Class libraries (SDKs/API overviews) for the Episerver platform provides an overview of classes and interfaces that you can use when building and customizing system functionality. 

Note: Not all products in the Episerver platform have class libraries in this format. See the Episerver developer guides instead for guidance.

     
Episerver CMS class libraries - APIs

Episerver Commerce class libraries - APIs

Episerver Campaign class libraries - APIs

Episerver Find class libraries - APIs

Episerver Social class libraries - APIs

Episerver Profile Store class libraries - APIs