diff --git a/OpenAPI/openapi.yaml b/OpenAPI/openapi.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..064fce19a16dd68bdbb9f8387c4c33460bffb46f
--- /dev/null
+++ b/OpenAPI/openapi.yaml
@@ -0,0 +1,91 @@
+---
+openapi: 3.0.1
+info:
+  title: defaultTitle
+  description: defaultDescription
+  version: "0.1"
+servers:
+- url: http://192.168.1.30:8080
+paths:
+  /cse-in/buzzer:
+    get:
+      description: Auto generated using Swagger Inspector
+      parameters:
+      - name: X-M2M-Origin
+        in: header
+        required: false
+        style: simple
+        explode: false
+        schema:
+          type: string
+        example: CAdmin
+      - name: X-M2M-RVI
+        in: header
+        required: false
+        style: simple
+        explode: false
+        schema:
+          type: string
+        example: 2a
+      - name: X-M2M-RI
+        in: header
+        required: false
+        style: simple
+        explode: false
+        schema:
+          type: string
+        example: "1234"
+      responses:
+        "200":
+          description: Auto generated using Swagger Inspector
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/inline_response_200'
+              examples:
+                "0":
+                  value: '{"m2m:ae": {"rn": "buzzer", "api": "app.company.com", "rr": true, "srv": ["2a"], "poa": ["http://192.168.1.20:80/buzzer"], "ri": "Cae-buzzer", "ct": "20210317T093809,263613", "lt": "20210317T093809,263613", "et": "20220317T093809,263656", "pi": "id-in", "ty": 2, "aei": "Cae-buzzer", "acpi": ["acp5912935353305183899"]}}'
+      servers:
+      - url: http://192.168.1.30:8080
+    servers:
+    - url: http://192.168.1.30:8080
+components:
+  schemas:
+    inline_response_200:
+      type: object
+      properties:
+        m2m:ae:
+          type: object
+          properties:
+            rr:
+              type: boolean
+            poa:
+              type: array
+              items:
+                type: string
+            aei:
+              type: string
+            ty:
+              type: integer
+            lt:
+              type: string
+            et:
+              type: string
+            ct:
+              type: string
+            srv:
+              type: array
+              items:
+                type: string
+            acpi:
+              type: array
+              items:
+                type: string
+            ri:
+              type: string
+            pi:
+              type: string
+            api:
+              type: string
+            rn:
+              type: string