diff --git a/site/etc/categories.json b/site/etc/categories.json
index b2d27ed..282b2f9 100644
--- a/site/etc/categories.json
+++ b/site/etc/categories.json
@@ -13,6 +13,7 @@
     { "path": "model-monitoring/_index.md", "title_bar_color": "bg-pink-600", "background_color": "bg-pink-50" }
   ],
   "column3": [
+    { "path": "app-builders/_index.md", "title_bar_color": "bg-blue-600", "background_color": "bg-blue-50" },
     { "path": "autonomous-agents/_index.md", "title_bar_color": "bg-orange-600", "background_color": "bg-orange-50" },
     { "path": "ai-assistants/_index.md", "title_bar_color": "bg-purple-600", "background_color": "bg-purple-50" },
     { "path": "workflow-automation/_index.md", "title_bar_color": "bg-pink-600", "background_color": "bg-pink-50" },