diff --git a/src/list_categories.py b/src/list_categories.py
new file mode 100644
index 0000000..51ab61a
--- /dev/null
+++ b/src/list_categories.py
@@ -0,0 +1,90 @@
+"""
+List all Square categories with their IDs to help identify the correct LEGO category ID
+"""
+
+import asyncio
+import json
+from asquare import client
+
+
+async def list_categories():
+    """List all categories in Square catalog"""
+    try:
+        print("\n" + "=" * 60)
+        print("SQUARE CATALOG CATEGORIES")
+        print("=" * 60 + "\n")
+
+        cursor = None
+        page_count = 0
+        total_categories = 0
+
+        while True:
+            page_count += 1
+            print(f"Fetching page {page_count}...")
+
+            search_params = {
+                "object_types": ["CATEGORY"],
+                "limit": 1000,
+            }
+
+            if cursor:
+                search_params["cursor"] = cursor
+
+            result = await client.catalog.search(**search_params)
+            result_json = json.loads(result.model_dump_json())
+
+            if not result_json.get("objects"):
+                if page_count == 1:
+                    print("No categories found!")
+                break
+
+            for obj in result_json["objects"]:
+                category_data = obj.get("category_data", {})
+                category_id = obj.get("id")
+                category_name = category_data.get("name", "Unnamed")
+
+                print(f"\nCategory: {category_name}")
+                print(f"  ID: {category_id}")
+
+                # Count items in this category
+                items_result = await client.catalog.search(
+                    object_types=["ITEM"],
+                    query={
+                        "exact_query": {
+                            "attribute_name": "category_id",
+                            "attribute_value": category_id,
+                        }
+                    },
+                    limit=1,
+                )
+                items_json = json.loads(items_result.model_dump_json())
+                item_count = len(items_json.get("objects", []))
+
+                print(f"  Items: {item_count}+ items")
+                total_categories += 1
+
+            cursor = result_json.get("cursor")
+            if not cursor:
+                break
+
+        print("\n" + "=" * 60)
+        print(f"Total categories found: {total_categories}")
+        print("=" * 60 + "\n")
+
+        # Show current configured category
+        from get_sq_env import LEGO_CAT_ID
+
+        print(f"Currently configured LEGO_CAT_ID: {LEGO_CAT_ID}")
+        print("\nUpdate .env file with the correct category ID if needed:")
+        print('SQUARE_LEGO_CAT_ID = "YOUR_CATEGORY_ID_HERE"')
+        print()
+
+    except Exception as e:
+        print(f"Error listing categories: {e}")
+        import traceback
+
+        traceback.print_exc()
+
+
+if __name__ == "__main__":
+    asyncio.run(list_categories())