diff --git a/src/main/java/com/dingxianginc/ctu/client/CaptchaClient.java b/src/main/java/com/dingxianginc/ctu/client/CaptchaClient.java
index dc3d67d..45419a2 100644
--- a/src/main/java/com/dingxianginc/ctu/client/CaptchaClient.java
+++ b/src/main/java/com/dingxianginc/ctu/client/CaptchaClient.java
@@ -8,6 +8,7 @@
 import com.dingxianginc.ctu.client.util.InputStreamUtils;
 import com.dingxianginc.ctu.client.util.StringUtils;
 import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.http.HttpHost;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
@@ -50,6 +51,24 @@ public CaptchaClient(
                     .build();
   }
 
+  public CaptchaClient(String appId,
+                   String appSecret,
+                   int connectTimeout,
+                   int connectionRequestTimeout,
+                   int socketTimeout,
+                   String proxyHostName,
+                   int proxyPort) {
+    this.appId = appId;
+    this.appSecret = appSecret;
+    this.httpClient = HttpClientPool.getInstance().getHttpClient();
+    this.requestConfig = RequestConfig.custom()
+            .setConnectTimeout(connectTimeout)
+            .setConnectionRequestTimeout(connectionRequestTimeout)
+            .setSocketTimeout(socketTimeout)
+            .setProxy(new HttpHost(proxyHostName, proxyPort))
+            .build();
+  }
+
   public CaptchaResponse verifyToken(String token, String ip) throws Exception {
     return getResponse(token, ip);
   }
diff --git a/src/main/java/com/dingxianginc/ctu/client/CtuClient.java b/src/main/java/com/dingxianginc/ctu/client/CtuClient.java
index b5a9267..33b8ed9 100644
--- a/src/main/java/com/dingxianginc/ctu/client/CtuClient.java
+++ b/src/main/java/com/dingxianginc/ctu/client/CtuClient.java
@@ -11,6 +11,7 @@
 import com.dingxianginc.ctu.client.util.InputStreamUtils;
 import com.dingxianginc.ctu.client.util.SignUtil;
 import org.apache.commons.codec.binary.Base64;
+import org.apache.http.HttpHost;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpPost;
@@ -52,6 +53,26 @@ public CtuClient(
             .setSocketTimeout(socketTimeout).build();
   }
 
+  public CtuClient(String url,
+                   String appKey,
+                   String appSecret,
+                   int connectTimeout,
+                   int connectionRequestTimeout,
+                   int socketTimeout,
+                   String proxyHostName,
+                   int proxyPort) {
+    this.url = url;
+    this.appKey = appKey;
+    this.appSecret = appSecret;
+    this.httpClient = HttpClientPool.getInstance().getHttpClient();
+    this.requestConfig = RequestConfig.custom()
+            .setConnectTimeout(connectTimeout)
+            .setConnectionRequestTimeout(connectionRequestTimeout)
+            .setSocketTimeout(socketTimeout)
+            .setProxy(new HttpHost(proxyHostName, proxyPort))
+            .build();
+  }
+
   public CtuResponse checkRisk(CtuRequest request) throws Exception {
     String sign = SignUtil.sign(appSecret, request);
     String reqUrl = String.format("%s?appKey=%s&sign=%s&version=%s", url, appKey, sign, version);