bank business accounts?

Yes. Both business and personal WEG Bank accounts (BIC WEGBDE77XXX) are supported.

Up to 180 days per approval, in line with PSD2. Re-approve at WEG Bank to renew.

Can open-banking.io staff see my transactions?

No. Data is decrypted only on your device with a key you hold — the service is zero-knowledge.

Start at https://open-banking.io.