diff --git a/src/atoms/interfaceState.ts b/src/atoms/interfaceState.ts
index 622763c9..711fd31e 100644
--- a/src/atoms/interfaceState.ts
+++ b/src/atoms/interfaceState.ts
@@ -84,9 +84,9 @@ export const defaultInterface: Record<InterfaceProvider, InterfaceDefinition> =
       inputType: "text",
       label: "Base URL",
       description: "Base URL for API calls",
-      required: false,
-      default: "",
-      placeholder: ""
+      required: true,
+      default: "https://api.openai.com",
+      placeholder: "https://api.openai.com"
     },
     model: {
       type: "list",