diff --git a/docs/docs/API-docs/opensign.yaml b/docs/docs/API-docs/opensign.yaml
index 50d4151dc..8cbb02672 100644
--- a/docs/docs/API-docs/opensign.yaml
+++ b/docs/docs/API-docs/opensign.yaml
@@ -1063,6 +1063,52 @@ paths:
                 $ref: '#/components/schemas/invalidtoken'
       security:
       - x-api-token: []
+    delete:
+      tags:
+      - Folder
+      summary: Delete Folder
+      description: The delete Folder API allows you to delete folder.
+      operationId: deletefolder
+      parameters:
+      - name: folder_id
+        in: path
+        description: objectId of folder
+        required: true
+        style: simple
+        explode: false
+        schema:
+          type: string
+          format: string
+          example: bK1cfd2hpb
+      responses:
+        "200":
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/inline_response_200_12'
+        "400":
+          description: |
+            - folder is not empty, contains document or folder.
+            - Something went wrong, please try again later!
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/inline_response_400_3'
+        "404":
+          description: folder not found.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/inline_response_404_8'
+        "405":
+          description: Invalid API token!
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/invalidtoken'
+      security:
+      - x-api-token: []
   /folderlist:
     get:
       tags:
@@ -1104,7 +1150,7 @@ paths:
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/inline_response_200_12'
+                $ref: '#/components/schemas/inline_response_200_13'
         "400":
           description: "Something went wrong, please try again later!"
           content:
@@ -1979,6 +2025,26 @@ components:
         updatedAt:
           $ref: '#/components/schemas/date'
     inline_response_200_12:
+      type: object
+      properties:
+        objectId:
+          type: string
+          format: string
+          example: Hks2JpewIp
+        deletedAt:
+          $ref: '#/components/schemas/date'
+    inline_response_400_3:
+      type: object
+      oneOf:
+      - properties:
+          error:
+            type: string
+            example: "folder is not empty, contains document or folder."
+      - properties:
+          error:
+            type: string
+            example: "Something went wrong, please try again later!"
+    inline_response_200_13:
       type: object
       properties:
         result: