Sandbox account

I can see there is a “playground” to check out basic endpoints, but there seems to be no way to try out transactions without firing a request to my live bank account, which for various reasons I don’t want to be doing. Is there no way to create a “dummy” account I can use while my app is a work in progress?

Yes! This would be so enormously useful, although I appreciate it won’t be Monzo’s priority.

Would massively simplify things like testing across Joint and Business Accounts.

see API sandbox for testing purposes