diff --git a/cps-ncmp-rest/docs/openapi/openapi-inventory.yml b/cps-ncmp-rest/docs/openapi/openapi-inventory.yml
new file mode 100755
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@@ -0,0 +1,28 @@
+#  ============LICENSE_START=======================================================
+#  Copyright (C) 2021 Bell Canada
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+#  SPDX-License-Identifier: Apache-2.0
+#  ============LICENSE_END=========================================================
+
+openapi: 3.0.1
+info:
+  title: NCMP Inventory API
+  description: NCMP Inventory API
+  version: "1.0"
+servers:
+  - url: /ncmpInventory
+paths:
+  /v1/ch:
+    $ref: 'ncmp-inventory.yml#/updateDmiRegistration'