That sounds good! Although I have a feeling that an independent developer might build this before Monzo has a chance to, once the API is ready…
A developer’s actually already started work on something similar - this app doesn’t summarise your spending by country but if you’d like you see your transactions by location in a ‘zoomable’ map
(& you don’t have too many transactions), check this out, from @walking_fishy -
You’ll need to create a client in the developer playground (which is a straightforward process), in order to sign into this app.