diff --git a/frontend/src/app/(app)/ai/extract/page.tsx b/frontend/src/app/(app)/ai/extract/page.tsx
index 60ef44b..c9eb691 100644
--- a/frontend/src/app/(app)/ai/extract/page.tsx
+++ b/frontend/src/app/(app)/ai/extract/page.tsx
@@ -24,7 +24,7 @@ export default function AIExtractPage() {
 
   const { data: casesData } = useQuery({
     queryKey: ["cases"],
-    queryFn: () => api.get<PaginatedResponse<Case>>("/api/cases"),
+    queryFn: () => api.get<PaginatedResponse<Case>>("/cases"),
   });
 
   const cases = casesData?.data ?? [];
@@ -40,12 +40,12 @@ export default function AIExtractPage() {
         const formData = new FormData();
         formData.append("file", file);
         response = await api.postFormData<ExtractionResponse>(
-          "/api/ai/extract-deadlines",
+          "/ai/extract-deadlines",
           formData,
         );
       } else {
         response = await api.post<ExtractionResponse>(
-          "/api/ai/extract-deadlines",
+          "/ai/extract-deadlines",
           { text },
         );
       }
@@ -74,7 +74,7 @@ export default function AIExtractPage() {
 
     try {
       const promises = deadlines.map((d) =>
-        api.post(`/api/cases/${selectedCaseId}/deadlines`, {
+        api.post(`/cases/${selectedCaseId}/deadlines`, {
           title: d.title,
           due_date: d.due_date ?? "",
           source: "ai_extraction",
diff --git a/frontend/src/app/(app)/fristen/page.tsx b/frontend/src/app/(app)/fristen/page.tsx
index 914c175..213d52d 100644
--- a/frontend/src/app/(app)/fristen/page.tsx
+++ b/frontend/src/app/(app)/fristen/page.tsx
@@ -16,7 +16,7 @@ export default function FristenPage() {
 
   const { data: deadlines } = useQuery({
     queryKey: ["deadlines"],
-    queryFn: () => api.get<Deadline[]>("/api/deadlines"),
+    queryFn: () => api.get<Deadline[]>("/deadlines"),
   });
 
   return (
diff --git a/frontend/src/app/(app)/termine/page.tsx b/frontend/src/app/(app)/termine/page.tsx
index 6efe2d0..b080919 100644
--- a/frontend/src/app/(app)/termine/page.tsx
+++ b/frontend/src/app/(app)/termine/page.tsx
@@ -18,7 +18,7 @@ export default function TerminePage() {
 
   const { data: appointments } = useQuery({
     queryKey: ["appointments"],
-    queryFn: () => api.get<Appointment[]>("/api/appointments"),
+    queryFn: () => api.get<Appointment[]>("/appointments"),
   });
 
   function handleEdit(appointment: Appointment) {
diff --git a/frontend/src/components/appointments/AppointmentList.tsx b/frontend/src/components/appointments/AppointmentList.tsx
index 01d7bd4..c1d21ae 100644
--- a/frontend/src/components/appointments/AppointmentList.tsx
+++ b/frontend/src/components/appointments/AppointmentList.tsx
@@ -54,16 +54,16 @@ export function AppointmentList({ onEdit }: AppointmentListProps) {
 
   const { data: appointments, isLoading } = useQuery({
     queryKey: ["appointments"],
-    queryFn: () => api.get<Appointment[]>("/api/appointments"),
+    queryFn: () => api.get<Appointment[]>("/appointments"),
   });
 
   const { data: cases } = useQuery({
     queryKey: ["cases"],
-    queryFn: () => api.get<{ cases: Case[]; total: number }>("/api/cases"),
+    queryFn: () => api.get<{ cases: Case[]; total: number }>("/cases"),
   });
 
   const deleteMutation = useMutation({
-    mutationFn: (id: string) => api.delete(`/api/appointments/${id}`),
+    mutationFn: (id: string) => api.delete(`/appointments/${id}`),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ["appointments"] });
       toast.success("Termin geloscht");
diff --git a/frontend/src/components/appointments/AppointmentModal.tsx b/frontend/src/components/appointments/AppointmentModal.tsx
index 75ef8ff..6915afc 100644
--- a/frontend/src/components/appointments/AppointmentModal.tsx
+++ b/frontend/src/components/appointments/AppointmentModal.tsx
@@ -41,7 +41,7 @@ export function AppointmentModal({ open, onClose, appointment }: AppointmentModa
 
   const { data: cases } = useQuery({
     queryKey: ["cases"],
-    queryFn: () => api.get<{ cases: Case[]; total: number }>("/api/cases"),
+    queryFn: () => api.get<{ cases: Case[]; total: number }>("/cases"),
   });
 
   useEffect(() => {
@@ -66,7 +66,7 @@ export function AppointmentModal({ open, onClose, appointment }: AppointmentModa
 
   const createMutation = useMutation({
     mutationFn: (body: Record<string, unknown>) =>
-      api.post<Appointment>("/api/appointments", body),
+      api.post<Appointment>("/appointments", body),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ["appointments"] });
       queryClient.invalidateQueries({ queryKey: ["dashboard"] });
@@ -89,7 +89,7 @@ export function AppointmentModal({ open, onClose, appointment }: AppointmentModa
   });
 
   const deleteMutation = useMutation({
-    mutationFn: () => api.delete(`/api/appointments/${appointment!.id}`),
+    mutationFn: () => api.delete(`/appointments/${appointment!.id}`),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ["appointments"] });
       queryClient.invalidateQueries({ queryKey: ["dashboard"] });
diff --git a/frontend/src/components/deadlines/DeadlineCalculator.tsx b/frontend/src/components/deadlines/DeadlineCalculator.tsx
index 1c7c1c9..bf2c6c1 100644
--- a/frontend/src/components/deadlines/DeadlineCalculator.tsx
+++ b/frontend/src/components/deadlines/DeadlineCalculator.tsx
@@ -39,14 +39,14 @@ export function DeadlineCalculator() {
 
   const { data: proceedingTypes, isLoading: typesLoading } = useQuery({
     queryKey: ["proceeding-types"],
-    queryFn: () => api.get<ProceedingType[]>("/api/proceeding-types"),
+    queryFn: () => api.get<ProceedingType[]>("/proceeding-types"),
   });
 
   const calculateMutation = useMutation({
     mutationFn: (params: {
       proceeding_type: string;
       trigger_event_date: string;
-    }) => api.post<CalculateResponse>("/api/deadlines/calculate", params),
+    }) => api.post<CalculateResponse>("/deadlines/calculate", params),
   });
 
   function handleCalculate(e: React.FormEvent) {
diff --git a/frontend/src/components/deadlines/DeadlineList.tsx b/frontend/src/components/deadlines/DeadlineList.tsx
index 3c30020..7050c16 100644
--- a/frontend/src/components/deadlines/DeadlineList.tsx
+++ b/frontend/src/components/deadlines/DeadlineList.tsx
@@ -54,12 +54,12 @@ export function DeadlineList() {
 
   const { data: deadlines, isLoading } = useQuery({
     queryKey: ["deadlines"],
-    queryFn: () => api.get<Deadline[]>("/api/deadlines"),
+    queryFn: () => api.get<Deadline[]>("/deadlines"),
   });
 
   const { data: cases } = useQuery({
     queryKey: ["cases"],
-    queryFn: () => api.get<Case[]>("/api/cases"),
+    queryFn: () => api.get<Case[]>("/cases"),
   });
 
   const completeMutation = useMutation({
diff --git a/frontend/src/components/settings/CalDAVSettings.tsx b/frontend/src/components/settings/CalDAVSettings.tsx
index 6935677..96c9a7d 100644
--- a/frontend/src/components/settings/CalDAVSettings.tsx
+++ b/frontend/src/components/settings/CalDAVSettings.tsx
@@ -57,7 +57,7 @@ export function CalDAVSettings({ tenant }: { tenant: Tenant }) {
   // Fetch sync status
   const { data: syncStatus } = useQuery({
     queryKey: ["caldav-status"],
-    queryFn: () => api.get<CalDAVSyncResponse>("/api/caldav/status"),
+    queryFn: () => api.get<CalDAVSyncResponse>("/caldav/status"),
     refetchInterval: 30_000,
   });
 
@@ -83,7 +83,7 @@ export function CalDAVSettings({ tenant }: { tenant: Tenant }) {
 
   // Trigger sync
   const syncMutation = useMutation({
-    mutationFn: () => api.post<CalDAVSyncResponse>("/api/caldav/sync"),
+    mutationFn: () => api.post<CalDAVSyncResponse>("/caldav/sync"),
     onSuccess: (result) => {
       queryClient.invalidateQueries({ queryKey: ["caldav-status"] });
       if (result.status === "ok") {