In November 2016, we published our 27-criteria Forrester Wave evaluation of 14 vendors of API management solutions. The findings in that report show how well each vendor fulfilled the breadth and depth of our criteria. However, there are a wide variety of possible API strategies, and application development and delivery (AD&D) pros' must-have criteria will vary similarly. Buyers may also need a perspective on vendors' ability to provide other API platform elements. This report provides a quick reference in the form of four buyer's guides using 11 supplemental evaluation criteria.