Example outline for API

Front Matter
 -title (page 1)
 -author, credits, and copyright info (page 2)

About this guide 
 define product and goal of guide 
 - Audience for this guide
 - How to use this guide
 - What this guide contains (chapter links with description)
 - Recommended background reading
 - Conventions used in this guide

Part One: Getting started
Chapter 1: Product overview
Chapter 2: Getting started (the basics on all steps involved in using
product)

Part Two: Using the API
Chapter 1: Describe methods grouped by usage 1
Chapter 2: Describe methods grouped by usage 2

(depending on size of API, might need a part devoted to each
"usage" class, and each chapter devoted to 

subset)

Part Three: Utilities and troubleshooting

Part Four: Reference (Appendices)

Part Five: Glossary