While there are a lot of talks and blogposts about APIs and the importance of an APIs Developer eXperience, most are about public API products. And while a lot of the best practices for API products are also applicable to private APIs, there are significant differences in the circumstances and trade-offs they need to make.
The most important difference is probably in their budgets: as potential profit centers, API products can afford to invest a lot more money in documentation and UX driven developer portal improvements. Internal APIs rarely have that luxury.

In this talk I will explain the differences between public and private APIs, introduce upstream developer experience, and explain how it can improve downstream DX. Introduce experience design (a.k.a. gamification) and Innersourcing (open sourcing practices behind the firewall) and describe how they could be used on internal developer portals.