diff --git a/.gitignore b/.gitignore
index 70ba6af..3a19fd1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,6 @@ src/*
 .cache
 *.egg
 .idea
+env/
+venv/
 
diff --git a/dadata/client.py b/dadata/client.py
index c0c401a..7c99451 100644
--- a/dadata/client.py
+++ b/dadata/client.py
@@ -145,37 +145,37 @@ def __init__(self, *args, **kwargs):
 Clean Entities
 """
 class Address(ApiURL):
-    url_postfix = '/address'
+    url_postfix = '/address/'
     limit = ADDRESS_LIMIT
 
 
 class Phone(ApiURL):
-    url_postfix = '/phone'
+    url_postfix = '/phone/'
     limit = PHONE_LIMIT
 
 
 class Passport(ApiURL):
-    url_postfix = '/passport'
+    url_postfix = '/passport/'
     limit = PASSPORT_LIMIT
 
 
 class FIO(ApiURL):
-    url_postfix = '/name'
+    url_postfix = '/name/'
     limit = FIO_LIMIT
 
 
 class EMail(ApiURL):
-    url_postfix = '/email'
+    url_postfix = '/email/'
     limit = EMAIL_LIMIT
 
 
 class Date(ApiURL):
-    url_postfix = '/birthdate'
+    url_postfix = '/birthdate/'
     limit = DATE_LIMIT
 
 
 class Auto(ApiURL):
-    url_postfix = '/vehicle'
+    url_postfix = '/vehicle/'
     limit = AUTO_LIMIT
 
 
@@ -200,27 +200,27 @@ def __init__(self, *args, **kwargs):
 Suggestion Entities
 """
 class S_Address(SuggestionApiURL):
-    url_postfix = '/address'
+    url_postfix = '/address/'
     limit = ADDRESS_LIMIT
 
 
 class S_Party(SuggestionApiURL):
-    url_postfix = '/party'
+    url_postfix = '/party/'
     limit = SUGGESTIONS_LIMIT
 
 
 class S_Bank(SuggestionApiURL):
-    url_postfix = '/bank'
+    url_postfix = '/bank/'
     limit = SUGGESTIONS_LIMIT
 
 
 class S_FIO(SuggestionApiURL):
-    url_postfix = '/name'
+    url_postfix = '/name/'
     limit = FIO_LIMIT
 
 
 class S_EMail(SuggestionApiURL):
-    url_postfix = '/email'
+    url_postfix = '/email/'
     limit = EMAIL_LIMIT
 
 
diff --git a/requirements.txt b/requirements.txt
index f229360..1027114 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,4 @@
 requests
+requests_mock
+pytest
+mock
diff --git a/tests/test_address.py b/tests/test_address.py
index be93c4c..928d55b 100644
--- a/tests/test_address.py
+++ b/tests/test_address.py
@@ -99,7 +99,7 @@ def setUp(self):
         )
         adapter = requests_mock.Adapter()
         adapter.register_uri('POST',
-                             'mock://api/v2/clean/address',
+                             'mock://api/v2/clean/address/',
                              request_headers={'Authorization': 'Token key', 'X-Secret':'secret'},
                              text=ADDRESS_RESPONSE)
         self.client.session.mount('mock', adapter)
diff --git a/tests/test_suggestions.py b/tests/test_suggestions.py
index 6c40808..d15ceb8 100644
--- a/tests/test_suggestions.py
+++ b/tests/test_suggestions.py
@@ -6,7 +6,7 @@ class SuggestionsTest(CommonTestCase):
     def test_suggestion_url(self):
         client = self.client
         # self.assertEqual(client.suggestions.address.url, "https://suggestions.dadata.ru/suggestions/api/4_1/rs/suggest/address")
-        self.assertEqual(client.suggestions.address.url, "https://dadata.ru/api/v2/suggest/address")
+        self.assertEqual(client.suggestions.address.url, "https://dadata.ru/api/v2/suggest/address/")
 
     def test_that_suggestion_url_is_not_private(self):
         self.assertEqual(self.client.suggestions.address.private, False)
diff --git a/tests/test_url_builder.py b/tests/test_url_builder.py
index a6d3394..a9bcae3 100644
--- a/tests/test_url_builder.py
+++ b/tests/test_url_builder.py
@@ -9,7 +9,7 @@ class UrlBuildTest(CommonTestCase):
     """
     def test_address_url(self):
         url = self.client.address.url
-        correct_url = self.client.url + '/clean/address'
+        correct_url = self.client.url + '/clean/address/'
         self.assertEqual(url, correct_url)
 
     def test_request_no_key(self):