The VMware vFabric AppInsight Developer's Guide comprises to sections. The first section describes an API that you can use to interact with the AppInsight datastore of your monitored applications, outside of the user interface. The second section describes plug-ins that you can use to gather additonal metrics.

This information is intended for anyone who wants to use automated processes to retrieve data from the AppInsight datastore or to perform certain topology actions. You should be familiar with REST concepts and with the JSON serialization format.

It is also intended for developers who need to incorporate plug-ins to gather metrics that are not included in AppInsight. Developers should be familiar with VMware SpringSource Spring Insight methodologies.