diff --git a/cjson/cjson.c b/cjson/cjson.c
new file mode 100644
index 0000000..cd5f205
--- /dev/null
+++ b/cjson/cjson.c
@@ -0,0 +1,17 @@
+#include <cjson/cJSON.h>
+#include <stdio.h>
+
+char *build_set_level_command(int level) {
+    cJSON *root = cJSON_CreateObject();
+    cJSON_AddStringToObject(root, "cmd", "set_level");
+    cJSON_AddNumberToObject(root, "level", level);
+
+    char *message = cJSON_PrintUnformatted(root);
+    cJSON_Delete(root);
+    return message; // Remember to free this when done!
+}
+
+int main(void) {
+    printf("%s\n", build_set_level_command(10));
+    return 0;
+}