diff --git a/tempest/lib/services/network/metering_label_rules_client.py b/tempest/lib/services/network/metering_label_rules_client.py
index 36cf8e3..9542e8f 100644
--- a/tempest/lib/services/network/metering_label_rules_client.py
+++ b/tempest/lib/services/network/metering_label_rules_client.py
@@ -16,6 +16,12 @@
 class MeteringLabelRulesClient(base.BaseNetworkClient):
 
     def create_metering_label_rule(self, **kwargs):
+        """Create metering label rule.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/network/v2/index.html#create-metering-label-rule
+        """
         uri = '/metering/metering-label-rules'
         post_data = {'metering_label_rule': kwargs}
         return self.create_resource(uri, post_data)
@@ -29,5 +35,11 @@
         return self.delete_resource(uri)
 
     def list_metering_label_rules(self, **filters):
+        """List metering label rules.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/network/v2/index.html#list-metering-label-rules
+        """
         uri = '/metering/metering-label-rules'
         return self.list_resources(uri, **filters)
diff --git a/tempest/lib/services/network/quotas_client.py b/tempest/lib/services/network/quotas_client.py
index 752b253..fdd3d6b 100644
--- a/tempest/lib/services/network/quotas_client.py
+++ b/tempest/lib/services/network/quotas_client.py
@@ -18,6 +18,12 @@
 class QuotasClient(base.BaseNetworkClient):
 
     def update_quotas(self, tenant_id, **kwargs):
+        """Update quota for a project.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/network/v2/index.html#update-quota-for-a-project
+        """
         put_body = {'quota': kwargs}
         uri = '/quotas/%s' % tenant_id
         return self.update_resource(uri, put_body)
diff --git a/tempest/lib/services/network/service_providers_client.py b/tempest/lib/services/network/service_providers_client.py
index 0ee9bc3..01313a0 100644
--- a/tempest/lib/services/network/service_providers_client.py
+++ b/tempest/lib/services/network/service_providers_client.py
@@ -16,6 +16,11 @@
 class ServiceProvidersClient(base.BaseNetworkClient):
 
     def list_service_providers(self, **filters):
-        """Lists service providers."""
+        """Lists service providers.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/network/v2/index.html#list-service-providers
+        """
         uri = '/service-providers'
         return self.list_resources(uri, **filters)