diff --git a/frontend/lib/types.ts b/frontend/lib/types.ts
index 4951e74e..607a67a6 100644
--- a/frontend/lib/types.ts
+++ b/frontend/lib/types.ts
@@ -11,7 +11,7 @@ export interface AnalysisRequest {
   deep_thinking_agent?: string;
   
   // API Configuration
-  openai_api_key: string;
+  openai_api_key?: string;
   openai_base_url?: string;
   alpha_vantage_api_key?: string;
 }