diff --git a/examples/main.cpp b/examples/main.cpp
index 497943a4..0e72dd53 100644
--- a/examples/main.cpp
+++ b/examples/main.cpp
@@ -1,26 +1,11 @@
 // Copyright (c) Tribufu. All Rights Reserved.
 
 #include <iostream>
-
 #include <tribufu/client.h>
 
 using namespace tribufu;
 
 int main(int argc, char **argv)
 {
-    auto client = new TribufuClient(0, "client_secret");
-    std::cout << "client_id: " << client->get_client_id() << std::endl;
-
-    json json_obj = {
-        {"nome", "John"},
-        {"idade", 25},
-        {"cidade", "Exemplo"}};
-
-    std::string json_str = json_obj.dump(4);
-
-    std::cout << json_str << std::endl;
-
-    //client->get_token();
-
     return 0;
 }
diff --git a/include/tribufu.h b/include/tribufu.h
index 6e09a83e..70288c3a 100644
--- a/include/tribufu.h
+++ b/include/tribufu.h
@@ -3,3 +3,4 @@
 #pragma once
 
 #include <tribufu/client.h>
+#include <tribufu/json.h>
diff --git a/include/tribufu/prelude.h b/include/tribufu/prelude.h
index 16649115..2dcc44b4 100644
--- a/include/tribufu/prelude.h
+++ b/include/tribufu/prelude.h
@@ -2,7 +2,7 @@
 
 #pragma once
 
-#include <tribufu/json.h>
 #include <tribufu/macros.h>
 #include <tribufu/native.h>
 #include <tribufu/platform.h>
+#include <tribufu/std.h>
diff --git a/include/tribufu/servers/server.h b/include/tribufu/servers/server.h
index f057f148..d44d3ae7 100644
--- a/include/tribufu/servers/server.h
+++ b/include/tribufu/servers/server.h
@@ -3,6 +3,7 @@
 #pragma once
 
 #include <tribufu/prelude.h>
+#include <tribufu/json.h>
 
 namespace tribufu
 {
diff --git a/include/tribufu/std.h b/include/tribufu/std.h
new file mode 100644
index 00000000..12fda2d6
--- /dev/null
+++ b/include/tribufu/std.h
@@ -0,0 +1,24 @@
+// Copyright (c) Tribufu. All Rights Reserved.
+
+#pragma once
+
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef TRIBUFU_CPP
+#include <algorithm>
+#include <cstdarg>
+#include <cstdint>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <new>
+#include <ostream>
+#include <sstream>
+#include <string>
+#include <utility>
+#endif
diff --git a/include/tribufu/users/profile.h b/include/tribufu/users/profile.h
index 4e150ef9..948e939f 100644
--- a/include/tribufu/users/profile.h
+++ b/include/tribufu/users/profile.h
@@ -3,6 +3,7 @@
 #pragma once
 
 #include <tribufu/prelude.h>
+#include <tribufu/json.h>
 
 namespace tribufu
 {