diff --git a/cs25-service/src/main/java/com/example/cs25service/domain/ai/service/BraveSearchMcpService.java b/cs25-service/src/main/java/com/example/cs25service/domain/ai/service/BraveSearchMcpService.java
index ae595d61..17f9caeb 100644
--- a/cs25-service/src/main/java/com/example/cs25service/domain/ai/service/BraveSearchMcpService.java
+++ b/cs25-service/src/main/java/com/example/cs25service/domain/ai/service/BraveSearchMcpService.java
@@ -6,6 +6,7 @@
 import io.modelcontextprotocol.spec.McpSchema.CallToolRequest;
 import io.modelcontextprotocol.spec.McpSchema.CallToolResult;
 import io.modelcontextprotocol.spec.McpSchema.ListToolsResult;
+import java.time.Duration;
 import java.util.List;
 import java.util.Map;
 import lombok.RequiredArgsConstructor;
@@ -18,45 +19,65 @@
 public class BraveSearchMcpService {
 
     private static final String BRAVE_WEB_TOOL = "brave_web_search";
-
+    private static final Duration INIT_TIMEOUT = Duration.ofSeconds(60);
     private final List<McpSyncClient> mcpClients;
-
     private final ObjectMapper objectMapper;
 
     public JsonNode search(String query, int count, int offset) {
-        McpSyncClient braveClient = resolveBraveClient();
-
-        CallToolRequest request = new CallToolRequest(
-            BRAVE_WEB_TOOL,
-            Map.of("query", query, "count", count, "offset", offset)
-        );
-
-        CallToolResult result = braveClient.callTool(request);
-
-        JsonNode content = objectMapper.valueToTree(result.content());
-        log.info("[Brave MCP Response Raw content]: {}", content.toPrettyString());
-        
-        if (content != null && content.isArray()) {
-            var root = objectMapper.createObjectNode();
-            root.set("results", content);
-            return root;
+        try {
+            McpSyncClient braveClient = resolveBraveClient(); // 내부에서 초기화/툴 확인
+
+            // 실제 호출
+            CallToolRequest request = new CallToolRequest(
+                BRAVE_WEB_TOOL,
+                Map.of("query", query, "count", count, "offset", offset)
+            );
+            CallToolResult result = braveClient.callTool(request);
+
+            JsonNode content = objectMapper.valueToTree(result.content());
+            log.info("[Brave MCP Response Raw content]: {}",
+                content != null ? content.toPrettyString() : "null");
+
+            if (content != null && content.isArray()) {
+                var root = objectMapper.createObjectNode();
+                root.set("results", content);
+                return root;
+            }
+            return content != null ? content : objectMapper.createObjectNode();
+
+        } catch (Exception e) {
+            // 폴백: 벡터 검색만 사용
+            log.warn("Brave MCP 호출 실패 - 질문: [{}], 벡터 검색만 사용합니다. 사유={}", query, e.toString());
+            return objectMapper.createObjectNode(); // 호출부에서 null 체크보다 빈 객체가 안전
         }
+    }
 
-        return content != null ? content : objectMapper.createObjectNode();
+    private void ensureInitialized(McpSyncClient client) {
+        if (!client.isInitialized()) {
+            synchronized (client) {               // 다중 스레드 초기화 경합 방지
+                if (!client.isInitialized()) {
+                    log.debug("MCP 클라이언트 초기화 시작…");
+                    client.initialize();          // 매개변수 없는 버전
+                    log.debug("MCP 클라이언트 초기화 완료");
+                }
+            }
+        }
     }
 
     private McpSyncClient resolveBraveClient() {
         for (McpSyncClient client : mcpClients) {
-            ListToolsResult tools = client.listTools();
-            if (tools != null && tools.tools() != null) {
-                boolean found = tools.tools().stream()
-                    .anyMatch(tool -> BRAVE_WEB_TOOL.equalsIgnoreCase(tool.name()));
-                if (found) {
+            try {
+                ensureInitialized(client);                // 초기화
+                ListToolsResult tools = client.listTools();
+                if (tools != null && tools.tools() != null &&
+                    tools.tools().stream()
+                        .anyMatch(t -> BRAVE_WEB_TOOL.equalsIgnoreCase(t.name()))) {
                     return client;
                 }
+            } catch (Exception e) {
+                log.debug("Brave MCP 클라이언트 후보 실패: {}", e.toString());
             }
         }
-
-        throw new IllegalStateException("Brave MCP 서버에서 brave_web_search 툴을 찾을 수 없습니다.");
+        throw new IllegalStateException("Brave MCP 서버에서 '" + BRAVE_WEB_TOOL + "' 툴을 찾을 수 없습니다.");
     }
 }
diff --git a/cs25-service/src/main/resources/application.properties b/cs25-service/src/main/resources/application.properties
index 0ad81543..f5ea13aa 100644
--- a/cs25-service/src/main/resources/application.properties
+++ b/cs25-service/src/main/resources/application.properties
@@ -65,7 +65,7 @@ spring.ai.chat.client.enabled=false
 # MCP
 spring.ai.mcp.client.enabled=true
 spring.ai.mcp.client.type=SYNC
-spring.ai.mcp.client.request-timeout=45s
+spring.ai.mcp.client.request-timeout=60s
 spring.ai.mcp.client.root-change-notification=false
 # STDIO Connect: Brave Search
 spring.ai.mcp.client.stdio.connections.brave.command=server-brave-search