diff --git a/OpenAPI/API-AE-RET.yml b/OpenAPI/API-AE-RET.yml
new file mode 100644
index 0000000000000000000000000000000000000000..0bc18239bb77a13fc2183162456c871147cf26de
--- /dev/null
+++ b/OpenAPI/API-AE-RET.yml
@@ -0,0 +1,83 @@
+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
+ schema:
+ type: string
+ example: CAdmin
+ - name: X-M2M-RVI
+ in: header
+ schema:
+ type: string
+ example: 2a
+ - name: X-M2M-RI
+ in: header
+ schema:
+ type: string
+ example: '1234'
+ responses:
+ '200':
+ description: Auto generated using Swagger Inspector
+ content:
+ application/json:
+ schema:
+ 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
+ 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'
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