diff --git a/input.yml b/input.yml
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+++ b/input.yml
@@ -0,0 +1,55 @@
+openapi: 3.0.0
+info:
+  title: Input endpoint of system
+  version: 1.0.0
+servers:
+  - url: https://dev.k8s.tcloud.enginner/api/input/v1
+paths:
+  /sample:
+    post:
+      summary: Upload sound file into the system
+      requestBody:
+        content: 
+          multipart/form-data:
+            schema:
+              type: object
+              properties:
+                id:
+                  type: string
+                  format: json
+                  items:
+                    $ref: '#/components/schemas/DateDevice'
+                soundFile:
+                  type: string
+                  format: binary
+      responses:
+        '200':
+          description: Status message
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Response'
+
+components:
+  schemas:
+    Response:
+      properties:
+        status:
+          type: string
+          description: "Status message from backend."
+      required:
+        - status
+    DateDevice:
+      properties:
+        date:
+          type: string
+          format: date
+          description: "Date of upload"
+        device_id:
+          type: string
+          description: "ID of device"
+      required:
+        - date
+        - device_id
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