Is it possible to offer an API for Finary to connect to your backend? Finary is an investment tracker that allows connecting multiple brokers and banks. It is super usefull when you have investments in several brokers. In my case I have with Revolut, Etoro, and Trading212. Webiste is here: https://finary.eu/
I am loving T212! Keep the good work! 
no sign of an official API for third party services just yet.
T212 needs to contact them directly. Their global service contact is mounir@finary.com and general contact email is hello@finary.eu
They also have no current plans to connect with third party services. People have requested for a variety of services to be made available, but there’s no indication they intend to use any of them. So don’t get your hopes up that T212 will be contacting finary for integration.