diff --git a/include/fc/filesystem.hpp b/include/fc/filesystem.hpp
index 780f7a9..28261c2 100644
--- a/include/fc/filesystem.hpp
+++ b/include/fc/filesystem.hpp
@@ -69,5 +69,9 @@ namespace fc {
 
   path     unique_path();
   path     temp_directory_path();
+
+  class value;
+  void pack( fc::value& , const fc::path&  );
+  void unpack( const fc::value& , fc::path&  );
 }
 
diff --git a/include/fc/ip.hpp b/include/fc/ip.hpp
index a34ee6b..10e53dc 100644
--- a/include/fc/ip.hpp
+++ b/include/fc/ip.hpp
@@ -1,5 +1,4 @@
-#ifndef _FC_IP_HPP_
-#define _FC_IP_HPP_
+#pragma once
 #include <fc/string.hpp>
 
 namespace fc {
@@ -47,5 +46,7 @@ namespace fc {
         uint32_t _port; 
     };
   }
+  class value;
+  void pack( fc::value& , const fc::ip::endpoint&  );
+  void unpack( const fc::value& , fc::ip::endpoint&  );
 }
-#endif // _FC_ENDPOINT_HPP_
diff --git a/src/filesystem.cpp b/src/filesystem.cpp
index ee001a9..81bd67e 100644
--- a/src/filesystem.cpp
+++ b/src/filesystem.cpp
@@ -2,8 +2,15 @@
 #include <fc/fwd_impl.hpp>
 #include <fc/utility.hpp>
 #include <boost/filesystem.hpp>
+#include <fc/value_cast.hpp>
 
 namespace fc {
+  void pack( fc::value& v, const fc::path& s ) {
+      v = s.generic_string();
+  }
+  void unpack( const fc::value& v, fc::path& s ) {
+      s = path(fc::value_cast<fc::string>(v));
+  }
 
    path::path(){}
    path::~path(){};
diff --git a/src/ip.cpp b/src/ip.cpp
index 48b22e0..f7f8840 100644
--- a/src/ip.cpp
+++ b/src/ip.cpp
@@ -1,4 +1,5 @@
 #include <fc/ip.hpp>
+#include <fc/value_cast.hpp>
 #include <boost/asio.hpp>
 #include <boost/lexical_cast.hpp>
 #include <string>
@@ -53,4 +54,12 @@ namespace fc { namespace ip {
     return string(_ip) + ':' + fc::string(boost::lexical_cast<std::string>(_port).c_str());
   }
 
-} } 
+} 
+  void pack( fc::value& v, const fc::ip::endpoint& s ) {
+      v = fc::string(s);
+  }
+  void unpack( const fc::value& v, fc::ip::endpoint& s ) {
+      s = fc::ip::endpoint::from_string(fc::value_cast<fc::string>(v));
+  }
+
+} 
diff --git a/src/pke.cpp b/src/pke.cpp
index 97d8a00..2ed6fbf 100644
--- a/src/pke.cpp
+++ b/src/pke.cpp
@@ -3,6 +3,7 @@
 #include <fc/exception.hpp>
 #include <fc/raw.hpp>
 #include <fc/value.hpp>
+#include <fc/value_cast.hpp>
 #include <fc/base58.hpp>
 #include <iostream>
 #include <fc/sha1.hpp>