diff --git a/homeassistant/components/cloud/__init__.py b/homeassistant/components/cloud/__init__.py
index 2e324f06738..3e3d6f975e9 100644
--- a/homeassistant/components/cloud/__init__.py
+++ b/homeassistant/components/cloud/__init__.py
@@ -118,6 +118,16 @@ async def async_delete_cloudhook(hass, webhook_id: str) -> None:
     await hass.data[DOMAIN].cloudhooks.async_delete(webhook_id)
 
 
+@bind_hass
+@callback
+def async_remote_ui_url(hass) -> str:
+    """Get the remote UI URL."""
+    if not async_is_logged_in(hass):
+        raise CloudNotAvailable
+
+    return "https://" + hass.data[DOMAIN].remote.instance_domain
+
+
 def is_cloudhook_request(request):
     """Test if a request came from a cloudhook.
 
diff --git a/homeassistant/components/mobile_app/const.py b/homeassistant/components/mobile_app/const.py
index d38df31b214..3aa4626da29 100644
--- a/homeassistant/components/mobile_app/const.py
+++ b/homeassistant/components/mobile_app/const.py
@@ -17,6 +17,7 @@ STORAGE_KEY = DOMAIN
 STORAGE_VERSION = 1
 
 CONF_CLOUDHOOK_URL = 'cloudhook_url'
+CONF_REMOTE_UI_URL = 'remote_ui_url'
 CONF_SECRET = 'secret'
 CONF_USER_ID = 'user_id'
 
diff --git a/homeassistant/components/mobile_app/http_api.py b/homeassistant/components/mobile_app/http_api.py
index 8076d217cac..2ae8f441e52 100644
--- a/homeassistant/components/mobile_app/http_api.py
+++ b/homeassistant/components/mobile_app/http_api.py
@@ -5,7 +5,9 @@ from typing import Dict
 from aiohttp.web import Response, Request
 
 from homeassistant.auth.util import generate_secret
-from homeassistant.components.cloud import async_create_cloudhook
+from homeassistant.components.cloud import (async_create_cloudhook,
+                                            async_remote_ui_url,
+                                            CloudNotAvailable)
 from homeassistant.components.http import HomeAssistantView
 from homeassistant.components.http.data_validator import RequestDataValidator
 from homeassistant.const import (HTTP_CREATED, CONF_WEBHOOK_ID)
@@ -13,7 +15,8 @@ from homeassistant.const import (HTTP_CREATED, CONF_WEBHOOK_ID)
 from homeassistant.loader import get_component
 
 from .const import (ATTR_APP_COMPONENT, ATTR_DEVICE_ID,
-                    ATTR_SUPPORTS_ENCRYPTION, CONF_CLOUDHOOK_URL, CONF_SECRET,
+                    ATTR_SUPPORTS_ENCRYPTION, CONF_CLOUDHOOK_URL,
+                    CONF_REMOTE_UI_URL, CONF_SECRET,
                     CONF_USER_ID, DOMAIN, ERR_INVALID_COMPONENT,
                     REGISTRATION_SCHEMA)
 
@@ -67,8 +70,15 @@ class RegistrationsView(HomeAssistantView):
             hass.config_entries.flow.async_init(DOMAIN, context=ctx,
                                                 data=data))
 
+        remote_ui_url = None
+        try:
+            remote_ui_url = async_remote_ui_url(hass)
+        except CloudNotAvailable:
+            pass
+
         return self.json({
             CONF_CLOUDHOOK_URL: data.get(CONF_CLOUDHOOK_URL),
+            CONF_REMOTE_UI_URL: remote_ui_url,
             CONF_SECRET: data.get(CONF_SECRET),
             CONF_WEBHOOK_ID: data[CONF_WEBHOOK_ID],
         }, status_code=HTTP_CREATED)