diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index 9054a717..4ac588da 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -87,7 +87,7 @@ set(ALL_SOURCE_LIST
         wedpr-helper/libhelper wedpr-helper/ppc-tools
         wedpr-storage/ppc-io wedpr-storage/ppc-storage
         wedpr-transport/ppc-gateway wedpr-transport/ppc-front 
-        wedpr-transport/ppc-http wedpr-transport/ppc-rpc
+        wedpr-transport/ppc-http wedpr-transport/ppc-rpc wedpr-transport/sdk
         wedpr-computing/ppc-psi wedpr-computing/ppc-mpc wedpr-computing/ppc-pir ${CEM_SOURCE})
 
 if(BUILD_WEDPR_TOOLKIT)
@@ -100,7 +100,7 @@ if(BUILD_WEDPR_TOOLKIT)
         include(swig)
         message(STATUS "Getting SWIG for Windows: ...DONE")
     endif()
-    add_subdirectory(wedpr-toolkit-wrapper)
+    add_subdirectory(wedpr-transport/sdk-wrapper)
 endif()
 
 if(BUILD_ALL)
diff --git a/cpp/cmake/Options.cmake b/cpp/cmake/Options.cmake
index bf631af3..9b092e36 100644
--- a/cpp/cmake/Options.cmake
+++ b/cpp/cmake/Options.cmake
@@ -169,6 +169,7 @@ macro(print_config NAME)
     message("-- DEMO                Enable DEMO                  ${ENABLE_DEMO}")
     message("-- BUILD_SDK           BUILD SDK                    ${BUILD_SDK}")
     message("-- BUILD_UDF           BUILD UDF                    ${BUILD_UDF}")
+    message("-- BUILD_WEDPR_TOOLKIT BUILD_WEDPR_TOOLKIT          ${BUILD_WEDPR_TOOLKIT}")
     message("-- DEBUG                                            ${DEBUG}")
     message("------------------------------------------------------------------------")
     message("")
diff --git a/cpp/cmake/TargetSettings.cmake b/cpp/cmake/TargetSettings.cmake
index 46735456..519f4d55 100644
--- a/cpp/cmake/TargetSettings.cmake
+++ b/cpp/cmake/TargetSettings.cmake
@@ -137,5 +137,5 @@ set(BOOST_UNIT_TEST Boost::unit_test_framework)
 set(WEDPR_TRANSPORT_SDK_TARGET wedpr-transport-sdk)
 
 # ==== the swig wrapper ===== 
-set(WEDPR_PYTHON_TOOLKIT "wedpr_python_toolkit")
-set(WEDPR_PYTHON_TOOLKIT_DIR ${PROJECT_BINARY_DIR}/python/${WEDPR_PYTHON_TOOLKIT})
\ No newline at end of file
+set(WEDPR_PYTHON_TRANSPORT "wedpr_python_transport")
+set(WEDPR_PYTHON_TRANSPORT_DIR ${PROJECT_BINARY_DIR}/python/${WEDPR_PYTHON_TRANSPORT})
\ No newline at end of file
diff --git a/cpp/cmake/python.cmake b/cpp/cmake/python.cmake
new file mode 100644
index 00000000..8adbf35d
--- /dev/null
+++ b/cpp/cmake/python.cmake
@@ -0,0 +1,104 @@
+if(NOT BUILD_PYTHON)
+  return()
+endif()
+
+# Use latest UseSWIG module (3.14) and Python3 module (3.18)
+cmake_minimum_required(VERSION 3.18)
+
+# Will need swig
+set(CMAKE_SWIG_FLAGS)
+find_package(SWIG REQUIRED)
+include(UseSWIG)
+
+if(${SWIG_VERSION} VERSION_GREATER_EQUAL 4)
+  list(APPEND CMAKE_SWIG_FLAGS "-doxygen")
+endif()
+
+if(UNIX AND NOT APPLE)
+  list(APPEND CMAKE_SWIG_FLAGS "-DSWIGWORDSIZE64")
+endif()
+
+# Find Python 3
+find_package(Python3 REQUIRED COMPONENTS Interpreter Development.Module)
+list(APPEND CMAKE_SWIG_FLAGS "-py3" "-DPY3")
+
+function(search_python_module)
+  set(options NO_VERSION)
+  set(oneValueArgs NAME PACKAGE)
+  set(multiValueArgs "")
+  cmake_parse_arguments(MODULE
+    "${options}"
+    "${oneValueArgs}"
+    "${multiValueArgs}"
+    ${ARGN}
+  )
+  message(STATUS "Searching python module: \"${MODULE_NAME}\"")
+  if(${MODULE_NO_VERSION})
+    execute_process(
+      COMMAND ${Python3_EXECUTABLE} -c "import ${MODULE_NAME}"
+      RESULT_VARIABLE _RESULT
+      ERROR_QUIET
+      OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    set(MODULE_VERSION "unknown")
+  else()
+    execute_process(
+      COMMAND ${Python3_EXECUTABLE} -c "import ${MODULE_NAME}; print(${MODULE_NAME}.__version__)"
+      RESULT_VARIABLE _RESULT
+      OUTPUT_VARIABLE MODULE_VERSION
+      ERROR_QUIET
+      OUTPUT_STRIP_TRAILING_WHITESPACE
+      )
+  endif()
+  if(${_RESULT} STREQUAL "0")
+    message(STATUS "Found python module: \"${MODULE_NAME}\" (found version \"${MODULE_VERSION}\")")
+  else()
+    if(FETCH_PYTHON_DEPS)
+      message(WARNING "Can't find python module: \"${MODULE_NAME}\", install it using pip...")
+      execute_process(
+        COMMAND ${Python3_EXECUTABLE} -m pip install --user ${MODULE_PACKAGE}
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+        )
+    else()
+      message(FATAL_ERROR "Can't find python module: \"${MODULE_NAME}\", please install it using your system package manager.")
+    endif()
+  endif()
+endfunction()
+
+# Find if a python builtin module is available.
+# e.g
+# search_python_internal_module(
+#   NAME
+#     mypy_protobuf
+# )
+function(search_python_internal_module)
+  set(options "")
+  set(oneValueArgs NAME)
+  set(multiValueArgs "")
+  cmake_parse_arguments(MODULE
+    "${options}"
+    "${oneValueArgs}"
+    "${multiValueArgs}"
+    ${ARGN}
+  )
+  message(STATUS "Searching python module: \"${MODULE_NAME}\"")
+  execute_process(
+    COMMAND ${Python3_EXECUTABLE} -c "import ${MODULE_NAME}"
+    RESULT_VARIABLE _RESULT
+    ERROR_QUIET
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+  if(${_RESULT} STREQUAL "0")
+    message(STATUS "Found python internal module: \"${MODULE_NAME}\"")
+  else()
+    message(FATAL_ERROR "Can't find python internal module \"${MODULE_NAME}\", please install it using your system package manager.")
+  endif()
+endfunction()
+
+# Look for python module wheel
+search_python_module(
+  NAME setuptools
+  PACKAGE setuptools)
+search_python_module(
+  NAME wheel
+  PACKAGE wheel)
\ No newline at end of file
diff --git a/cpp/wedpr-protocol/protocol/src/v1/MessageHeaderImpl.h b/cpp/wedpr-protocol/protocol/src/v1/MessageHeaderImpl.h
index 17f4b99d..b48caec7 100644
--- a/cpp/wedpr-protocol/protocol/src/v1/MessageHeaderImpl.h
+++ b/cpp/wedpr-protocol/protocol/src/v1/MessageHeaderImpl.h
@@ -109,5 +109,10 @@ class MessageOptionalHeaderBuilderImpl : public MessageOptionalHeaderBuilder
     {
         return std::make_shared<MessageOptionalHeaderImpl>(optionalHeader);
     }
+
+    MessageOptionalHeader::Ptr build() override
+    {
+        return std::make_shared<MessageOptionalHeaderImpl>();
+    }
 };
 }  // namespace ppc::protocol
\ No newline at end of file
diff --git a/cpp/wedpr-transport/sdk-wrapper/CMakeLists.txt b/cpp/wedpr-transport/sdk-wrapper/CMakeLists.txt
new file mode 100644
index 00000000..a56f6cf1
--- /dev/null
+++ b/cpp/wedpr-transport/sdk-wrapper/CMakeLists.txt
@@ -0,0 +1,10 @@
+project(wedpr-transport-swig VERSION ${VERSION})
+
+find_package(SWIG REQUIRED)
+include(${SWIG_USE_FILE})
+
+# Add subdirectories for each language if desired
+option(BUILD_PYTHON "Build Python SWIG module" ON)
+if(BUILD_PYTHON)
+    add_subdirectory(python)
+endif()
diff --git a/cpp/wedpr-transport/sdk-wrapper/python/CMakeLists.txt b/cpp/wedpr-transport/sdk-wrapper/python/CMakeLists.txt
new file mode 100644
index 00000000..1eaab1a7
--- /dev/null
+++ b/cpp/wedpr-transport/sdk-wrapper/python/CMakeLists.txt
@@ -0,0 +1,54 @@
+file(GLOB_RECURSE SRCS *.i)
+set_source_files_properties(${SRCS} PROPERTIES CPLUSPLUS ON)
+
+swig_add_library(
+        ${WEDPR_PYTHON_TRANSPORT} 
+        TYPE MODULE
+        LANGUAGE python
+        OUTPUT_DIR ${WEDPR_PYTHON_TRANSPORT_DIR}
+        SOURCES ${SRCS}
+)
+ 
+message("#### Python3_INCLUDE_DIRS: ${Python3_INCLUDE_DIRS}")
+target_include_directories(
+        ${WEDPR_PYTHON_TRANSPORT}
+        PRIVATE
+        ../include
+        ${Python3_INCLUDE_DIRS}
+  )
+set_property(TARGET ${WEDPR_PYTHON_TRANSPORT} PROPERTY SWIG_USE_TARGET_INCLUDE_DIRECTORIES ON)
+
+# note: macOS is APPLE and also UNIX !
+if(APPLE)
+  set_property(TARGET ${WEDPR_PYTHON_TRANSPORT} APPEND PROPERTY
+    LINK_FLAGS "-flat_namespace -undefined suppress"
+    )
+    set_target_properties(${WEDPR_PYTHON_TRANSPORT} PROPERTIES
+      SUFFIX ".so"
+      INSTALL_RPATH "@loader_path;@loader_path/../../${WEDPR_PYTHON_TRANSPORT}/.libs"
+    )
+elseif(UNIX)
+  set_target_properties(${WEDPR_PYTHON_TRANSPORT} PROPERTIES
+    INSTALL_RPATH "$ORIGIN:$ORIGIN/../../${WEDPR_PYTHON_TRANSPORT}/.libs"
+    )
+endif()
+target_link_libraries(${WEDPR_PYTHON_TRANSPORT} PRIVATE ${FRONT_TARGET})
+
+SET(LIBRARY_OUTPUT_PATH ${WEDPR_PYTHON_TRANSPORT_DIR}/)
+
+# Variable PYTHON_LIBRARIES can contains keyword `optimized`
+# which won't be interpreted inside a generator expression.
+# i.e. we can't use: $<$<PLATFORM_ID:Windows>:${PYTHON_LIBRARIES}>
+# see: https://cmake.org/cmake/help/git-stage/command/target_link_libraries.html#command:target_link_libraries
+if(MSVC)
+  target_link_libraries(${WEDPR_PYTHON_TRANSPORT} PRIVATE ${Python3_LIBRARIES})
+endif()
+
+# Configure setup.py and copy to output directory
+file(GENERATE OUTPUT ${WEDPR_PYTHON_TRANSPORT_DIR}/__init__.py CONTENT "__version__ = \"${PYTHON_TOOLKIT_VERSION}\"\n")
+set(SETUP_PY_IN ${CMAKE_CURRENT_SOURCE_DIR}/setup.py.in)
+set(SETUP_PY_OUT ${WEDPR_PYTHON_TRANSPORT_DIR}/setup.py)
+configure_file(${SETUP_PY_IN} ${SETUP_PY_OUT})
+
+message(STATUS "CMAKE_INSTALL_INCLUDEDIR => ${CMAKE_INSTALL_INCLUDEDIR}")
+message(STATUS "CMAKE_CURRENT_SOURCE_DIR => ${CMAKE_CURRENT_SOURCE_DIR}")
\ No newline at end of file
diff --git a/cpp/wedpr-transport/sdk-wrapper/python/setup.py.in b/cpp/wedpr-transport/sdk-wrapper/python/setup.py.in
new file mode 100644
index 00000000..b2ec003f
--- /dev/null
+++ b/cpp/wedpr-transport/sdk-wrapper/python/setup.py.in
@@ -0,0 +1,35 @@
+import setuptools.command.install
+import shutil
+from distutils.sysconfig import get_python_lib
+
+
+class CompiledLibInstall(setuptools.command.install.install):
+    """
+    Specialized install to install to python libs
+    """
+
+    def run(self):
+        """
+        Run method called by setup
+        :return:
+        """
+        # Get filenames from CMake variable
+        filenames = '${PYTHON_INSTALL_FILES}'.split(';')
+
+        # Directory to install to
+        install_dir = get_python_lib()
+
+        # Install files
+        [shutil.copy(filename, install_dir) for filename in filenames]
+
+
+if __name__ == '__main__':
+    setuptools.setup(
+        name='wedpr-python-transport',
+        version='1.0.0-rc1',
+        packages=['wedpr-python-transport'],
+        license='Apache License 2.0',
+        author='wedpr',
+        author_email='wedpr@webank.com',
+        cmdclass={'install': CompiledLibInstall}
+    )
diff --git a/cpp/wedpr-transport/sdk-wrapper/python/swig/wedpr_python_transport.i b/cpp/wedpr-transport/sdk-wrapper/python/swig/wedpr_python_transport.i
new file mode 100644
index 00000000..d65250d7
--- /dev/null
+++ b/cpp/wedpr-transport/sdk-wrapper/python/swig/wedpr_python_transport.i
@@ -0,0 +1,49 @@
+%module wedpr_python_toolkit
+
+%include <stdint.i>
+%include <cpointer.i>
+%include <std_vector.i>
+%include <std_string.i>
+%include <std_shared_ptr.i>
+
+
+%shared_ptr(ppc::front::FrontConfig);
+%shared_ptr(bcos::Error);
+%shared_ptr(ppc::protocol::Message);
+%shared_ptr(ppc::protocol::MessageOptionalHeader)
+%shared_ptr(ppc::sdk::Transport);
+
+%{
+#define SWIG_FILE_WITH_INIT
+#include <stdint.h>
+#include "wedpr-transport/sdk/TransportBuilder.h"
+#include "wedpr-transport/sdk/Transport.h"
+#include "ppc-framework/front/IFront.h"
+#include "ppc-framework/protocol/RouteType.h"
+#include "ppc-framework/front/FrontConfig.h"
+#include <bcos-utilities/Error.h>
+%}
+
+namespace ppc::front{
+    class FrontConfig;
+    class IFront;
+    class FrontImpl;
+    class FrontBuilderImpl;
+    class RouteType;
+    class GatewayEndPoint;
+}
+
+namespace ppc::sdk{
+    class Transport;
+    class TransportBuilder;
+}
+
+%template(SharedFrontConfig) std::shared_ptr<ppc::front::FrontConfig>;
+%template(SharedBcosError) std::shared_ptr<bcos::Error>;
+%template(SharedMessage) std::shared_ptr<ppc::protocol::Message>;
+%template(SharedRouteInfo) std::shared_ptr<ppc::protocol::MessageOptionalHeader>;
+%template(SharedTransport) std::shared_ptr<ppc::sdk::Transport>;
+
+%include "wedpr-transport/sdk/TransportBuilder.h"
+%include "wedpr-transport/sdk/Transport.h"
+%include "ppc-framework/front/IFront.h"
\ No newline at end of file
diff --git a/cpp/wedpr-transport/sdk/ProTransportImpl.cpp b/cpp/wedpr-transport/sdk/ProTransportImpl.cpp
index 223d4c69..1573c0fa 100644
--- a/cpp/wedpr-transport/sdk/ProTransportImpl.cpp
+++ b/cpp/wedpr-transport/sdk/ProTransportImpl.cpp
@@ -18,16 +18,19 @@
  * @date 2024-09-04
  */
 #include "ProTransportImpl.h"
-#include "protobuf/src/v1/MessageImpl.h"
+#include "protocol/src/v1/MessageImpl.h"
 #include "wedpr-protocol/grpc/server/FrontServer.h"
 
 using namespace ppc::front;
 using namespace ppc::protocol;
-ProTransportImpl::ProTransportImpl(ppc::Front::FrontConfig::Ptr config)
+using namespace ppc::sdk;
+
+
+ProTransportImpl::ProTransportImpl(ppc::front::FrontConfig::Ptr config)
   : m_config(std::move(config))
 {
-    GrpcServerConfig{config->selfEndPoint()};
-    m_server = std::make_shared<GrpcServer>(GrpcServerConfig);
+    GrpcServerConfig grpcServerConfig{config->selfEndPoint()};
+    m_server = std::make_shared<GrpcServer>(grpcServerConfig);
 
     FrontFactory frontFactory;
     grpc::ChannelArguments channelConfig;
@@ -36,6 +39,9 @@ ProTransportImpl::ProTransportImpl(ppc::Front::FrontConfig::Ptr config)
     m_front = frontFactory.build(std::make_shared<NodeInfoFactory>(),
         std::make_shared<MessagePayloadBuilderImpl>(),
         std::make_shared<MessageOptionalHeaderBuilderImpl>(), gateway, config);
+
+    auto msgBuilder =
+        std::make_shared<MessageBuilderImpl>(std::make_shared<MessageHeaderBuilderImpl>());
     auto frontService = std::make_shared<FrontServer>(msgBuilder, m_front);
 
     // register the frontService
diff --git a/cpp/wedpr-transport/sdk/ProTransportImpl.h b/cpp/wedpr-transport/sdk/ProTransportImpl.h
index 628fed53..d32ba9e5 100644
--- a/cpp/wedpr-transport/sdk/ProTransportImpl.h
+++ b/cpp/wedpr-transport/sdk/ProTransportImpl.h
@@ -29,7 +29,7 @@ class ProTransportImpl : public Transport
 {
 public:
     using Ptr = std::shared_ptr<ProTransportImpl>;
-    ProTransportImpl(ppc::Front::FrontConfig::Ptr config);
+    ProTransportImpl(ppc::front::FrontConfig::Ptr config);
 
     void start() override
     {
@@ -43,6 +43,7 @@ class ProTransportImpl : public Transport
     }
 
 protected:
+    ppc::front::FrontConfig::Ptr m_config;
     ppc::protocol::GrpcServer::Ptr m_server;
 };
 }  // namespace ppc::sdk
\ No newline at end of file
diff --git a/cpp/wedpr-transport/sdk/Transport.h b/cpp/wedpr-transport/sdk/Transport.h
index eddb414f..cf9230fb 100644
--- a/cpp/wedpr-transport/sdk/Transport.h
+++ b/cpp/wedpr-transport/sdk/Transport.h
@@ -24,6 +24,7 @@ namespace ppc::sdk
 class Transport
 {
 public:
+    using Ptr = std::shared_ptr<Transport>;
     Transport() = default;
     virtual ~Transport() = default;
 
diff --git a/cpp/wedpr-transport/sdk/TransportBuilder.h b/cpp/wedpr-transport/sdk/TransportBuilder.h
index a113310e..f0492822 100644
--- a/cpp/wedpr-transport/sdk/TransportBuilder.h
+++ b/cpp/wedpr-transport/sdk/TransportBuilder.h
@@ -36,7 +36,7 @@ class TransportBuilder
     TransportBuilder() = default;
     virtual ~TransportBuilder() = default;
 
-    Transport::Ptr build(SDKMode mode, ppc::Front::FrontConfig::Ptr config,
+    Transport::Ptr build(SDKMode mode, ppc::front::FrontConfig::Ptr config,
         ppc::gateway::IGateway::Ptr const& gateway)
     {
         switch (mode)
@@ -50,7 +50,7 @@ class TransportBuilder
             return std::make_shared<ProTransportImpl>(config);
         }
         default:
-            throw std::exception("Unsupported sdk mode, only support AIR/PRO mode!");
+            throw std::runtime_error("Unsupported sdk mode, only support AIR/PRO mode!");
         }
     }
 };
diff --git a/cpp/wedpr-transport/sdk/TransportImpl.h b/cpp/wedpr-transport/sdk/TransportImpl.h
index 47222e4b..c32e20d3 100644
--- a/cpp/wedpr-transport/sdk/TransportImpl.h
+++ b/cpp/wedpr-transport/sdk/TransportImpl.h
@@ -30,17 +30,17 @@ namespace ppc::sdk
 class TransportImpl : public Transport
 {
 public:
-    TransportImpl(ppc::Front::FrontConfig::Ptr config, ppc::gateway::IGateway::Ptr const& gateway)
+    TransportImpl(ppc::front::FrontConfig::Ptr config, ppc::gateway::IGateway::Ptr const& gateway)
       : m_config(std::move(config))
     {
-        FrontFactory frontFactory;
-        m_front = frontFactory.build(std::make_shared<NodeInfoFactory>(),
-            std::make_shared<MessagePayloadBuilderImpl>(),
-            std::make_shared<MessageOptionalHeaderBuilderImpl>(), gateway, m_config);
+        ppc::front::FrontFactory frontFactory;
+        m_front = frontFactory.build(std::make_shared<ppc::protocol::NodeInfoFactory>(),
+            std::make_shared<ppc::protocol::MessagePayloadBuilderImpl>(),
+            std::make_shared<ppc::protocol::MessageOptionalHeaderBuilderImpl>(), gateway, m_config);
     }
     ~TransportImpl() override = default;
 
 protected:
-    ppc::Front::FrontConfig::Ptr m_config;
+    ppc::front::FrontConfig::Ptr m_config;
 };
 }  // namespace ppc::sdk