Packages 
Package Description
com.dropbox.core  
com.dropbox.core.android  
com.dropbox.core.http  
com.dropbox.core.json  
com.dropbox.core.oauth  
com.dropbox.core.stone  
com.dropbox.core.util  
com.dropbox.core.v1  
com.dropbox.core.v2  
com.dropbox.core.v2.account

See DbxUserAccountRequests for a list of possible requests for this namespace.
com.dropbox.core.v2.async  
com.dropbox.core.v2.auth

See DbxAppAuthRequests, DbxUserAuthRequests for a list of possible requests for this namespace.
com.dropbox.core.v2.callbacks  
com.dropbox.core.v2.check

See DbxUserCheckRequests, DbxAppCheckRequests for a list of possible requests for this namespace.
com.dropbox.core.v2.common  
com.dropbox.core.v2.contacts

See DbxUserContactsRequests for a list of possible requests for this namespace.
com.dropbox.core.v2.fileproperties

This namespace contains helpers for property and template metadata endpoints.
com.dropbox.core.v2.filerequests

This namespace contains endpoints and data types for file request operations.
com.dropbox.core.v2.files

This namespace contains endpoints and data types for basic file operations.
com.dropbox.core.v2.paper

This namespace contains endpoints and data types for managing docs and folders in Dropbox Paper.
com.dropbox.core.v2.secondaryemails  
com.dropbox.core.v2.seenstate  
com.dropbox.core.v2.sharing

This namespace contains endpoints and data types for creating and managing shared links and shared folders.
com.dropbox.core.v2.team

See DbxTeamTeamRequests for a list of possible requests for this namespace.
com.dropbox.core.v2.teamcommon  
com.dropbox.core.v2.teamlog

See DbxTeamTeamLogRequests for a list of possible requests for this namespace.
com.dropbox.core.v2.teampolicies  
com.dropbox.core.v2.users

This namespace contains endpoints and data types for user management.
com.dropbox.core.v2.userscommon

This namespace contains common data types used within the users namespace.