diff --git a/helper/.env.example b/helper/.env.example
new file mode 100644
index 0000000..110ee13
--- /dev/null
+++ b/helper/.env.example
@@ -0,0 +1,18 @@
+CALL_HELPER_SHARED_SECRET=replace-with-same-secret-as-main-app
+
+PUBLIC_BASE=https://calls.backend-3.com
+HELPER_LOG_LEVEL=info
+HELPER_DEFAULT_ROUTE_MODE=direct
+
+ENABLE_OVERLAY_METADATA=1
+
+OVERLAY_YGG_ENABLED=0
+OVERLAY_YGG_BRIDGE_WSS=
+OVERLAY_YGG_BRIDGE_LABEL=ygg-bridge
+
+OVERLAY_I2P_ENABLED=0
+OVERLAY_I2P_BRIDGE_HTTPS=
+OVERLAY_I2P_BRIDGE_LABEL=i2p-bridge
+
+RELAY_ENABLED=1
+RELAY_WSS=
\ No newline at end of file