diff --git a/package.json b/package.json
index eb91254..ce8733d 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,8 @@
     "db:create": "wrangler d1 create telegram-summary-db",
     "db:init": "wrangler d1 execute telegram-summary-db --file=schema.sql",
     "db:init:local": "wrangler d1 execute telegram-summary-db --local --file=schema.sql",
-    "tail": "wrangler tail"
+    "tail": "wrangler tail",
+    "chat": "npx tsx scripts/chat.ts"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "^4.20241127.0",
diff --git a/scripts/chat.ts b/scripts/chat.ts
new file mode 100644
index 0000000..d9051f4
--- /dev/null
+++ b/scripts/chat.ts
@@ -0,0 +1,103 @@
+#!/usr/bin/env npx tsx
+/**
+ * Telegram Bot CLI Chat Client
+ * - Worker의 /api/test 엔드포인트를 통해 직접 대화
+ * - 사용법: npx tsx scripts/chat.ts
+ *          또는: npx tsx scripts/chat.ts "메시지"
+ */
+
+import * as readline from 'readline';
+
+const WORKER_URL = process.env.WORKER_URL || 'https://telegram-summary-bot.kappa-d8e.workers.dev';
+const WEBHOOK_SECRET = process.env.WEBHOOK_SECRET;
+const USER_ID = process.env.TELEGRAM_USER_ID || '821596605';
+
+interface TestResponse {
+  input: string;
+  response: string;
+  user_id: string;
+  error?: string;
+}
+
+async function sendMessage(text: string): Promise<string> {
+  if (!WEBHOOK_SECRET) {
+    return '❌ WEBHOOK_SECRET 환경변수가 필요합니다.\n   export WEBHOOK_SECRET="your-secret"';
+  }
+
+  try {
+    const response = await fetch(`${WORKER_URL}/api/test`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        text,
+        user_id: USER_ID,
+        secret: WEBHOOK_SECRET,
+      }),
+    });
+
+    const data = await response.json() as TestResponse;
+
+    if (data.error) {
+      return `❌ Error: ${data.error}`;
+    }
+
+    return data.response;
+  } catch (error) {
+    return `❌ Request failed: ${error}`;
+  }
+}
+
+async function interactiveMode() {
+  console.log('🤖 Telegram Bot CLI');
+  console.log(`📡 ${WORKER_URL}`);
+  console.log(`👤 User: ${USER_ID}`);
+  console.log('─'.repeat(40));
+  console.log('메시지를 입력하세요. 종료: exit\n');
+
+  const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout,
+  });
+
+  const prompt = () => {
+    rl.question('\x1b[36m>\x1b[0m ', async (input) => {
+      const text = input.trim();
+
+      if (text === 'exit' || text === 'quit' || text === 'q') {
+        console.log('👋 종료');
+        rl.close();
+        process.exit(0);
+      }
+
+      if (!text) {
+        prompt();
+        return;
+      }
+
+      console.log('\x1b[33m⏳ 처리 중...\x1b[0m');
+      const response = await sendMessage(text);
+      console.log(`\n\x1b[32m🤖\x1b[0m ${response}\n`);
+      prompt();
+    });
+  };
+
+  prompt();
+}
+
+async function main() {
+  const args = process.argv.slice(2);
+
+  if (args.length > 0) {
+    // 단일 메시지 모드
+    const text = args.join(' ');
+    const response = await sendMessage(text);
+    console.log(response);
+  } else {
+    // 대화형 모드
+    await interactiveMode();
+  }
+}
+
+main().catch(console.error);
diff --git a/src/index.ts b/src/index.ts
index dbfc91c..62a3365 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -390,6 +390,64 @@ export default {
       }
     }
 
+    // 테스트 API - 메시지 처리 후 응답 직접 반환
+    if (url.pathname === '/api/test' && request.method === 'POST') {
+      try {
+        const body = await request.json() as { text: string; user_id?: string; secret?: string };
+
+        // 간단한 인증
+        if (body.secret !== env.WEBHOOK_SECRET) {
+          return Response.json({ error: 'Unauthorized' }, { status: 401 });
+        }
+
+        if (!body.text) {
+          return Response.json({ error: 'text required' }, { status: 400 });
+        }
+
+        const telegramUserId = body.user_id || '821596605';
+        const chatIdStr = telegramUserId;
+
+        // 사용자 조회/생성
+        const userId = await getOrCreateUser(env.DB, telegramUserId, 'TestUser', 'testuser');
+
+        let responseText: string;
+
+        // 명령어 처리
+        if (body.text.startsWith('/')) {
+          const [command, ...argParts] = body.text.split(' ');
+          const args = argParts.join(' ');
+          responseText = await handleCommand(env, userId, chatIdStr, command, args);
+        } else {
+          // 1. 사용자 메시지 버퍼에 추가
+          await addToBuffer(env.DB, userId, chatIdStr, 'user', body.text);
+
+          // 2. AI 응답 생성
+          responseText = await generateAIResponse(env, userId, chatIdStr, body.text, telegramUserId);
+
+          // 3. 봇 응답 버퍼에 추가
+          await addToBuffer(env.DB, userId, chatIdStr, 'bot', responseText);
+
+          // 4. 임계값 도달시 프로필 업데이트
+          const { summarized } = await processAndSummarize(env, userId, chatIdStr);
+          if (summarized) {
+            responseText += '\n\n👤 프로필이 업데이트되었습니다.';
+          }
+        }
+
+        // HTML 태그 제거 (CLI 출력용)
+        const plainText = responseText.replace(/<[^>]*>/g, '');
+
+        return Response.json({
+          input: body.text,
+          response: plainText,
+          user_id: telegramUserId,
+        });
+      } catch (error) {
+        console.error('[Test API] Error:', error);
+        return Response.json({ error: String(error) }, { status: 500 });
+      }
+    }
+
     // Telegram Webhook 처리
     if (url.pathname === '/webhook') {
       // 보안 검증