SharePoint 2013 Social server class library
Find a list of the major social public namespaces in SharePoint 2013 that run on servers.
Applies to: SharePoint Server 2013 | SharePoint Foundation 2013
The Social class library reference for SharePoint 2013 lists .NET server namespaces. These namespaces contain classes and other members that are designed to help you develop SharePoint solutions.
For classes that run on a client, see .NET client API reference for SharePoint 2013.