diff --git a/arkindex/schema.yml b/arkindex/schema.yml
index 2bcc839c55473e3fdcf7ee03e8d9db6716ed7ec3..c4a0ab71ff2ec0657233bdd380ab2fac54720c1a 100644
--- a/arkindex/schema.yml
+++ b/arkindex/schema.yml
@@ -3194,6 +3194,13 @@ paths:
         required: false
         schema:
           type: string
+      - description: List recursively (parents, grandparents, etc.)
+        in: query
+        name: recursive
+        required: false
+        schema:
+          default: false
+          type: boolean
       responses:
         '200':
           content:
@@ -3421,6 +3428,13 @@ paths:
         required: false
         schema:
           type: string
+      - description: List recursively (children, grandchildren, etc.)
+        in: query
+        name: recursive
+        required: false
+        schema:
+          default: false
+          type: boolean
       responses:
         '200':
           content: