diff --git a/client/src/api/client.surface.test.ts b/client/src/api/client.surface.test.ts
index 5c0afe7f3..e594e06b4 100644
--- a/client/src/api/client.surface.test.ts
+++ b/client/src/api/client.surface.test.ts
@@ -267,6 +267,9 @@ describe('client > endpoint wiring', () => {
       { n: 'updateNotificationPreferences', r: () => adminApi.updateNotificationPreferences({ email: { trip_invite: true } }), e: 'PUT /api/admin/notification-preferences' },
       { n: 'getDefaultUserSettings', r: () => adminApi.getDefaultUserSettings(), e: 'GET /api/admin/default-user-settings' },
       { n: 'updateDefaultUserSettings', r: () => adminApi.updateDefaultUserSettings({ language: 'de' }), e: 'PUT /api/admin/default-user-settings' },
+      { n: 'getStorage', r: () => adminApi.getStorage(), e: 'GET /api/admin/storage' },
+      { n: 'updateStorage', r: () => adminApi.updateStorage({ backends: [], categories: {} }), e: 'PUT /api/admin/storage' },
+      { n: 'testStorageBackend', r: () => adminApi.testStorageBackend({ name: 'x', type: 'local', options: { root: '/data' } }), e: 'POST /api/admin/storage/test' },
       { n: 'mcpTokens', r: () => adminApi.mcpTokens(), e: 'GET /api/admin/mcp-tokens' },
       { n: 'deleteMcpToken', r: () => adminApi.deleteMcpToken(4), e: 'DELETE /api/admin/mcp-tokens/4' },
       { n: 'oauthSessions', r: () => adminApi.oauthSessions(), e: 'GET /api/admin/oauth-sessions' },
diff --git a/client/src/api/client.ts b/client/src/api/client.ts
index af4c5f61e..5380f0e4d 100644
--- a/client/src/api/client.ts
+++ b/client/src/api/client.ts
@@ -47,6 +47,10 @@ import {
   type BookingImportPreviewResponse,
   type BookingImportConfirmResponse,
   type BookingImportMode,
+  type StorageAdminState,
+  type StorageBackend,
+  type StorageConfig,
+  type StorageTestResponse,
 } from '@trek/shared'
 import { getSocketId } from './websocket'
 import { probeNow } from '../sync/connectivity'
@@ -637,6 +641,15 @@ export const adminApi = {
   updateNotificationPreferences: (prefs: Record<string, Record<string, boolean>>) => apiClient.put('/admin/notification-preferences', prefs).then(r => r.data),
   getDefaultUserSettings: () => apiClient.get('/admin/default-user-settings').then(r => r.data),
   updateDefaultUserSettings: (settings: Record<string, unknown>) => apiClient.put('/admin/default-user-settings', settings).then(r => r.data),
+  getStorage: (): Promise<StorageAdminState> => apiClient.get('/admin/storage').then(r => r.data),
+  updateStorage: (config: StorageConfig): Promise<StorageAdminState> =>
+    apiClient.put('/admin/storage', config).then(r => r.data),
+  // A probe is bounded by the target driver's own timeout (default 30s, ×2 with
+  // one retry) and a mirror probes its targets sequentially — the instance-wide
+  // 8s axios timeout would abort a legitimate slow probe, so this call carries
+  // its own generous ceiling.
+  testStorageBackend: (backend: StorageBackend): Promise<StorageTestResponse> =>
+    apiClient.post('/admin/storage/test', { backend }, { timeout: 120_000 }).then(r => r.data),
 }
 
 export const addonsApi = {