diff --git a/frontend/src/lib/sse.ts b/frontend/src/lib/sse.ts
index ffe7baff..7d5933ea 100644
--- a/frontend/src/lib/sse.ts
+++ b/frontend/src/lib/sse.ts
@@ -1,5 +1,5 @@
 import type { ResearchEvent, SSEEvent } from '../types';
-import { getBase } from './api';
+import { getBase, authHeaders } from './api';
 
 export interface ChatRequest {
   model: string;
@@ -16,7 +16,7 @@ export async function* streamChat(
   const base = getBase();
   const response = await fetch(`${base}/v1/chat/completions`, {
     method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
+    headers: authHeaders({ 'Content-Type': 'application/json' }),
     body: JSON.stringify(request),
     signal,
   });
@@ -67,7 +67,7 @@ export async function* streamResearch(
   const base = getBase().replace(/\/v1\/?$/, '');
   const response = await fetch(`${base}/api/research`, {
     method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
+    headers: authHeaders({ 'Content-Type': 'application/json' }),
     body: JSON.stringify({ query }),
     signal,
   });
@@ -106,3 +106,4 @@ export async function* streamResearch(
     reader.releaseLock();
   }
 }
+