diff --git a/frontend/src/api/chores.ts b/frontend/src/api/chores.ts
index f42c85e..411cc85 100644
--- a/frontend/src/api/chores.ts
+++ b/frontend/src/api/chores.ts
@@ -1,14 +1,24 @@
 import api from './axios';
 
+export interface AssignedUser {
+  id: number;
+  username: string;
+  full_name: string;
+  birthday?: string;
+  completed_at?: string;
+}
+
 export interface Chore {
   id: number;
   title: string;
-  description: string;
+  description?: string;
   room: string;
-  frequency: 'daily' | 'weekly' | 'monthly' | 'once';
+  frequency: 'daily' | 'weekly' | 'fortnightly' | 'monthly' | 'on_trigger';
+  points: number;
   status: 'pending' | 'in_progress' | 'completed' | 'skipped';
-  assigned_to?: number;
-  assigned_user?: {
+  assigned_users: AssignedUser[];  // Multiple users
+  assigned_user_id?: number;  // Legacy field
+  assigned_user?: {  // Legacy field
     id: number;
     username: string;
     full_name: string;
@@ -23,8 +33,9 @@ export interface CreateChoreRequest {
   title: string;
   description?: string;
   room: string;
-  frequency: 'daily' | 'weekly' | 'monthly' | 'once';
-  assigned_to?: number;
+  frequency: 'daily' | 'weekly' | 'fortnightly' | 'monthly' | 'on_trigger';
+  points?: number;
+  assigned_user_ids?: number[];  // Multiple users
   due_date?: string;
 }
 
@@ -32,15 +43,16 @@ export interface UpdateChoreRequest {
   title?: string;
   description?: string;
   room?: string;
-  frequency?: 'daily' | 'weekly' | 'monthly' | 'once';
+  frequency?: 'daily' | 'weekly' | 'fortnightly' | 'monthly' | 'on_trigger';
+  points?: number;
   status?: 'pending' | 'in_progress' | 'completed' | 'skipped';
-  assigned_to?: number;
+  assigned_user_ids?: number[];  // Multiple users
   due_date?: string;
 }
 
 export const choreService = {
-  async getChores(): Promise<Chore[]> {
-    const response = await api.get<Chore[]>('/api/v1/chores');
+  async getChores(params?: { user_id?: number; exclude_birthdays?: boolean }): Promise<Chore[]> {
+    const response = await api.get<Chore[]>('/api/v1/chores', { params });
     return response.data;
   },
 
@@ -69,4 +81,9 @@ export const choreService = {
     });
     return response.data;
   },
+
+  async assignUsers(choreId: number, userIds: number[]): Promise<Chore> {
+    const response = await api.post<Chore>(`/api/v1/chores/${choreId}/assign`, userIds);
+    return response.data;
+  },
 };