diff --git a/spec/namespaces/notifications.yaml b/spec/namespaces/notifications.yaml
index 5dd403ca4..42eb5fe1e 100644
--- a/spec/namespaces/notifications.yaml
+++ b/spec/namespaces/notifications.yaml
@@ -4,6 +4,18 @@ info:
   description: OpenSearch Notifications API
   version: 1.0.0
 paths:
+  /_plugins/_notifications/channels:
+    get:
+      operationId: notifications.list_channels.0
+      x-operation-group: notifications.list_channels
+      x-version-added: '2.0'
+      description: List created notification channels.
+      # TODO: Update url when this one is merged: https://github.com/opensearch-project/documentation-website/pull/6982
+      externalDocs:
+        url: https://opensearch.org/docs/latest/observing-your-data/notifications/api/#list-all-notification-configurations
+      responses:
+        '200':
+          $ref: '#/components/responses/notifications.list_channels@200'
   /_plugins/_notifications/configs:
     delete:
       operationId: notifications.delete_configs.0
@@ -225,6 +237,36 @@ components:
         application/json:
           schema:
             $ref: '../schemas/notifications._common.yaml#/components/schemas/GetConfigsResponse'
+    notifications.list_channels@200:
+      description: ''
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              start_index:
+                type: integer
+                format: int64
+              total_hits:
+                type: integer
+                format: int64
+              total_hit_relation:
+                $ref: '../schemas/notifications._common.yaml#/components/schemas/TotalHitRelation'
+              channel_list:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    config_id:
+                      type: string
+                    name:
+                      type: string
+                    description:
+                      type: string
+                    config_type:
+                      $ref: '../schemas/notifications._common.yaml#/components/schemas/NotificationConfigType'
+                    is_enabled:
+                      type: boolean
     notifications.list_features@200:
       description: ''
       content:
diff --git a/spec/opensearch-openapi.yaml b/spec/opensearch-openapi.yaml
index c835abf89..1673d43af 100644
--- a/spec/opensearch-openapi.yaml
+++ b/spec/opensearch-openapi.yaml
@@ -412,6 +412,8 @@ paths:
     $ref: 'namespaces/knn.yaml#/paths/~1_plugins~1_knn~1{node_id}~1stats'
   /_plugins/_knn/{node_id}/stats/{stat}:
     $ref: 'namespaces/knn.yaml#/paths/~1_plugins~1_knn~1{node_id}~1stats~1{stat}'
+  /_plugins/_notifications/channels:
+    $ref: 'namespaces/notifications.yaml#/paths/~1_plugins~1_notifications~1channels'
   /_plugins/_notifications/configs:
     $ref: 'namespaces/notifications.yaml#/paths/~1_plugins~1_notifications~1configs'
   /_plugins/_notifications/configs/{config_id}: