diff --git a/api-ref/source/v2/parameters.yaml b/api-ref/source/v2/parameters.yaml
index d06b1074d..fa60440eb 100644
--- a/api-ref/source/v2/parameters.yaml
+++ b/api-ref/source/v2/parameters.yaml
@@ -205,6 +205,14 @@ qos-rule_id:
   in: path
   required: true
   type: string
+qos-rule_type:
+  description: |
+    The name of the QoS rule type. It should be one of the types
+    returned by the List QoS rule types API, for example
+    ``bandwidth_limit`` or ``dscp_marking``.
+  in: path
+  required: true
+  type: string
 rbac_policy_id-path:
   description: |
     The ID of the RBAC policy.
@@ -4254,6 +4262,24 @@ psk:
   in: body
   required: true
   type: string
+qos-backend-drivers:
+  description: |
+      List of loaded QoS drivers with supported
+      rule type parameters with possible values for each.
+      Each driver is represented by a dict with the keys
+      ``name`` and ``supported_parameters``.
+      Field ``name`` contains the name of a backend driver.
+      Field ``supported_parameters`` contains a list of dicts with
+      ``parameter_name``, ``parameter_type`` and ``parameter_values``
+      fields.
+      The valid values for ``parameter_type`` are ``choices`` or ``range``.
+      If ``parameter_type`` is ``choices`` then ``parameter_values``
+      contains a list of acceptable values, otherwise it contains
+      a dict with keys of ``start`` and ``end`` which define the range
+      of acceptable values.
+  in: body
+  required: true
+  type: list
 qos-rule-direction:
   description: |
     The direction of the traffic to which the QoS
diff --git a/api-ref/source/v2/qos.inc b/api-ref/source/v2/qos.inc
index f2c315e2b..6bdce7e04 100644
--- a/api-ref/source/v2/qos.inc
+++ b/api-ref/source/v2/qos.inc
@@ -4,7 +4,7 @@
 QoS rule types
 ==============
 
-List QoS rule types available in current deployment.
+Lists and shows information for QoS rule types available in current deployment.
 
 List QoS rule types
 ===================
@@ -31,6 +31,47 @@ Response Example
 .. literalinclude:: samples/qos/rule_types-list-response.json
    :language: javascript
 
+Show QoS rule type details
+==========================
+
+.. rest_method:: GET /v2.0/qos/rule-types/{rule_type}
+
+Shows details for an available QoS rule type.
+
+To determine if this API call is available, a user can check whether
+the ``qos-rule-type-details`` extension API is available.
+
+You can control which response parameters are returned by using the
+fields query parameter. For information, see `Filtering and column
+selection <http://specs.openstack.org/openstack/neutron-
+specs/specs/api/networking_general_api_information.html#filtering-
+and-column-selection>`__.
+
+Normal response codes: 200
+
+Error response codes: 401, 404
+
+Request
+-------
+
+.. rest_parameters:: parameters.yaml
+
+   - rule_type: qos-rule_type
+
+Response Parameters
+-------------------
+
+.. rest_parameters:: parameters.yaml
+
+   - type: qos-rule-type
+   - drivers: qos-backend-drivers
+
+Response Example
+----------------
+
+.. literalinclude:: samples/qos/rule_type-details-response.json
+   :language: javascript
+
 ==================
 QoS policies (qos)
 ==================
diff --git a/api-ref/source/v2/samples/qos/rule_type-details-response.json b/api-ref/source/v2/samples/qos/rule_type-details-response.json
new file mode 100644
index 000000000..72b927689
--- /dev/null
+++ b/api-ref/source/v2/samples/qos/rule_type-details-response.json
@@ -0,0 +1,63 @@
+{
+    "drivers": [
+        {
+            "name": "openvswitch",
+            "supported_parameters": [
+                {
+                    "parameter_name": "max_kbps",
+                    "parameter_type": "range",
+                    "parameter_values": {
+                        "end": 2147483647,
+                        "start": 0
+                    }
+                },
+                {
+                    "parameter_name": "direction",
+                    "parameter_type": "choices",
+                    "parameter_values": [
+                        "ingress",
+                        "egress"
+                    ]
+                },
+                {
+                    "parameter_name": "max_burst_kbps",
+                    "parameter_type": "range",
+                    "parameter_values": {
+                        "end": 2147483647,
+                        "start": 0
+                    }
+                }
+            ]
+        },
+        {
+            "name": "linuxbridge",
+            "supported_parameters": [
+                {
+                    "parameter_name": "max_kbps",
+                    "parameter_type": "range",
+                    "parameter_values": {
+                        "end": 2147483647,
+                        "start": 0
+                    }
+                },
+                {
+                    "parameter_name": "direction",
+                    "parameter_type": "choices",
+                    "parameter_values": [
+                        "ingress",
+                        "egress"
+                    ]
+                },
+                {
+                    "parameter_name": "max_burst_kbps",
+                    "parameter_type": "range",
+                    "parameter_values": {
+                        "end": 2147483647,
+                        "start": 0
+                    }
+                }
+            ]
+        }
+    ],
+    "type": "bandwidth_limit"
+}