Update app.py

app.py

@@ -64,6 +64,7 @@ load_dotenv()
 
 # HuggingFace API Token
 HF_TOKEN = os.getenv("HF_TOKEN")
+OPENAPI_KEY = os.getenv("OPENAPI_KEY")
 if not HF_TOKEN:
     logger.error("HF_TOKEN is not set in the environment variables.")
     exit(1)
@@ -135,7 +136,7 @@ retriever = db.as_retriever(
 llm = ChatOpenAI(
     base_url="https://openrouter.ai/api/v1",
     temperature=0,
-    api_key=HF_TOKEN,
+    api_key=OPENAPI_KEY,
     model="google/gemini-2.0-flash-exp:free",
     max_tokens=None,
     timeout=None