diff --git a/ptstation-register/backend/ngrok_url.txt b/ptstation-register/backend/ngrok_url.txt
new file mode 100644
index 0000000..364e437
--- /dev/null
+++ b/ptstation-register/backend/ngrok_url.txt
@@ -0,0 +1 @@
+https://f2f9-183-241-154-140.ngrok-free.app
\ No newline at end of file