diff --git a/docs/api.md b/docs/api.md
index 5e846f5..cff9eef 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -23,57 +23,48 @@ This document provides detailed information on how to use and implement the APIs
   }
   ```
 
-## API 2
-- Description: This API provides functionality for ABC operations.
+## Log In (Recommended)
+- Description: This API allows users to log in to their account through the browser.
 - Usage: To use this API, follow these steps:
-  1. Step 1: Import the API module using `require('api2')`.
-  2. Step 2: Call the `performABC()` function with the required parameters.
-- Example:
-  ```javascript
-  const api = require('api2');
-  
-  api.performABC(param1, param2);
+  1. Step 1: Redirect the user to the log-in page using the `/login` route.
+  2. Step 2: Enter the user's credentials and submit the form.
+  3. Step 3: A JSON response will be returned with the user's information.
+- Payload Example:
+  ```JSON
+  {
+    "id": 123,
+    "username": "user123",
+    "email": "rr@ttt.yy",
+    "access_level": 1,
+    "password": "password123"
+  }
   ```
 
-## API 3
-- Description: This API offers advanced features for DEF operations.
-- Sub-APIs:
-  - Sub-API 3.1: Provides additional functionality for DEF operations.
-  - Sub-API 3.2: Implements advanced algorithms for DEF operations.
-
-### Sub-API 3.1
-- Description: This sub-API extends the functionality of API 3 for DEF operations.
-- Usage: To use this sub-API, follow these steps:
-  1. Step 1: Import the sub-API module using `require('api3/subapi1')`.
-  2. Step 2: Call the `performDEF()` function with the required parameters.
-- Example:
-  ```javascript
-  const subapi = require('api3/subapi1');
-  
-  subapi.performDEF(param1, param2);
-  ```
-
-### Sub-API 3.2
-- Description: This sub-API implements advanced algorithms for DEF operations.
-- Usage: To use this sub-API, follow these steps:
-  1. Step 1: Import the sub-API module using `require('api3/subapi2')`.
-  2. Step 2: Call the `performAdvancedDEF()` function with the required parameters.
-- Example:
-  ```javascript
-  const subapi = require('api3/subapi2');
-  
-  subapi.performAdvancedDEF(param1, param2);
-  ```
-
-## API 4
-- Description: This API provides utility functions for GHI operations.
+## API Sign Up
+- Description: This API allows users to sign up for a new account programmatically.
 - Usage: To use this API, follow these steps:
-  1. Step 1: Import the API module using `require('api4')`.
-  2. Step 2: Call the desired utility functions provided by the API.
-- Example:
-  ```javascript
-  const api = require('api4');
-  
-  api.utilityFunction1();
-  api.utilityFunction2();
+  1. Step 1: API call to the `/api/signup?username={newUser}&email={Email}&password={Password}` endpoint with the required parameters.
+  2. Step 2: The server will create a new user account and return a JSON response.
+- Payload Example:
+  ```JSON
+  {
+    "status": "success",
+    "message": "User created"
+  }
   ```
+
+## API Log In
+- Description: This API allows users to log in to their account programmatically.
+- Usage: To use this API, follow these steps:
+  1. Step 1: API call to the `/api/login?username={user}&password={password}` endpoint with the required parameters.
+  2. Step 3: The server will authenticate the user and return a JSON response.
+- Payload Example:
+  ```JSON
+  {
+    "id": 123,
+    "username": "user123",
+    "email": "rr@ttt.yy",
+    "access_level": 1,
+    "password": "password123"
+  }
+  ```
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