diff --git a/backend/typedb/main.py b/backend/typedb/main.py
index 638699fdf3..f1aa06138a 100644
--- a/backend/typedb/main.py
+++ b/backend/typedb/main.py
@@ -108,10 +108,21 @@ def serialize_concept(concept) -> Dict[str, Any]:
         if hasattr(concept_type, 'get_label'):
             label = concept_type.get_label()
             result['_type'] = label.name if hasattr(label, 'name') else str(label)
+            result['type'] = result['_type']  # Alias for frontend compatibility
     
     if hasattr(concept, 'get_iid'):
         iid = concept.get_iid()
-        result['_iid'] = iid.hex() if iid else None
+        # Handle both old (bytes with .hex()) and new (string) driver formats
+        if iid is None:
+            result['_iid'] = None
+            result['id'] = None
+        elif hasattr(iid, 'hex'):
+            result['_iid'] = iid.hex()
+            result['id'] = iid.hex()
+        else:
+            # iid is already a string
+            result['_iid'] = str(iid)
+            result['id'] = str(iid)
     
     if hasattr(concept, 'get_value'):
         result['value'] = concept.get_value()
@@ -127,8 +138,18 @@ def serialize_concept_map(concept_map) -> Dict[str, Any]:
         concept = concept_map.get(var)
         if concept:
             if hasattr(concept, 'get_value'):
-                # It's an attribute value
-                result[var] = concept.get_value()
+                # It's an attribute value - include type info for frontend
+                attr_type = None
+                if hasattr(concept, 'get_type'):
+                    concept_type = concept.get_type()
+                    if hasattr(concept_type, 'get_label'):
+                        label = concept_type.get_label()
+                        attr_type = label.name if hasattr(label, 'name') else str(label)
+                
+                result[var] = {
+                    'value': concept.get_value(),
+                    'type': attr_type,
+                }
             elif hasattr(concept, 'get_iid'):
                 # It's an entity or relation
                 result[var] = serialize_concept(concept)