diff --git a/uncloud/uncloud/urls.py b/uncloud/uncloud/urls.py
index 341f81a..358e4c7 100644
--- a/uncloud/uncloud/urls.py
+++ b/uncloud/uncloud/urls.py
@@ -29,6 +29,7 @@ router.register(r'vm/snapshot', vmviews.VMSnapshotProductView, basename='VMSnaps
 router.register(r'vm/vm', vmviews.VMProductViewSet, basename='vmproduct')
 
 # Pay
+router.register(r'user', payviews.UserViewSet, basename='user')
 router.register(r'bill', payviews.BillViewSet, basename='bill')
 router.register(r'payment', payviews.PaymentViewSet, basename='payment')
 
diff --git a/uncloud/uncloud_api/views.py b/uncloud/uncloud_api/views.py
index c90b963..18cc324 100644
--- a/uncloud/uncloud_api/views.py
+++ b/uncloud/uncloud_api/views.py
@@ -43,9 +43,13 @@ import re
 #         return Response(products)
 
 
-class UserViewSet(viewsets.ModelViewSet):
+class UserViewSet(viewsets.ReadOnlyModelViewSet):
     serializer_class = UserSerializer
     permission_classes = [permissions.IsAuthenticated]
 
     def get_queryset(self):
         return self.request.user
+
+    @action(detail=True)
+    def balance(self, request):
+        return Response(status=status.HTTP_204_NO_CONTENT)
diff --git a/uncloud/uncloud_pay/serializers.py b/uncloud/uncloud_pay/serializers.py
index f4fd565..5bb22ec 100644
--- a/uncloud/uncloud_pay/serializers.py
+++ b/uncloud/uncloud_pay/serializers.py
@@ -1,3 +1,4 @@
+from django.contrib.auth import get_user_model
 from rest_framework import serializers
 from .models import Bill, Payment
 
@@ -10,3 +11,11 @@ class PaymentSerializer(serializers.ModelSerializer):
     class Meta:
         model = Payment
         fields = ['owner', 'amount', 'source', 'timestamp']
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = get_user_model()
+        fields = ['username', 'email']
+
+    def get_balance(self, obj):
+        return 666
diff --git a/uncloud/uncloud_pay/views.py b/uncloud/uncloud_pay/views.py
index d824d27..5111f6c 100644
--- a/uncloud/uncloud_pay/views.py
+++ b/uncloud/uncloud_pay/views.py
@@ -1,9 +1,11 @@
 from django.shortcuts import render
+from django.contrib.auth import get_user_model
 from rest_framework import viewsets, permissions, status
 from rest_framework.response import Response
+from rest_framework.decorators import action
 
 from .models import Bill, Payment
-from .serializers import BillSerializer, PaymentSerializer
+from .serializers import BillSerializer, PaymentSerializer, UserSerializer
 from datetime import datetime
 
 ###
@@ -38,6 +40,17 @@ class PaymentViewSet(viewsets.ReadOnlyModelViewSet):
     def get_queryset(self):
         return Payment.objects.filter(owner=self.request.user)
 
+class UserViewSet(viewsets.ReadOnlyModelViewSet):
+    serializer_class = UserSerializer
+    permission_classes = [permissions.IsAuthenticated]
+
+    def get_queryset(self):
+        return get_user_model().objects.all()
+
+    @action(detail=True)
+    def balance(self, request):
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
 ###
 # Admin views.