Add callback for 3rd party integrations

[davystrong]

I have set up a personal project to automatically keep track of Monzo Flex in my finances. I also need to use another card account and would like to automate it too. Unfortunately, not all banks are like Monzo, and this one doesn't provide a nice API. However, it is already integrated with Monzo through Open Finance (I can see my transactions in the Monzo app). Is there any way to get a callback when I make a transaction on this card, similar to how I receive a callback when I make a transaction on my Monzo Flex card?