diff --git a/apps/api/plane/api/views/issue.py b/apps/api/plane/api/views/issue.py
index fe32fe3fddd..1200c91c9cb 100644
--- a/apps/api/plane/api/views/issue.py
+++ b/apps/api/plane/api/views/issue.py
@@ -50,6 +50,8 @@
     IssueLinkUpdateSerializer,
     LabelCreateUpdateSerializer,
 )
+from plane.utils.filters import ComplexFilterBackend, IssueFilterSet
+from plane.utils.issue_filters import issue_filters
 from plane.app.permissions import (
     ProjectEntityPermission,
     ProjectLitePermission,
@@ -245,6 +247,8 @@ class IssueListCreateAPIEndpoint(BaseAPIView):
     permission_classes = [ProjectEntityPermission]
     serializer_class = IssueSerializer
     use_read_replica = True
+    filter_backends = (ComplexFilterBackend,)
+    filterset_class = IssueFilterSet
 
     def get_queryset(self):
         return (
@@ -343,6 +347,15 @@ def get(self, request, slug, project_id):
 
         total_issue_queryset = Issue.issue_objects.filter(project_id=project_id, workspace__slug=slug)
 
+        # Apply both JSON filters (ComplexFilterBackend) and legacy query param filters
+        issue_queryset = self.filter_queryset(issue_queryset)
+        total_issue_queryset = self.filter_queryset(total_issue_queryset)
+
+        legacy_filters = issue_filters(request.query_params, "GET")
+        if legacy_filters:
+            issue_queryset = issue_queryset.filter(**legacy_filters)
+            total_issue_queryset = total_issue_queryset.filter(**legacy_filters)
+
         # Priority Ordering
         if order_by_param == "priority" or order_by_param == "-priority":
             priority_order = priority_order if order_by_param == "priority" else priority_order[::-1]