You can have a look on the doxygen documentation for the 0.1.3-rc1 on

http://nepenthes.sourceforge.net/nepenthes_core_doxy/html/

As the documentation for all modules is quite large (>60mb) the online documentation just includes the nepenthes-core and the example modules.
The doxygen file to create the docs for the whole source will be included in further releases.

have fun browsing it