diff --git a/openapi/anchor-platform/Callbacks API.yml b/openapi/anchor-platform/Callbacks API.yml
index 37bdd8315..a4a086d18 100644
--- a/openapi/anchor-platform/Callbacks API.yml	
+++ b/openapi/anchor-platform/Callbacks API.yml	
@@ -466,3 +466,34 @@ paths:
             application/json:
               schema:
                 $ref: './schemas.yml#/components/schemas/Error'
+  /event:
+    post:
+      tags:
+        - Events
+        - SEP-24
+        - SEP-31
+      summary: Receive a event from the anchor platform.
+      operationId: postEvent
+      description: |
+        Receive a JSON object representing an event.
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                timestamp:
+                    type: string
+                    description: |
+                      `timestamp` the current Unix timestamp (number of seconds since epoch) at the time event is sent.
+                payload:
+                  $ref: './schemas.yml#/components/schemas/Event'
+      responses:
+        '200':
+          description: The event is successfully processed and ready to receive next event. The response body is empty.
+        '400':
+          description: The event is invalid or rejected. The response body contains the error message.
+
+
+
+