diff --git a/frontend/src/api/auth.ts b/frontend/src/api/auth.ts
index 05fdb07..0aeda74 100644
--- a/frontend/src/api/auth.ts
+++ b/frontend/src/api/auth.ts
@@ -64,7 +64,7 @@ export interface User {
  * Login user
  */
 export const login = async (credentials: LoginCredentials): Promise<LoginResponse> => {
-  const response = await apiClient.post<LoginResponse>('/api/auth/login/', credentials);
+  const response = await apiClient.post<LoginResponse>('/auth/login/', credentials);
   return response.data;
 };
 
@@ -72,14 +72,14 @@ export const login = async (credentials: LoginCredentials): Promise<LoginRespons
  * Logout user
  */
 export const logout = async (): Promise<void> => {
-  await apiClient.post('/api/auth/logout/');
+  await apiClient.post('/auth/logout/');
 };
 
 /**
  * Get current user
  */
 export const getCurrentUser = async (): Promise<User> => {
-  const response = await apiClient.get<User>('/api/auth/me/');
+  const response = await apiClient.get<User>('/auth/me/');
   return response.data;
 };
 
@@ -87,7 +87,7 @@ export const getCurrentUser = async (): Promise<User> => {
  * Refresh access token
  */
 export const refreshToken = async (refresh: string): Promise<{ access: string }> => {
-  const response = await apiClient.post('/api/auth/refresh/', { refresh });
+  const response = await apiClient.post('/auth/refresh/', { refresh });
   return response.data;
 };
 
@@ -99,7 +99,7 @@ export const masquerade = async (
   hijack_history?: MasqueradeStackEntry[]
 ): Promise<LoginResponse> => {
   const response = await apiClient.post<LoginResponse>(
-    '/api/auth/hijack/acquire/',
+    '/auth/hijack/acquire/',
     { user_pk, hijack_history }
   );
   return response.data;
@@ -112,7 +112,7 @@ export const stopMasquerade = async (
   masquerade_stack: MasqueradeStackEntry[]
 ): Promise<LoginResponse> => {
   const response = await apiClient.post<LoginResponse>(
-    '/api/auth/hijack/release/',
+    '/auth/hijack/release/',
     { masquerade_stack }
   );
   return response.data;
diff --git a/frontend/src/api/client.ts b/frontend/src/api/client.ts
index dc44613..cdac322 100644
--- a/frontend/src/api/client.ts
+++ b/frontend/src/api/client.ts
@@ -88,11 +88,15 @@ apiClient.interceptors.response.use(
           return apiClient(originalRequest);
         }
       } catch (refreshError) {
-        // Refresh failed - clear tokens and redirect to login
+        // Refresh failed - clear tokens and redirect to login on root domain
         const { deleteCookie } = await import('../utils/cookies');
+        const { getBaseDomain } = await import('../utils/domain');
         deleteCookie('access_token');
         deleteCookie('refresh_token');
-        window.location.href = '/login';
+        const protocol = window.location.protocol;
+        const baseDomain = getBaseDomain();
+        const port = window.location.port ? `:${window.location.port}` : '';
+        window.location.href = `${protocol}//${baseDomain}${port}/login`;
         return Promise.reject(refreshError);
       }
     }
diff --git a/frontend/src/api/notifications.ts b/frontend/src/api/notifications.ts
index ad7c7db..a0f066f 100644
--- a/frontend/src/api/notifications.ts
+++ b/frontend/src/api/notifications.ts
@@ -29,7 +29,7 @@ export const getNotifications = async (params?: { read?: boolean; limit?: number
     queryParams.append('limit', String(params.limit));
   }
   const query = queryParams.toString();
-  const url = query ? `/api/notifications/?${query}` : '/api/notifications/';
+  const url = query ? `/notifications/?${query}` : '/notifications/';
   const response = await apiClient.get(url);
   return response.data;
 };
@@ -38,7 +38,7 @@ export const getNotifications = async (params?: { read?: boolean; limit?: number
  * Get count of unread notifications
  */
 export const getUnreadCount = async (): Promise<number> => {
-  const response = await apiClient.get<UnreadCountResponse>('/api/notifications/unread_count/');
+  const response = await apiClient.get<UnreadCountResponse>('/notifications/unread_count/');
   return response.data.count;
 };
 
@@ -46,19 +46,19 @@ export const getUnreadCount = async (): Promise<number> => {
  * Mark a single notification as read
  */
 export const markNotificationRead = async (id: number): Promise<void> => {
-  await apiClient.post(`/api/notifications/${id}/mark_read/`);
+  await apiClient.post(`/notifications/${id}/mark_read/`);
 };
 
 /**
  * Mark all notifications as read
  */
 export const markAllNotificationsRead = async (): Promise<void> => {
-  await apiClient.post('/api/notifications/mark_all_read/');
+  await apiClient.post('/notifications/mark_all_read/');
 };
 
 /**
  * Delete all read notifications
  */
 export const clearAllNotifications = async (): Promise<void> => {
-  await apiClient.delete('/api/notifications/clear_all/');
+  await apiClient.delete('/notifications/clear_all/');
 };
diff --git a/frontend/src/api/oauth.ts b/frontend/src/api/oauth.ts
index 6d48bfc..8d67543 100644
--- a/frontend/src/api/oauth.ts
+++ b/frontend/src/api/oauth.ts
@@ -45,7 +45,7 @@ export interface OAuthConnection {
  * Get list of enabled OAuth providers
  */
 export const getOAuthProviders = async (): Promise<OAuthProvider[]> => {
-  const response = await apiClient.get<{ providers: OAuthProvider[] }>('/api/auth/oauth/providers/');
+  const response = await apiClient.get<{ providers: OAuthProvider[] }>('/auth/oauth/providers/');
   return response.data.providers;
 };
 
@@ -54,7 +54,7 @@ export const getOAuthProviders = async (): Promise<OAuthProvider[]> => {
  */
 export const initiateOAuth = async (provider: string): Promise<OAuthAuthorizationResponse> => {
   const response = await apiClient.get<OAuthAuthorizationResponse>(
-    `/api/auth/oauth/${provider}/authorize/`
+    `/auth/oauth/${provider}/authorize/`
   );
   return response.data;
 };
@@ -68,7 +68,7 @@ export const handleOAuthCallback = async (
   state: string
 ): Promise<OAuthTokenResponse> => {
   const response = await apiClient.post<OAuthTokenResponse>(
-    `/api/auth/oauth/${provider}/callback/`,
+    `/auth/oauth/${provider}/callback/`,
     {
       code,
       state,
@@ -81,7 +81,7 @@ export const handleOAuthCallback = async (
  * Get user's connected OAuth accounts
  */
 export const getOAuthConnections = async (): Promise<OAuthConnection[]> => {
-  const response = await apiClient.get<{ connections: OAuthConnection[] }>('/api/auth/oauth/connections/');
+  const response = await apiClient.get<{ connections: OAuthConnection[] }>('/auth/oauth/connections/');
   return response.data.connections;
 };
 
@@ -89,5 +89,5 @@ export const getOAuthConnections = async (): Promise<OAuthConnection[]> => {
  * Disconnect an OAuth account
  */
 export const disconnectOAuth = async (provider: string): Promise<void> => {
-  await apiClient.delete(`/api/auth/oauth/connections/${provider}/`);
+  await apiClient.delete(`/auth/oauth/connections/${provider}/`);
 };
diff --git a/frontend/src/api/platform.ts b/frontend/src/api/platform.ts
index b30d3b5..0ffba27 100644
--- a/frontend/src/api/platform.ts
+++ b/frontend/src/api/platform.ts
@@ -85,7 +85,7 @@ export interface PlatformUser {
  * Get all businesses (platform admin only)
  */
 export const getBusinesses = async (): Promise<PlatformBusiness[]> => {
-  const response = await apiClient.get<PlatformBusiness[]>('/api/platform/businesses/');
+  const response = await apiClient.get<PlatformBusiness[]>('/platform/businesses/');
   return response.data;
 };
 
@@ -97,7 +97,7 @@ export const updateBusiness = async (
   data: PlatformBusinessUpdate
 ): Promise<PlatformBusiness> => {
   const response = await apiClient.patch<PlatformBusiness>(
-    `/api/platform/businesses/${businessId}/`,
+    `/platform/businesses/${businessId}/`,
     data
   );
   return response.data;
@@ -110,7 +110,7 @@ export const createBusiness = async (
   data: PlatformBusinessCreate
 ): Promise<PlatformBusiness> => {
   const response = await apiClient.post<PlatformBusiness>(
-    '/api/platform/businesses/',
+    '/platform/businesses/',
     data
   );
   return response.data;
@@ -120,7 +120,7 @@ export const createBusiness = async (
  * Get all users (platform admin only)
  */
 export const getUsers = async (): Promise<PlatformUser[]> => {
-  const response = await apiClient.get<PlatformUser[]>('/api/platform/users/');
+  const response = await apiClient.get<PlatformUser[]>('/platform/users/');
   return response.data;
 };
 
@@ -128,7 +128,7 @@ export const getUsers = async (): Promise<PlatformUser[]> => {
  * Get users for a specific business
  */
 export const getBusinessUsers = async (businessId: number): Promise<PlatformUser[]> => {
-  const response = await apiClient.get<PlatformUser[]>(`/api/platform/users/?business=${businessId}`);
+  const response = await apiClient.get<PlatformUser[]>(`/platform/users/?business=${businessId}`);
   return response.data;
 };
 
@@ -136,7 +136,7 @@ export const getBusinessUsers = async (businessId: number): Promise<PlatformUser
  * Verify a user's email (platform admin only)
  */
 export const verifyUserEmail = async (userId: number): Promise<void> => {
-  await apiClient.post(`/api/platform/users/${userId}/verify_email/`);
+  await apiClient.post(`/platform/users/${userId}/verify_email/`);
 };
 
 // ============================================================================
@@ -218,7 +218,7 @@ export interface TenantInvitationAccept {
  * Get all tenant invitations (platform admin only)
  */
 export const getTenantInvitations = async (): Promise<TenantInvitation[]> => {
-  const response = await apiClient.get<TenantInvitation[]>('/api/platform/tenant-invitations/');
+  const response = await apiClient.get<TenantInvitation[]>('/platform/tenant-invitations/');
   return response.data;
 };
 
@@ -229,7 +229,7 @@ export const createTenantInvitation = async (
   data: TenantInvitationCreate
 ): Promise<TenantInvitation> => {
   const response = await apiClient.post<TenantInvitation>(
-    '/api/platform/tenant-invitations/',
+    '/platform/tenant-invitations/',
     data
   );
   return response.data;
@@ -239,14 +239,14 @@ export const createTenantInvitation = async (
  * Resend a tenant invitation (platform admin only)
  */
 export const resendTenantInvitation = async (invitationId: number): Promise<void> => {
-  await apiClient.post(`/api/platform/tenant-invitations/${invitationId}/resend/`);
+  await apiClient.post(`/platform/tenant-invitations/${invitationId}/resend/`);
 };
 
 /**
  * Cancel a tenant invitation (platform admin only)
  */
 export const cancelTenantInvitation = async (invitationId: number): Promise<void> => {
-  await apiClient.post(`/api/platform/tenant-invitations/${invitationId}/cancel/`);
+  await apiClient.post(`/platform/tenant-invitations/${invitationId}/cancel/`);
 };
 
 /**
@@ -254,7 +254,7 @@ export const cancelTenantInvitation = async (invitationId: number): Promise<void
  */
 export const getInvitationByToken = async (token: string): Promise<TenantInvitationDetail> => {
   const response = await apiClient.get<TenantInvitationDetail>(
-    `/api/platform/tenant-invitations/token/${token}/`
+    `/platform/tenant-invitations/token/${token}/`
   );
   return response.data;
 };
@@ -267,7 +267,7 @@ export const acceptInvitation = async (
   data: TenantInvitationAccept
 ): Promise<{ detail: string }> => {
   const response = await apiClient.post<{ detail: string }>(
-    `/api/platform/tenant-invitations/token/${token}/accept/`,
+    `/platform/tenant-invitations/token/${token}/accept/`,
     data
   );
   return response.data;