It is that easy to create a Mock server and API to display all the info you want. Best part, I can change that info and it will not break my frontend. With just a few tiny changes, this went from a Banking Application to a Landlord Rental Tracking Application!

Hope this showed you something new and giving you ideas on how you can experiment with things. Of course it is always great to make your own APIs but there are certain scenarios where that isn't necessary. This is a great substitute in situations like that!