diff --git a/par-api/src/main/java/com/par/api/controller/AccessResultController.java b/par-api/src/main/java/com/par/api/controller/AccessResultController.java
index 67a3167..1f767f3 100644
--- a/par-api/src/main/java/com/par/api/controller/AccessResultController.java
+++ b/par-api/src/main/java/com/par/api/controller/AccessResultController.java
@@ -45,6 +45,9 @@ public class AccessResultController {
         if (content == null || content.isBlank()) {
             return ApiResponse.error(400, "content is required");
         }
+        if (url == null || url.isBlank()) {
+            return ApiResponse.error(400, "url is required");
+        }
 
         String clientId = (String) request.getAttribute("clientId");
         Long submitterId = (Long) request.getAttribute("accountId");