diff --git a/thermion_dart/native/include/c_api/ThermionDartApi.h b/thermion_dart/native/include/c_api/ThermionDartApi.h
index 60512c9a..10714bac 100644
--- a/thermion_dart/native/include/c_api/ThermionDartApi.h
+++ b/thermion_dart/native/include/c_api/ThermionDartApi.h
@@ -41,18 +41,10 @@ extern "C"
 	EMSCRIPTEN_KEEPALIVE void Viewer_setMainCamera(TViewer *tViewer, TView *tView);	
 	EMSCRIPTEN_KEEPALIVE TSwapChain* Viewer_getSwapChainAt(TViewer *tViewer, int index);
 	EMSCRIPTEN_KEEPALIVE void Viewer_setViewRenderable(TViewer *viewer, TSwapChain *swapChain, TView* view, bool renderable);	
-
 	
 	// Engine
 	EMSCRIPTEN_KEEPALIVE TEngine *Viewer_getEngine(TViewer* viewer);
-	EMSCRIPTEN_KEEPALIVE TCamera *Engine_getCameraComponent(TEngine* tEngine, EntityId entityId);
-	EMSCRIPTEN_KEEPALIVE TTransformManager *Engine_getTransformManager(TEngine *engine);
-	EMSCRIPTEN_KEEPALIVE TRenderableManager *Engine_getRenderableManager(TEngine *engine);
-	EMSCRIPTEN_KEEPALIVE TLightManager *Engine_getLightManager(TEngine *engine);
-	EMSCRIPTEN_KEEPALIVE TEntityManager *Engine_getEntityManager(TEngine *engine);
-	
-	EMSCRIPTEN_KEEPALIVE TMaterial *Engine_buildMaterial(TEngine *tEngine, const uint8_t* materialData, size_t length);
-	EMSCRIPTEN_KEEPALIVE void Engine_destroyMaterial(TEngine *tEngine, TMaterial *tMaterial);
+
 	
 	EMSCRIPTEN_KEEPALIVE void clear_background_image(TViewer *viewer);
 	EMSCRIPTEN_KEEPALIVE void set_background_image(TViewer *viewer, const char *path, bool fillHeight);