diff --git a/tempest/services/identity/v2/json/endpoints_client.py b/tempest/services/identity/v2/json/endpoints_client.py
index ff9907d..ba9f867 100644
--- a/tempest/services/identity/v2/json/endpoints_client.py
+++ b/tempest/services/identity/v2/json/endpoints_client.py
@@ -14,10 +14,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class EndpointsClient(service_client.ServiceClient):
+class EndpointsClient(rest_client.RestClient):
     api_version = "v2.0"
 
     def create_endpoint(self, service_id, region_id, **kwargs):
@@ -33,18 +33,18 @@
         resp, body = self.post('/endpoints', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_endpoints(self):
         """List Endpoints - Returns Endpoints."""
         resp, body = self.get('/endpoints')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_endpoint(self, endpoint_id):
         """Delete an endpoint."""
         url = '/endpoints/%s' % endpoint_id
         resp, body = self.delete(url)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v2/json/identity_client.py b/tempest/services/identity/v2/json/identity_client.py
index f045bb7..6caff0e 100644
--- a/tempest/services/identity/v2/json/identity_client.py
+++ b/tempest/services/identity/v2/json/identity_client.py
@@ -12,10 +12,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class IdentityClient(service_client.ServiceClient):
+class IdentityClient(rest_client.RestClient):
     api_version = "v2.0"
 
     def show_api_description(self):
@@ -24,24 +24,24 @@
         resp, body = self.get(url)
         self.expected_success([200, 203], resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_token(self, token_id):
         """Get token details."""
         resp, body = self.get("tokens/%s" % token_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_token(self, token_id):
         """Delete a token."""
         resp, body = self.delete("tokens/%s" % token_id)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_extensions(self):
         """List all the extensions."""
         resp, body = self.get('/extensions')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v2/json/roles_client.py b/tempest/services/identity/v2/json/roles_client.py
index ef6dfe9..acd97c6 100644
--- a/tempest/services/identity/v2/json/roles_client.py
+++ b/tempest/services/identity/v2/json/roles_client.py
@@ -12,10 +12,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class RolesClient(service_client.ServiceClient):
+class RolesClient(rest_client.RestClient):
     api_version = "v2.0"
 
     def create_role(self, **kwargs):
@@ -28,14 +28,14 @@
         resp, body = self.post('OS-KSADM/roles', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_role(self, role_id):
         """Get a role by its id."""
         resp, body = self.get('OS-KSADM/roles/%s' % role_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_role(self, role_id):
         """Delete a role."""
@@ -49,7 +49,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def assign_user_role(self, tenant_id, user_id, role_id):
         """Add roles to a user on a tenant."""
@@ -57,18 +57,18 @@
                               (tenant_id, user_id, role_id), "")
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_user_role(self, tenant_id, user_id, role_id):
         """Removes a role assignment for a user on a tenant."""
         resp, body = self.delete('/tenants/%s/users/%s/roles/OS-KSADM/%s' %
                                  (tenant_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_roles(self):
         """Returns roles."""
         resp, body = self.get('OS-KSADM/roles')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v2/json/services_client.py b/tempest/services/identity/v2/json/services_client.py
index 436d00d..d8be6c6 100644
--- a/tempest/services/identity/v2/json/services_client.py
+++ b/tempest/services/identity/v2/json/services_client.py
@@ -14,10 +14,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class ServicesClient(service_client.ServiceClient):
+class ServicesClient(rest_client.RestClient):
     api_version = "v2.0"
 
     def create_service(self, name, type, **kwargs):
@@ -31,7 +31,7 @@
         resp, body = self.post('/OS-KSADM/services', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_service(self, service_id):
         """Get Service."""
@@ -39,18 +39,18 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_services(self):
         """List Service - Returns Services."""
         resp, body = self.get('/OS-KSADM/services')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_service(self, service_id):
         """Delete Service."""
         url = '/OS-KSADM/services/%s' % service_id
         resp, body = self.delete(url)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v2/json/tenants_client.py b/tempest/services/identity/v2/json/tenants_client.py
index 937ae6f..034938e 100644
--- a/tempest/services/identity/v2/json/tenants_client.py
+++ b/tempest/services/identity/v2/json/tenants_client.py
@@ -14,10 +14,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class TenantsClient(service_client.ServiceClient):
+class TenantsClient(rest_client.RestClient):
     api_version = "v2.0"
 
     def create_tenant(self, name, **kwargs):
@@ -36,27 +36,27 @@
         resp, body = self.post('tenants', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_tenant(self, tenant_id):
         """Delete a tenant."""
         resp, body = self.delete('tenants/%s' % str(tenant_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_tenant(self, tenant_id):
         """Get tenant details."""
         resp, body = self.get('tenants/%s' % str(tenant_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_tenants(self):
         """Returns tenants."""
         resp, body = self.get('tenants')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_tenant(self, tenant_id, **kwargs):
         """Updates a tenant."""
@@ -74,11 +74,11 @@
         resp, body = self.post('tenants/%s' % tenant_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_tenant_users(self, tenant_id):
         """List users for a Tenant."""
         resp, body = self.get('/tenants/%s/users' % tenant_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v2/json/users_client.py b/tempest/services/identity/v2/json/users_client.py
index 5327638..5f8127f 100644
--- a/tempest/services/identity/v2/json/users_client.py
+++ b/tempest/services/identity/v2/json/users_client.py
@@ -12,10 +12,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class UsersClient(service_client.ServiceClient):
+class UsersClient(rest_client.RestClient):
     api_version = "v2.0"
 
     def create_user(self, name, password, tenant_id, email, **kwargs):
@@ -33,7 +33,7 @@
         resp, body = self.post('users', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_user(self, user_id, **kwargs):
         """Updates a user."""
@@ -41,27 +41,27 @@
         resp, body = self.put('users/%s' % user_id, put_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_user(self, user_id):
         """GET a user."""
         resp, body = self.get("users/%s" % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_user(self, user_id):
         """Delete a user."""
         resp, body = self.delete("users/%s" % user_id)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_users(self):
         """Get the list of users."""
         resp, body = self.get("users")
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def enable_disable_user(self, user_id, **kwargs):
         """Enables or disables a user.
@@ -77,7 +77,7 @@
         resp, body = self.put('users/%s/enabled' % user_id, put_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_user_password(self, user_id, **kwargs):
         """Update User Password."""
@@ -89,7 +89,7 @@
         resp, body = self.put('users/%s/OS-KSADM/password' % user_id, put_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_user_own_password(self, user_id, **kwargs):
         """User updates own password"""
@@ -104,7 +104,7 @@
         resp, body = self.patch('OS-KSCRUD/users/%s' % user_id, patch_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def create_user_ec2_credentials(self, user_id, **kwargs):
         # TODO(piyush): Current api-site doesn't contain this API description.
@@ -115,23 +115,23 @@
                                post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_user_ec2_credentials(self, user_id, access):
         resp, body = self.delete('/users/%s/credentials/OS-EC2/%s' %
                                  (user_id, access))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_user_ec2_credentials(self, user_id):
         resp, body = self.get('/users/%s/credentials/OS-EC2' % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_user_ec2_credentials(self, user_id, access):
         resp, body = self.get('/users/%s/credentials/OS-EC2/%s' %
                               (user_id, access))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/credentials_client.py b/tempest/services/identity/v3/json/credentials_client.py
index 753e960..6ab94d0 100644
--- a/tempest/services/identity/v3/json/credentials_client.py
+++ b/tempest/services/identity/v3/json/credentials_client.py
@@ -19,10 +19,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class CredentialsClient(service_client.ServiceClient):
+class CredentialsClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_credential(self, **kwargs):
@@ -36,7 +36,7 @@
         self.expected_success(201, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_credential(self, credential_id, **kwargs):
         """Updates a credential.
@@ -49,7 +49,7 @@
         self.expected_success(200, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_credential(self, credential_id):
         """To GET Details of a credential."""
@@ -57,17 +57,17 @@
         self.expected_success(200, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_credentials(self):
         """Lists out all the available credentials."""
         resp, body = self.get('credentials')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_credential(self, credential_id):
         """Deletes a credential."""
         resp, body = self.delete('credentials/%s' % credential_id)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/domains_client.py b/tempest/services/identity/v3/json/domains_client.py
index 626a474..d129a0a 100644
--- a/tempest/services/identity/v3/json/domains_client.py
+++ b/tempest/services/identity/v3/json/domains_client.py
@@ -15,10 +15,10 @@
 from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse as urllib
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class DomainsClient(service_client.ServiceClient):
+class DomainsClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_domain(self, name, **kwargs):
@@ -34,13 +34,13 @@
         resp, body = self.post('domains', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_domain(self, domain_id):
         """Deletes a domain."""
         resp, body = self.delete('domains/%s' % str(domain_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_domains(self, params=None):
         """List Domains."""
@@ -50,7 +50,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_domain(self, domain_id, **kwargs):
         """Updates a domain."""
@@ -67,11 +67,11 @@
         resp, body = self.patch('domains/%s' % domain_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_domain(self, domain_id):
         """Get Domain details."""
         resp, body = self.get('domains/%s' % domain_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/endpoints_client.py b/tempest/services/identity/v3/json/endpoints_client.py
index 8ab7464..c83212f 100644
--- a/tempest/services/identity/v3/json/endpoints_client.py
+++ b/tempest/services/identity/v3/json/endpoints_client.py
@@ -19,10 +19,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class EndPointClient(service_client.ServiceClient):
+class EndPointClient(rest_client.RestClient):
     api_version = "v3"
 
     def list_endpoints(self):
@@ -30,7 +30,7 @@
         resp, body = self.get('endpoints')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def create_endpoint(self, **kwargs):
         """Create endpoint.
@@ -42,7 +42,7 @@
         resp, body = self.post('endpoints', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_endpoint(self, endpoint_id, **kwargs):
         """Updates an endpoint with given parameters.
@@ -54,17 +54,17 @@
         resp, body = self.patch('endpoints/%s' % endpoint_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_endpoint(self, endpoint_id):
         """Delete endpoint."""
         resp_header, resp_body = self.delete('endpoints/%s' % endpoint_id)
         self.expected_success(204, resp_header.status)
-        return service_client.ResponseBody(resp_header, resp_body)
+        return rest_client.ResponseBody(resp_header, resp_body)
 
     def show_endpoint(self, endpoint_id):
         """Get endpoint."""
         resp_header, resp_body = self.get('endpoints/%s' % endpoint_id)
         self.expected_success(200, resp_header.status)
         resp_body = json.loads(resp_body)
-        return service_client.ResponseBody(resp_header, resp_body)
+        return rest_client.ResponseBody(resp_header, resp_body)
diff --git a/tempest/services/identity/v3/json/groups_client.py b/tempest/services/identity/v3/json/groups_client.py
index 6ed85cf..1a495f8 100644
--- a/tempest/services/identity/v3/json/groups_client.py
+++ b/tempest/services/identity/v3/json/groups_client.py
@@ -19,10 +19,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class GroupsClient(service_client.ServiceClient):
+class GroupsClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_group(self, **kwargs):
@@ -35,21 +35,21 @@
         resp, body = self.post('groups', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_group(self, group_id):
         """Get group details."""
         resp, body = self.get('groups/%s' % group_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_groups(self):
         """Lists the groups."""
         resp, body = self.get('groups')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_group(self, group_id, **kwargs):
         """Updates a group.
@@ -61,36 +61,36 @@
         resp, body = self.patch('groups/%s' % group_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_group(self, group_id):
         """Delete a group."""
         resp, body = self.delete('groups/%s' % str(group_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def add_group_user(self, group_id, user_id):
         """Add user into group."""
         resp, body = self.put('groups/%s/users/%s' % (group_id, user_id),
                               None)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_group_users(self, group_id):
         """List users in group."""
         resp, body = self.get('groups/%s/users' % group_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_group_user(self, group_id, user_id):
         """Delete user in group."""
         resp, body = self.delete('groups/%s/users/%s' % (group_id, user_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def check_group_user_existence(self, group_id, user_id):
         """Check user in group."""
         resp, body = self.head('groups/%s/users/%s' % (group_id, user_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp)
+        return rest_client.ResponseBody(resp)
diff --git a/tempest/services/identity/v3/json/identity_client.py b/tempest/services/identity/v3/json/identity_client.py
index 28c3cfd..8177e35 100644
--- a/tempest/services/identity/v3/json/identity_client.py
+++ b/tempest/services/identity/v3/json/identity_client.py
@@ -15,10 +15,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class IdentityClient(service_client.ServiceClient):
+class IdentityClient(rest_client.RestClient):
     api_version = "v3"
 
     def show_api_description(self):
@@ -27,7 +27,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_token(self, resp_token):
         """Get token details."""
@@ -35,11 +35,11 @@
         resp, body = self.get("auth/tokens", headers=headers)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_token(self, resp_token):
         """Deletes token."""
         headers = {'X-Subject-Token': resp_token}
         resp, body = self.delete("auth/tokens", headers=headers)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/policies_client.py b/tempest/services/identity/v3/json/policies_client.py
index 639ed6d..f28db9a 100644
--- a/tempest/services/identity/v3/json/policies_client.py
+++ b/tempest/services/identity/v3/json/policies_client.py
@@ -19,10 +19,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class PoliciesClient(service_client.ServiceClient):
+class PoliciesClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_policy(self, **kwargs):
@@ -35,14 +35,14 @@
         resp, body = self.post('policies', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_policies(self):
         """Lists the policies."""
         resp, body = self.get('policies')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_policy(self, policy_id):
         """Lists out the given policy."""
@@ -50,7 +50,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_policy(self, policy_id, **kwargs):
         """Updates a policy.
@@ -63,11 +63,11 @@
         resp, body = self.patch(url, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_policy(self, policy_id):
         """Deletes the policy."""
         url = "policies/%s" % policy_id
         resp, body = self.delete(url)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/projects_client.py b/tempest/services/identity/v3/json/projects_client.py
index 2fa822f..dc553d0 100644
--- a/tempest/services/identity/v3/json/projects_client.py
+++ b/tempest/services/identity/v3/json/projects_client.py
@@ -16,10 +16,10 @@
 from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse as urllib
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class ProjectsClient(service_client.ServiceClient):
+class ProjectsClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_project(self, name, **kwargs):
@@ -37,7 +37,7 @@
         resp, body = self.post('projects', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_projects(self, params=None):
         url = "projects"
@@ -46,7 +46,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_project(self, project_id, **kwargs):
         body = self.show_project(project_id)['project']
@@ -65,17 +65,17 @@
         resp, body = self.patch('projects/%s' % project_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_project(self, project_id):
         """GET a Project."""
         resp, body = self.get("projects/%s" % project_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_project(self, project_id):
         """Delete a project."""
         resp, body = self.delete('projects/%s' % str(project_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/regions_client.py b/tempest/services/identity/v3/json/regions_client.py
index bc4b7a1..90dd9d7 100644
--- a/tempest/services/identity/v3/json/regions_client.py
+++ b/tempest/services/identity/v3/json/regions_client.py
@@ -20,10 +20,10 @@
 from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse as urllib
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class RegionsClient(service_client.ServiceClient):
+class RegionsClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_region(self, region_id=None, **kwargs):
@@ -45,7 +45,7 @@
         resp, body = method(url, req_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_region(self, region_id, **kwargs):
         """Updates a region.
@@ -57,7 +57,7 @@
         resp, body = self.patch('regions/%s' % region_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_region(self, region_id):
         """Get region."""
@@ -65,7 +65,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_regions(self, params=None):
         """List regions."""
@@ -75,10 +75,10 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_region(self, region_id):
         """Delete region."""
         resp, body = self.delete('regions/%s' % region_id)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/roles_client.py b/tempest/services/identity/v3/json/roles_client.py
index b10c02e..303a892 100644
--- a/tempest/services/identity/v3/json/roles_client.py
+++ b/tempest/services/identity/v3/json/roles_client.py
@@ -14,10 +14,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class RolesClient(service_client.ServiceClient):
+class RolesClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_role(self, **kwargs):
@@ -30,21 +30,21 @@
         resp, body = self.post('roles', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_role(self, role_id):
         """GET a Role."""
         resp, body = self.get('roles/%s' % str(role_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_roles(self):
         """Get the list of Roles."""
         resp, body = self.get("roles")
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_role(self, role_id, **kwargs):
         """Update a Role.
@@ -56,27 +56,27 @@
         resp, body = self.patch('roles/%s' % str(role_id), post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_role(self, role_id):
         """Delete a role."""
         resp, body = self.delete('roles/%s' % str(role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def assign_user_role_on_project(self, project_id, user_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/users/%s/roles/%s' %
                               (project_id, user_id, role_id), None)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def assign_user_role_on_domain(self, domain_id, user_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/users/%s/roles/%s' %
                               (domain_id, user_id, role_id), None)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_user_roles_on_project(self, project_id, user_id):
         """list roles of a user on a project."""
@@ -84,7 +84,7 @@
                               (project_id, user_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_user_roles_on_domain(self, domain_id, user_id):
         """list roles of a user on a domain."""
@@ -92,21 +92,21 @@
                               (domain_id, user_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_role_from_user_on_project(self, project_id, user_id, role_id):
         """Delete role of a user on a project."""
         resp, body = self.delete('projects/%s/users/%s/roles/%s' %
                                  (project_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_role_from_user_on_domain(self, domain_id, user_id, role_id):
         """Delete role of a user on a domain."""
         resp, body = self.delete('domains/%s/users/%s/roles/%s' %
                                  (domain_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def check_user_role_existence_on_project(self, project_id,
                                              user_id, role_id):
@@ -114,7 +114,7 @@
         resp, body = self.head('projects/%s/users/%s/roles/%s' %
                                (project_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp)
+        return rest_client.ResponseBody(resp)
 
     def check_user_role_existence_on_domain(self, domain_id,
                                             user_id, role_id):
@@ -122,21 +122,21 @@
         resp, body = self.head('domains/%s/users/%s/roles/%s' %
                                (domain_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp)
+        return rest_client.ResponseBody(resp)
 
     def assign_group_role_on_project(self, project_id, group_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/groups/%s/roles/%s' %
                               (project_id, group_id, role_id), None)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def assign_group_role_on_domain(self, domain_id, group_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/groups/%s/roles/%s' %
                               (domain_id, group_id, role_id), None)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_group_roles_on_project(self, project_id, group_id):
         """list roles of a user on a project."""
@@ -144,7 +144,7 @@
                               (project_id, group_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_group_roles_on_domain(self, domain_id, group_id):
         """list roles of a user on a domain."""
@@ -152,21 +152,21 @@
                               (domain_id, group_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_role_from_group_on_project(self, project_id, group_id, role_id):
         """Delete role of a user on a project."""
         resp, body = self.delete('projects/%s/groups/%s/roles/%s' %
                                  (project_id, group_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_role_from_group_on_domain(self, domain_id, group_id, role_id):
         """Delete role of a user on a domain."""
         resp, body = self.delete('domains/%s/groups/%s/roles/%s' %
                                  (domain_id, group_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def check_role_from_group_on_project_existence(self, project_id,
                                                    group_id, role_id):
@@ -174,7 +174,7 @@
         resp, body = self.head('projects/%s/groups/%s/roles/%s' %
                                (project_id, group_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp)
+        return rest_client.ResponseBody(resp)
 
     def check_role_from_group_on_domain_existence(self, domain_id,
                                                   group_id, role_id):
@@ -182,4 +182,4 @@
         resp, body = self.head('domains/%s/groups/%s/roles/%s' %
                                (domain_id, group_id, role_id))
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp)
+        return rest_client.ResponseBody(resp)
diff --git a/tempest/services/identity/v3/json/services_client.py b/tempest/services/identity/v3/json/services_client.py
index dd65f1d..e863016 100644
--- a/tempest/services/identity/v3/json/services_client.py
+++ b/tempest/services/identity/v3/json/services_client.py
@@ -19,10 +19,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class ServicesClient(service_client.ServiceClient):
+class ServicesClient(rest_client.RestClient):
     api_version = "v3"
 
     def update_service(self, service_id, **kwargs):
@@ -35,7 +35,7 @@
         resp, body = self.patch('services/%s' % service_id, patch_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_service(self, service_id):
         """Get Service."""
@@ -43,7 +43,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def create_service(self, **kwargs):
         """Creates a service.
@@ -55,16 +55,16 @@
         resp, body = self.post("services", body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_service(self, serv_id):
         url = "services/" + serv_id
         resp, body = self.delete(url)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_services(self):
         resp, body = self.get('services')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/trusts_client.py b/tempest/services/identity/v3/json/trusts_client.py
index 42b2bdb..dedee05 100644
--- a/tempest/services/identity/v3/json/trusts_client.py
+++ b/tempest/services/identity/v3/json/trusts_client.py
@@ -14,10 +14,10 @@
 
 from oslo_serialization import jsonutils as json
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class TrustsClient(service_client.ServiceClient):
+class TrustsClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_trust(self, **kwargs):
@@ -30,13 +30,13 @@
         resp, body = self.post('OS-TRUST/trusts', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_trust(self, trust_id):
         """Deletes a trust."""
         resp, body = self.delete("OS-TRUST/trusts/%s" % trust_id)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_trusts(self, trustor_user_id=None, trustee_user_id=None):
         """GET trusts."""
@@ -50,21 +50,21 @@
             resp, body = self.get("OS-TRUST/trusts")
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_trust(self, trust_id):
         """GET trust."""
         resp, body = self.get("OS-TRUST/trusts/%s" % trust_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_trust_roles(self, trust_id):
         """GET roles delegated by a trust."""
         resp, body = self.get("OS-TRUST/trusts/%s/roles" % trust_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_trust_role(self, trust_id, role_id):
         """GET role delegated by a trust."""
@@ -72,11 +72,11 @@
                               % (trust_id, role_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def check_trust_role(self, trust_id, role_id):
         """HEAD Check if role is delegated by a trust."""
         resp, body = self.head("OS-TRUST/trusts/%s/roles/%s"
                                % (trust_id, role_id))
         self.expected_success(200, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/users_clients.py b/tempest/services/identity/v3/json/users_clients.py
index 481fdf0..3ab8eab 100644
--- a/tempest/services/identity/v3/json/users_clients.py
+++ b/tempest/services/identity/v3/json/users_clients.py
@@ -15,10 +15,10 @@
 from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse as urllib
 
-from tempest.common import service_client
+from tempest.lib.common import rest_client
 
 
-class UsersClient(service_client.ServiceClient):
+class UsersClient(rest_client.RestClient):
     api_version = "v3"
 
     def create_user(self, user_name, password=None, project_id=None,
@@ -41,7 +41,7 @@
         resp, body = self.post('users', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_user(self, user_id, name, **kwargs):
         """Updates a user."""
@@ -70,7 +70,7 @@
         resp, body = self.patch('users/%s' % user_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def update_user_password(self, user_id, **kwargs):
         """Update a user password
@@ -81,14 +81,14 @@
         update_user = json.dumps({'user': kwargs})
         resp, _ = self.post('users/%s/password' % user_id, update_user)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp)
+        return rest_client.ResponseBody(resp)
 
     def list_user_projects(self, user_id):
         """Lists the projects on which a user has roles assigned."""
         resp, body = self.get('users/%s/projects' % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_users(self, params=None):
         """Get the list of users."""
@@ -98,24 +98,24 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def show_user(self, user_id):
         """GET a user."""
         resp, body = self.get("users/%s" % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def delete_user(self, user_id):
         """Deletes a User."""
         resp, body = self.delete("users/%s" % user_id)
         self.expected_success(204, resp.status)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_user_groups(self, user_id):
         """Lists groups which a user belongs to."""
         resp, body = self.get('users/%s/groups' % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBody(resp, body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/tests/common/test_service_clients.py b/tempest/tests/common/test_service_clients.py
index 88a5931..49857ae 100644
--- a/tempest/tests/common/test_service_clients.py
+++ b/tempest/tests/common/test_service_clients.py
@@ -16,15 +16,6 @@
 import random
 import six
 
-from tempest.services.identity.v2.json import identity_client as \
-    identity_v2_identity_client
-from tempest.services.identity.v3.json import credentials_client
-from tempest.services.identity.v3.json import endpoints_client
-from tempest.services.identity.v3.json import identity_client as \
-    identity_v3_identity_client
-from tempest.services.identity.v3.json import policies_client
-from tempest.services.identity.v3.json import regions_client
-from tempest.services.identity.v3.json import services_client
 from tempest.services.network.json import network_client
 from tempest.tests import base
 
@@ -35,13 +26,6 @@
     def test_service_client_creations_with_specified_args(self, mock_init):
         test_clients = [
             network_client.NetworkClient,
-            identity_v2_identity_client.IdentityClient,
-            credentials_client.CredentialsClient,
-            endpoints_client.EndPointClient,
-            identity_v3_identity_client.IdentityClient,
-            policies_client.PoliciesClient,
-            regions_client.RegionsClient,
-            services_client.ServicesClient,
         ]
 
         for client in test_clients: