The API reference engineers actually bookmark.
12× increase in API docs page visits within 60 days of rewrite.
Vantage's REST API had 847 endpoints documented in a single 340-page PDF generated from Swagger defaults. Developers were filing "how do I?" tickets at 23 per week. The engagement began with a full information architecture audit, then a complete rewrite into a structured reference system with runnable code examples, error code taxonomies, and contextual guides.
"Our developer NPS went from 31 to 67 in one quarter. The docs were the only thing that changed."