Apologies, Monzo currently doesn't allow OAuth to be used publicly for all users. This website is on hold until that's allowed.

This service was setup by @ashleyhindle to automatically send Monzo transactions in to YNAB. I'm so lazy I didn't want to have to add a YNAB transaction every time I used my Monzo card, so I built this for myself and anybody else who wants to save time, but keep using the best debit card and budgeting software together.