Update src/streamlit_app.py

src/streamlit_app.py

@@ -8,10 +8,15 @@ import os
 os.environ["OPENAI_API_KEY"] = st.secrets["OPENAI_API_KEY"]
 os.environ['OPENAI_API_BASE'] = 'https://openrouter.ai/api/v1'
 
+if not api_key:
+    st.error("API key not found. Please set OPENAI_API_KEY in Space secrets.")
+    st.stop()
+
 # Set up the model
 llm = ChatOpenAI(
     temperature=0.7,
-    model_name="deepseek/deepseek-chat-v3-0324:free"  # correct model path
+    model_name="deepseek/deepseek-chat-v3-0324:free",
+    openai_api_key=api_key,
 )
 
 # Set up memory