diff --git a/README.md b/README.md
index 94d8a12..edbe8a1 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,15 @@ $ cd ~/catkin_ws
 $ catkin_make
 ```
 
+### 1.3 Test API
+
+```bash
+cd ~/catkin_ws/src/myCobotRos
+python3 scripts/test.py
+```
+
+If the myCobot color change to red, it's mean the API is working normally.
+
 ## 2. Package Modules
 
 ### 2.1 Nodes
diff --git a/scripts/test.py b/scripts/test.py
new file mode 100644
index 0000000..2860838
--- /dev/null
+++ b/scripts/test.py
@@ -0,0 +1,7 @@
+#!/usr/bin/env python3
+from pythonAPI.mycobot import MyCobot
+
+if __name__ == '__main__':
+    mycobot = MyCobot()
+    mycobot.set_color("ff0000")
+