This is a big area to explore, but I think there’s definitely something to be done!
First of all, I see no reason why Monzo-to-Monzo ease of sending funds couldn’t be used to easily send some money to charity. Clicking monzo.me/charityname (requires custom monzo.me links), would add money to that account with no hassle at all.
I think that once Monzo allows virtual cards and saving pots, this can be utilised in many ways too, I can see some benefits for charity too.
Thing is, I don’t know how Charities sit with Monzo as a company - Monzo targets private users, while charity stuff can have lots of extra laws, legislation and rules that Monzo would need to incorporate. I don’t feel like forcing any charity to use Monzo in a way that’s not fully legal (as in creating private Monzo account and saying it’s charity’s official account) is a way to go.
But I really would like an option to quickly send some money via Monzo to charity - easier than Paypal or filling out payment form on their website. Maybe third party plugin will do that once API is ready?