diff --git a/py-kivy/API.md b/py-kivy/API.md
index 5ce3036..5433823 100644
--- a/py-kivy/API.md
+++ b/py-kivy/API.md
@@ -535,19 +535,22 @@ Error response body:
 
 ```mermaid
 graph TD
-    A[API v1] --> B[Authentication]
-    A --> C[Items]
-    A --> D[Orders]
-    A --> E[Users]
-
+    subgraph Authentication
+    B[Authentication]
     B --> B1["POST /token"]
+    end
 
+    subgraph Items
+    C[Items]
     C --> C1["POST /items"]
     C --> C2["GET /items"]
     C --> C3["GET /items/:item_id"]
     C --> C4["PUT /items/:item_id"]
     C --> C5["DELETE /items/:item_id"]
+    end
 
+    subgraph Orders
+    D[Orders]
     D --> D1["POST /orders"]
     D --> D2["GET /orders"]
     D --> D3["GET /orders/:order_id"]
@@ -555,12 +558,16 @@ graph TD
     D --> D5["DELETE /orders/:order_id"]
     D --> D6["POST /orders/:order_id/process_payment"]
     D --> D7["POST /orders/:order_id/apply_discount"]
+    end
 
+    subgraph Users
+    E[Users]
     E --> E1["POST /users"]
     E --> E2["GET /users/me"]
     E --> E3["GET /users"]
     E --> E4["PUT /users/:user_id"]
     E --> E5["DELETE /users/:user_id"]
+    end
 
     class A main;
     class B auth;
@@ -568,3 +575,24 @@ graph TD
     class D orders;
     class E users;
 ```
+
+| Category | Method | Route | Description |
+|----------|--------|-------|-------------|
+| **Authentication** | POST | `/token` | Obtain JWT access token |
+| **Items** | POST | `/items` | Create a new item |
+| | GET | `/items` | Get all items |
+| | GET | `/items/{item_id}` | Get a specific item |
+| | PUT | `/items/{item_id}` | Update an item |
+| | DELETE | `/items/{item_id}` | Delete an item |
+| **Orders** | POST | `/orders` | Create a new order |
+| | GET | `/orders` | Get all orders |
+| | GET | `/orders/{order_id}` | Get a specific order |
+| | PUT | `/orders/{order_id}` | Update an order |
+| | DELETE | `/orders/{order_id}` | Delete an order |
+| | POST | `/orders/{order_id}/process_payment` | Process payment for an order |
+| | POST | `/orders/{order_id}/apply_discount` | Apply discount to an order |
+| **Users** | POST | `/users` | Register a new user |
+| | GET | `/users/me` | Get current user |
+| | GET | `/users` | Get all users |
+| | PUT | `/users/{user_id}` | Update a user |
+| | DELETE | `/users/{user_id}` | Delete a user |