diff --git a/web/src/core/api/chat.ts b/web/src/core/api/chat.ts
index 4a79689..c39100b 100644
--- a/web/src/core/api/chat.ts
+++ b/web/src/core/api/chat.ts
@@ -22,7 +22,7 @@ export function chatStream(
     return chatStreamMock(userMessage, params, options);
   }
   return fetchStream<ChatEvent>(
-    (env.NEXT_PUBLIC_API_URL ?? "/api") + "/chat/stream",
+    (env.NEXT_PUBLIC_API_URL ?? "http://localhost:8000/api") + "/chat/stream",
     {
       body: JSON.stringify({
         messages: [{ role: "user", content: userMessage }],
@@ -56,7 +56,7 @@ async function* chatStreamMock(
   const res = await fetch(mockFile, {
     signal: options.abortSignal,
   });
-  await sleep(800);
+  await sleep(500);
   const text = await res.text();
   const chunks = text.split("\n\n");
   for (const chunk of chunks) {
@@ -66,7 +66,7 @@ async function* chatStreamMock(
     if (event === "message_chunk") {
       await sleep(100);
     } else if (event === "tool_call_result") {
-      await sleep(4000);
+      await sleep(2000);
     }
     try {
       yield {
diff --git a/web/src/core/api/podcast.ts b/web/src/core/api/podcast.ts
index ee4d56d..c323576 100644
--- a/web/src/core/api/podcast.ts
+++ b/web/src/core/api/podcast.ts
@@ -1,14 +1,20 @@
 // Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 // SPDX-License-Identifier: MIT
 
+import { env } from "~/env";
+
 export async function generatePodcast(content: string) {
-  const response = await fetch("/api/podcast/generate", {
-    method: "post",
-    headers: {
-      "Content-Type": "application/json",
+  const response = await fetch(
+    (env.NEXT_PUBLIC_API_URL ?? "http://localhost:8000/api") +
+      "/podcast/generate",
+    {
+      method: "post",
+      headers: {
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify({ content }),
     },
-    body: JSON.stringify({ content }),
-  });
+  );
   if (!response.ok) {
     throw new Error(`HTTP error! status: ${response.status}`);
   }