diff --git a/osf/external/gravy_valet/translations.py b/osf/external/gravy_valet/translations.py
index 7ad5758cd60..843a23a1ca9 100644
--- a/osf/external/gravy_valet/translations.py
+++ b/osf/external/gravy_valet/translations.py
@@ -12,7 +12,6 @@
 from addons.gitlab.apps import GitLabAddonConfig
 from addons.googledrive.apps import GoogleDriveAddonConfig
 from addons.s3.apps import S3AddonAppConfig
-from addons.s3.settings import ENCRYPT_UPLOADS_DEFAULT
 from . import request_helpers as gv_requests
 
 
@@ -95,6 +94,7 @@ class EphemeralNodeSettings:
 
     # retrieved from WB on-demand and cached
     _credentials: dict = None
+    _config: dict = None
 
     @property
     def short_name(self):
@@ -142,20 +142,9 @@ def serialize_waterbutler_credentials(self):
         return self._credentials
 
     def serialize_waterbutler_settings(self):
-        # sufficient for Box
-        # TODO: Define per-service translation (and/or common schemes)
-        match self.wb_key:
-            case _LegacyConfigsForWBKey.s3.name:
-                return {
-                    'bucket': self.folder_id.split(':/')[0],
-                    'id': self.folder_id,
-                    'encrypt_uploads': ENCRYPT_UPLOADS_DEFAULT,
-                }
-
-        return {
-            'folder': self.folder_id.split(':')[1],
-            'service': self.short_name,
-        }
+        if self._config is None:
+            self._fetch_wb_config()
+        return self._config
 
     def _fetch_wb_config(self):
         result = gv_requests.get_waterbutler_config(
@@ -164,6 +153,7 @@ def _fetch_wb_config(self):
             requesting_user=self.active_user
         )
         self._credentials = result.get_attribute('credentials')
+        self._config = result.get_attribute('config')
 
     def create_waterbutler_log(self, *args, **kwargs):
         pass
diff --git a/osf_tests/external/gravy_valet/gv_fakes.py b/osf_tests/external/gravy_valet/gv_fakes.py
index 4d8c9e0963a..2d2acd6234b 100644
--- a/osf_tests/external/gravy_valet/gv_fakes.py
+++ b/osf_tests/external/gravy_valet/gv_fakes.py
@@ -78,6 +78,18 @@ def _serialize_relationships(self):
         accounts_relationship = self._format_relationship_entry(relationship_path='authorized_storage_accounts')
         return {'authorized_storage_accounts': accounts_relationship}
 
+@dataclasses.dataclass(frozen=True)
+class _FakeWBCredentials(_FakeGVEntity):
+
+    RESOURCE_TYPE = 'waterbutler-credentials'
+    config: dict
+
+    def _serialize_attributes(self):
+        return {'config': self.config}
+
+    def _serialize_relationships(self):
+        return {}
+
 @dataclasses.dataclass(frozen=True)
 class _FakeResourceReference(_FakeGVEntity):
 
@@ -209,6 +221,7 @@ class FakeGravyValet:
         r'v1/resource-references(/(?P<pk>\d+)|(\?filter\[resource_uri\]=(?P<resource_uri>[^&]+)))': '_get_resource',
         r'v1/authorized-storage-accounts/(?P<pk>\d+)': '_get_account',
         r'v1/configured-storage-addons/(?P<pk>\d+)': '_get_addon',
+        r'v1/configured-storage-addons/(?P<pk>\d+)/waterbutler-credentials': '_get_wb_settings',
         r'v1/user-references/(?P<user_pk>\d+)/authorized_storage_accounts': '_get_user_accounts',
         r'v1/resource-references/(?P<resource_pk>\d+)/configured_storage_addons': '_get_resource_addons',
     }
@@ -374,6 +387,21 @@ def _get_user(
             include_param=include_param,
         )
 
+    def _get_wb_settings(
+        self,
+        headers: dict,
+        pk: str,
+        include_param: str = '',
+    ) -> str:
+        creds = _FakeWBCredentials(
+            pk=10,
+            config={
+                'folder': pk,
+                'service': 'box',
+            }
+        )
+        return _format_response_body(creds)
+
     def _get_resource(
         self,
         headers: dict,
diff --git a/osf_tests/test_gv_utils.py b/osf_tests/test_gv_utils.py
index c58469a3e0e..6794a4c94f6 100644
--- a/osf_tests/test_gv_utils.py
+++ b/osf_tests/test_gv_utils.py
@@ -532,13 +532,13 @@ def test_make_ephemeral_node_settings(self, contributor, project, fake_box_addon
                 requesting_user=contributor,
                 requested_resource=project,
             )
-        ephemeral_config = translations.make_ephemeral_node_settings(
-            addon_data, requesting_user=contributor, requested_resource=project
-        )
-        assert ephemeral_config.short_name == 'box'
-        assert ephemeral_config.gv_id == fake_box_addon.pk
-        assert ephemeral_config.config.name == 'addons.box'
-        assert ephemeral_config.serialize_waterbutler_settings() == {
-            'folder': fake_box_addon.root_folder.split(':')[1],
-            'service': 'box'
-        }
+            ephemeral_config = translations.make_ephemeral_node_settings(
+                addon_data, requesting_user=contributor, requested_resource=project
+            )
+            assert ephemeral_config.short_name == 'box'
+            assert ephemeral_config.gv_id == fake_box_addon.pk
+            assert ephemeral_config.config.name == 'addons.box'
+            assert ephemeral_config.serialize_waterbutler_settings() == {
+                'folder': fake_box_addon.root_folder.split(':')[1],
+                'service': 'box'
+            }