diff --git a/packages/frontend/src/api/admin-lessons.ts b/packages/frontend/src/api/admin-lessons.ts
new file mode 100644
index 0000000..28f1ec1
--- /dev/null
+++ b/packages/frontend/src/api/admin-lessons.ts
@@ -0,0 +1,7 @@
+import type { Lesson } from '@flashcard/shared';
+import { api } from './client.js';
+
+export const adminLessonsApi = {
+  setCurated: (id: number, isCurated: boolean) =>
+    api.patch<Lesson>(`/admin/lessons/${id}/curated`, { isCurated }),
+};
diff --git a/packages/frontend/src/api/lessons.ts b/packages/frontend/src/api/lessons.ts
index f531dca..6c2aa61 100644
--- a/packages/frontend/src/api/lessons.ts
+++ b/packages/frontend/src/api/lessons.ts
@@ -1,4 +1,7 @@
-import type { Lesson, LessonCreateInput, LessonMoveInput, LessonTreeNode, LessonUpdateInput } from '@flashcard/shared';
+import type {
+  Lesson, LessonCreateInput, LessonMoveInput, LessonTreeNode, LessonUpdateInput,
+  Visibility, SubscriptionEntry,
+} from '@flashcard/shared';
 import { api } from './client.js';
 
 export const lessonsApi = {
@@ -7,4 +10,10 @@ export const lessonsApi = {
   update: (id: number, input: LessonUpdateInput) => api.patch<Lesson>(`/lessons/${id}`, input),
   remove: (id: number) => api.delete<void>(`/lessons/${id}`),
   move: (id: number, input: LessonMoveInput) => api.post<Lesson>(`/lessons/${id}/move`, input),
+  setVisibility: (id: number, visibility: Visibility) =>
+    api.patch<Lesson>(`/lessons/${id}/visibility`, { visibility }),
+  fork: (id: number) => api.post<Lesson>(`/lessons/${id}/fork`),
+  subscribe: (id: number) => api.post<{ ok: true }>(`/lessons/${id}/subscribe`),
+  unsubscribe: (id: number) => api.delete<void>(`/lessons/${id}/subscribe`),
+  mySubscriptions: () => api.get<SubscriptionEntry[]>('/me/subscriptions'),
 };
diff --git a/packages/frontend/src/api/marketplace.ts b/packages/frontend/src/api/marketplace.ts
new file mode 100644
index 0000000..1a445a3
--- /dev/null
+++ b/packages/frontend/src/api/marketplace.ts
@@ -0,0 +1,16 @@
+import type { MarketplaceLesson } from '@flashcard/shared';
+import { api } from './client.js';
+
+export interface MarketplaceListResponse { rows: MarketplaceLesson[]; total: number; }
+
+export const marketplaceApi = {
+  list: (params: { q?: string; curated?: boolean; limit?: number; offset?: number } = {}) => {
+    const qs = new URLSearchParams();
+    if (params.q) qs.set('q', params.q);
+    if (params.curated !== undefined) qs.set('curated', String(params.curated));
+    if (params.limit !== undefined) qs.set('limit', String(params.limit));
+    if (params.offset !== undefined) qs.set('offset', String(params.offset));
+    const s = qs.toString();
+    return api.get<MarketplaceListResponse>(`/marketplace/lessons${s ? '?' + s : ''}`);
+  },
+};