diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0a6144..6c67ce0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,8 @@ include(cmake/Common.cmake)
 
 # options
 
+include(cmake/Option.cmake)
+
 # flags
 
 if(OS_WIN)
@@ -88,6 +90,11 @@ set(MYNTEYE_PUBLIC_H
   ${CMAKE_CURRENT_SOURCE_DIR}/src/internal/strings.h
   ${CMAKE_CURRENT_SOURCE_DIR}/src/internal/times.h
 )
+if(WITH_API)
+  list(APPEND MYNTEYE_PUBLIC_H
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/api/api.h
+  )
+endif()
 
 if(OS_WIN)
   set(UVC_SRC src/uvc/uvc-wmf.cc)
@@ -119,6 +126,11 @@ set(MYNTEYE_SRCS
   src/device/device.cc
   src/device/device_s.cc
 )
+if(WITH_API)
+  list(APPEND MYNTEYE_SRCS
+    src/api/api.cc
+  )
+endif()
 
 set(MYNTEYE_LINKLIBS
   glog::glog
diff --git a/cmake/Option.cmake b/cmake/Option.cmake
new file mode 100644
index 0000000..4d6a275
--- /dev/null
+++ b/cmake/Option.cmake
@@ -0,0 +1,4 @@
+option(WITH_API "Build with API layer, need OpenCV" ON)
+
+message(STATUS "Options:")
+message(STATUS "  WITH_API: ${WITH_API}")
diff --git a/samples/CMakeLists.txt b/samples/CMakeLists.txt
index ff1c88f..713faec 100644
--- a/samples/CMakeLists.txt
+++ b/samples/CMakeLists.txt
@@ -6,6 +6,10 @@ get_filename_component(PRO_DIR ${PROJECT_SOURCE_DIR} DIRECTORY)
 
 include(${PRO_DIR}/cmake/Common.cmake)
 
+# options
+
+include(${PRO_DIR}/cmake/Option.cmake)
+
 # flags
 
 if(OS_WIN)
@@ -51,6 +55,12 @@ endif()
 
 set(OUT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/_output")
 
+# samples above api layer
+
+if(WITH_API)
+  add_subdirectory(api)
+endif()
+
 # samples above device layer
 
 add_subdirectory(device)
diff --git a/samples/api/CMakeLists.txt b/samples/api/CMakeLists.txt
new file mode 100644
index 0000000..a578bb7
--- /dev/null
+++ b/samples/api/CMakeLists.txt
@@ -0,0 +1,22 @@
+get_filename_component(DIR_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
+
+set_outdir(
+  "${OUT_DIR}/lib/${DIR_NAME}"
+  "${OUT_DIR}/lib/${DIR_NAME}"
+  "${OUT_DIR}/bin/${DIR_NAME}"
+)
+
+## camera_a
+
+add_executable(camera_a camera.cc)
+target_link_libraries(camera_a mynteye ${OpenCV_LIBS})
+target_create_scripts(camera_a DLL_SEARCH_PATHS
+  ${PRO_DIR}/_install/bin
+  ${OpenCV_LIB_SEARCH_PATH}
+)
+
+if(OS_WIN)
+  target_compile_definitions(camera_a
+    PUBLIC GLOG_NO_ABBREVIATED_SEVERITIES
+  )
+endif()
diff --git a/samples/api/camera.cc b/samples/api/camera.cc
new file mode 100644
index 0000000..d484623
--- /dev/null
+++ b/samples/api/camera.cc
@@ -0,0 +1,11 @@
+#include "mynteye/glog_init.h"
+
+#include "mynteye/api.h"
+
+MYNTEYE_USE_NAMESPACE
+
+int main(int argc, char *argv[]) {
+  glog_init _(argc, argv);
+
+  return 0;
+}
diff --git a/src/api/api.cc b/src/api/api.cc
new file mode 100644
index 0000000..043035e
--- /dev/null
+++ b/src/api/api.cc
@@ -0,0 +1,15 @@
+#include "api/api.h"
+
+#include <glog/logging.h>
+
+MYNTEYE_BEGIN_NAMESPACE
+
+API::API() {
+  VLOG(2) << __func__;
+}
+
+API::~API() {
+  VLOG(2) << __func__;
+}
+
+MYNTEYE_END_NAMESPACE
diff --git a/src/api/api.h b/src/api/api.h
new file mode 100644
index 0000000..12dc9fc
--- /dev/null
+++ b/src/api/api.h
@@ -0,0 +1,17 @@
+#ifndef MYNTEYE_API_H_  // NOLINT
+#define MYNTEYE_API_H_
+#pragma once
+
+#include "mynteye/mynteye.h"
+
+MYNTEYE_BEGIN_NAMESPACE
+
+class MYNTEYE_API API {
+ public:
+  API();
+  ~API();
+};
+
+MYNTEYE_END_NAMESPACE
+
+#endif  // MYNTEYE_API_H_ NOLINT