API monetization is an important topic, and all too often people think of it as "how to charge for API access." Distinguished engineer and lead of developer experience Tanya Vlahovic talks about how eBay was able to generate $5b in revenues with their buyer APIs. It is a great example of how to generate value through APIs by improving or adding to existing value chains. This is how API monetization should be thought of in the vast majority of cases: Don't think about "API as a product", but instead think about "Product as API."