Here, you'll get to apply the skills you've learned so far to build a mini-application: a cryptocurrency tracker. You'll also get firsthand experience integrating an API (Application Programming Interface) which allows your application to talk with other applications and data.
While this is an exciting course on an interesting topic, we do not endorse the purchase of cryptocurrencies. These are emerging technologies and the world is still sorting out the usefulness and practicality of these currencies. However, the skills you learn here can be applied to many different APIs and use cases.