Update app.py

app.py

@@ -58,7 +58,7 @@ gr.load_openapi(
     base_url=\"{}\",
     paths={},
     methods={},
-    auth_token=\"{}\"
+    auth_token={}
 ).launch(mcp_server=True)
 """
 
@@ -143,6 +143,10 @@ def launch_mcp_server(openapi_spec_url, api_base_url, paths, methods, auth_token
             paths = None
         else:
             paths = f"[\"{paths}\"]"
+        if not auth_token:
+            auth_token = None
+        else:
+            auth_token = f"[\"{auth_token}\"]"
         create_hf_space(
             oauth_token.token, 
             space_name_box,