diff --git a/cvat/apps/iam/serializers.py b/cvat/apps/iam/serializers.py
index 4c5ad7a50f3d..92277c4d3a92 100644
--- a/cvat/apps/iam/serializers.py
+++ b/cvat/apps/iam/serializers.py
@@ -24,6 +24,8 @@
 class RegisterSerializerEx(RegisterSerializer):
     first_name = serializers.CharField(required=False)
     last_name = serializers.CharField(required=False)
+    email_verification_required = serializers.BooleanField(read_only=True, default=True)
+    key = serializers.CharField(read_only=True, default=None, allow_null=True)
 
     def get_cleaned_data(self):
         data = super().get_cleaned_data()
diff --git a/cvat/apps/iam/views.py b/cvat/apps/iam/views.py
index 46fc1019a3a8..39ce9dfac784 100644
--- a/cvat/apps/iam/views.py
+++ b/cvat/apps/iam/views.py
@@ -98,8 +98,6 @@ def post(self, request, *args, **kwargs):
 class RegisterViewEx(RegisterView):
     def get_response_data(self, user):
         data = self.get_serializer(user).data
-        data['email_verification_required'] = True
-        data['key'] = None
         if allauth_settings.EMAIL_VERIFICATION != \
             allauth_settings.EmailVerificationMethod.MANDATORY:
             data['email_verification_required'] = False
diff --git a/cvat/schema.yml b/cvat/schema.yml
index e97fd8ff869e..9dad479906d2 100644
--- a/cvat/schema.yml
+++ b/cvat/schema.yml
@@ -9242,6 +9242,14 @@ components:
           type: string
         last_name:
           type: string
+        email_verification_required:
+          type: boolean
+          readOnly: true
+          default: true
+        key:
+          type: string
+          readOnly: true
+          nullable: true
       required:
       - username
     RegisterSerializerExRequest: