diff --git a/app.py b/app.py
index a21b187..7d4fec4 100644
--- a/app.py
+++ b/app.py
@@ -1,7 +1,9 @@
-import os
-
+from dotenv import load_dotenv
 from flask import Flask
 
+from dto.requests import GameStartRequest
+from services.julius_baer_api_client import JuliusBaerApiClient
+
 app = Flask(__name__)
 
 
@@ -11,4 +13,9 @@ def hello_world():  # put application's code here
 
 
 if __name__ == '__main__':
+    jb_client = JuliusBaerApiClient()
+    game_start_request = GameStartRequest("Welch")
+    res = jb_client.start_game(game_start_request)
+    print(res)
+
     app.run()
diff --git a/config.py b/config.py
index 35ab4f7..9e8a61a 100644
--- a/config.py
+++ b/config.py
@@ -1,19 +1,8 @@
-from flask.cli import load_dotenv
+import os
 
+from dotenv import load_dotenv
 
-class Config:
-    """
-    Configuration manager for the Julius Baer API client.
-
-    Reads configuration from a YAML file and overrides values
-    with environment variables when available.
-    """
-
-    def __init__(self):
-        """
-        Initialize the configuration manager.
-
-        Args:
-            config_file_path: Path to the YAML configuration file. Defaults to "config.yaml".
-        """
-        load_dotenv()
\ No newline at end of file
+load_dotenv()
+API_URI = str(os.getenv("API_URI") or "")
+API_KEY = str(os.getenv("API_KEY") or "")
+API_TEAM = str(os.getenv("API_TEAM") or "")
\ No newline at end of file
diff --git a/services/julius_baer_api_client.py b/services/julius_baer_api_client.py
index 2717105..264f2c8 100644
--- a/services/julius_baer_api_client.py
+++ b/services/julius_baer_api_client.py
@@ -1,27 +1,22 @@
-import requests
-import uuid
-from typing import Dict, Any, Optional
+from typing import Dict, Any
 
+import requests
+
+import config
 from dto.requests import GameStartRequest, GameDecisionRequest
 
 
-class GameApiClient:
+class JuliusBaerApiClient:
     """
-    Client for interacting with the Game API service.
+    Client for interacting with the Julius Baer API service.
 
     Provides methods to start a game and make game decisions.
     """
 
     def __init__(self):
-        """
-        Initialize the Game API client.
-
-        Args:
-            base_url: Base URL for the API service. Defaults to "http://localhost:5000".
-        """
-        # TODO: import base_url from config self.base_url = base_url.rstrip('/')
-        self.session_id = None
-        self.client_id = None
+        self.api_uri = config.API_URI
+        self.api_key = config.API_KEY
+        self.api_team = config.API_TEAM
 
     def start_game(self, game_start_request: GameStartRequest) -> Dict[str, Any]:
         """
@@ -33,10 +28,15 @@ class GameApiClient:
         Returns:
             Dict containing the game start response with session_id, player_id, etc.
         """
-        url = f"{self.base_url}/game/start"
+        url = f"{self.api_uri}/game/start"
         payload = {"player_name": game_start_request.player_name}
 
-        response = requests.post(url, json=payload)
+        headers = {
+            "x-api-key": self.api_key,
+            "Content-Type": "application/json"
+        }
+
+        response = requests.post(url, json=payload, headers=headers)
         response.raise_for_status()  # Raise exception for HTTP errors
 
         data = response.json()
@@ -71,7 +71,8 @@ class GameApiClient:
         client_id = game_decision_request.client_id or self.client_id
 
         if not session_id or not client_id:
-            raise ValueError("Session ID and Client ID are required. Either provide them explicitly or call start_game first.")
+            raise ValueError(
+                "Session ID and Client ID are required. Either provide them explicitly or call start_game first.")
 
         url = f"{self.base_url}/game/decision"
         payload = {