diff --git a/web_app/api/serializers/leaderboard.py b/web_app/api/serializers/leaderboard.py
index 8638e2bdd..37705c80d 100644
--- a/web_app/api/serializers/leaderboard.py
+++ b/web_app/api/serializers/leaderboard.py
@@ -8,10 +8,23 @@
 router = APIRouter()
 
 class UserLeaderboardItem(BaseModel):
+    """
+    Args:
+        db (Session): Database session dependency.
+
+    Returns:
+        UserLeaderboardResponse: Response containing the leaderboard data.
+    """
     wallet_id: str
     positions_number: int
 
 class UserLeaderboardResponse(BaseModel):
+    """
+    UserLeaderboardResponse is a model representing the response for a user leaderboard.
+
+    Attributes:
+        leaderboard (List[UserLeaderboardItem]): A list of user leaderboard items.
+    """
     leaderboard: List[UserLeaderboardItem]
 
 @router.get(
diff --git a/web_app/db/crud/leaderborad.py b/web_app/db/crud/leaderborad.py
index ea0fe2e28..381cd39c7 100644
--- a/web_app/db/crud/leaderborad.py
+++ b/web_app/db/crud/leaderborad.py
@@ -7,7 +7,16 @@
 logger = logging.getLogger(__name__)
 
 class LeaderboardCRUD:
+    """
+    A class used to perform CRUD operations related to the leaderboard.
+    """
     def __init__(self, session: Session):
+        """
+        Initializes a new instance of the class.
+
+        Args:
+            session (Session): The database session to be used for database operations.
+        """
         self.Session = session
 
     def get_top_users_by_positions(self) -> list[dict]: