On: I didn't get paid, so I open-sourced my client’s project

[rrix2]

Which bank implements OAuth?

[slartibardfast0 → rrix2]

Every bank in the EU will have to have it or near equivalent very soon under the EU’s Payment Services Directive 2 which mandates API based access to accounts.

Sandboxes are already available under reasonable terms for many banks in for example Ireland.

*edit, first word

[anarsdk → rrix2]

Most of the nordic countries in Euruope do through an entity called Nordic API Gateway.

https://docs.nordicapigateway.com/

[dingwallr → rrix2]

Monzo bank in the UK uses OAuth 2.0 for its API: https://docs.monzo.com/#authentication

(disclaimer: I work here)