API monetization is the discipline that sits at the intersection of product design, pricing strategy, and developer experience. Getting it wrong does not just reduce revenue — it drives away the developers whose integrations would have generated long-term value, in favor of short-term extraction that destroys the developer relationship before it matures.

The history of API monetization is populated with cautionary examples: pricing changes that broke the economics of applications built on the API, free tier eliminations that forced migrations at scale, metered pricing structures that made costs unpredictable enough that developers chose self-hosting over consumption. Each of these is a failure of the same kind — pricing that prioritized the API provider’s short-term revenue over the long-term value of developer trust.