diff --git a/data/test-misc.json b/data/test-misc.json
index 3de79dd..30da10a 100644
--- a/data/test-misc.json
+++ b/data/test-misc.json
@@ -1,6 +1,6 @@
 {
     "description": "WelsonJS test profile (test-misc.json)",
-    "released": "2024-09-25",
+    "released": "2024-09-27",
     "dependencies": {
         "welsonjs": "0.2.7"
     },
@@ -93,7 +93,12 @@
         },
         {
             "id": "proxy_custom_provider",
-            "description": "HTTP proxy with a custom provider",
+            "description": "HTTP proxy with an web proxy provider",
+            "tags": ["Network", "HTTP"]
+        },
+        {
+            "id": "proxy_serp",
+            "description": "HTTP proxy with a SERP provider",
             "tags": ["Network", "HTTP"]
         }
     ]
diff --git a/lib/http.js b/lib/http.js
index b54f951..9847f0c 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -29,6 +29,12 @@ var AVAILABLE_PROXIES = [
         "url": "http://scrapeops:{api_key}@residential-proxy.scrapeops.io:8181",
         "documentation": "https://scrapeops.io?fpr=namhyeon75"
     },
+    {
+        "type": "serp",
+        "provider": "searchapi",
+        "url": "https://www.searchapi.io/api/v1/search?api_key={api_key}&engine={engine}&q={q}",
+        "documentation": "https://www.searchapi.io/?via=namhyeon"
+    },
     {
         "type": "stateless-jsonrpc2",
         "provider": "gnh1201/caterpillar",
@@ -99,7 +105,7 @@ var HTTPObject = function(engine) {
         "host": "127.0.0.1",
         "port": 80,
         "credential": null, // { username: "user", password: "pass" }
-        "url": ""  // stateless only
+        "url": null  // stateless only
     };
     this.engine = (typeof(engine) !== "undefined" ? engine : "MSXML");
 
@@ -140,7 +146,7 @@ var HTTPObject = function(engine) {
     this.curlOptions = [];
 
     this.charset = FILE.CdoCharset.CdoUTF_8;
-    this.isUseCharsetDetector = false;
+    this.isUseDetectCharset = false;
     this.isVerifySSL = true;
     this.isCompressedResponse = false;
 
@@ -258,17 +264,12 @@ var HTTPObject = function(engine) {
             });
 
             if (typeof availableProxy !== "undefined") {
-                this.proxy.provider = proxy['provider'];
-
-                if (proxyType == "stateless") {
-                    this.proxy.url = availableProxy.url;
-                } else {
-                    this.proxy.protocol = proxy['protocol'] || this.proxy.protocol;
-                    this.proxy.host = proxy['host'] || this.proxy.host;
-                    this.proxy.port = proxy['port'] || this.proxy.port;
-                    this.proxy.credential = proxy['credential'] || this.proxy.credential;
-                    this.proxy.url = proxy['url'] || this.proxy.url;
-                }
+                this.proxy.provider = availableProxy['provider'];
+                this.proxy.protocol = availableProxy['protocol'] || this.proxy.protocol;
+                this.proxy.host = availableProxy['host'] || this.proxy.host;
+                this.proxy.port = availableProxy['port'] || this.proxy.port;
+                this.proxy.credential = availableProxy['credential'] || this.proxy.credential;
+                this.proxy.url = availableProxy['url'] || this.proxy.url;
 
                 console.info("Please check documentation:", availableProxy.documentation);
             }
@@ -480,6 +481,14 @@ var HTTPObject = function(engine) {
     };
 
     this.getProxiedURL = function(url) {
+        if (!this.proxy.enabled) return url;
+
+        if (this.proxy.type == "serp") {
+            var serp = this.parseSerpUrl(url);
+            this.setVariable("engine", serp.engine);
+            this.setVariable("q", encodeURIComponent(serp.keyword));
+        }
+
         this.setVariable("url", encodeURIComponent(url));
         url = this.evaluate(this.proxy.url);
 
@@ -488,6 +497,32 @@ var HTTPObject = function(engine) {
         return url;
     };
 
+    this.parseSerpUrl = function(url) {
+        var getEngine = function(url) {
+            var match = url.match(/(?:https?:\/\/)?(?:www\.)?(google|youtube|bing|baidu|amazon)\.\w+/), result;
+            if (match) {
+                result = match[1];
+            } else {
+                result = "google";
+            }
+            return result;
+        };
+
+        var getKeyword = function(url) {
+            var regex = /[?&](q|wd|query|k)=([^&]*)/g;
+            var match, keywords = [];
+            while ((match = regex.exec(url)) !== null) {
+                keywords.push(match[2]);
+            }
+            return keywords.join(' ');
+        };
+
+        return {
+            "engine": getEngine(url),
+            "keyword": getKeyword(url)
+        }
+    };
+
     this.open = function(method, url) {
         var url = this.serializeParameters(url);
 
@@ -646,7 +681,7 @@ var HTTPObject = function(engine) {
                     }
 
                     // Add proxy: <[protocol://][user:password@]proxyhost[:port]>
-                    if (this.proxy != null && this.proxy.enabled && this.proxy.type != "stateless") {
+                    if (this.proxy != null && this.proxy.enabled && this.proxy.type == "stateful") {
                         cmd.push("-x");
                         if (this.proxy.credential != null) {
                             cmd.push([
@@ -703,7 +738,7 @@ var HTTPObject = function(engine) {
                     }
 
                     // If enabled the charset(text encoding) detector
-                    if (this.isUseCharsetDetector) {
+                    if (this.isUseDetectCharset) {
                         var detectedCharset = this.detectCharset(responseText);
                         console.log("Detected charset:", detectedCharset);
 
@@ -1062,8 +1097,8 @@ var HTTPObject = function(engine) {
         return this;
     };
     
-    this.setIsUseCharsetDetector = function(flag) {
-        this.isUseCharsetDetector = flag;
+    this.setIsUseDetectCharset = function(flag) {
+        this.isUseDetectCharset = flag;
         return this;
     };
 
@@ -1175,7 +1210,7 @@ exports.parseURL = parseURL;
 exports.DEFAULT_USER_AGENT = DEFAULT_USER_AGENT;
 exports.defaultUserAgent = DEFAULT_USER_AGENT;    // compatible
 
-exports.VERSIONINFO = "HTTP REST Client (http.js) version 0.7.35";
+exports.VERSIONINFO = "HTTP REST Client (http.js) version 0.7.36";
 exports.AUTHOR = "abuse@catswords.net";
 exports.global = global;
 exports.require = global.require;
diff --git a/testloader.js b/testloader.js
index e299fc1..b20ab1b 100644
--- a/testloader.js
+++ b/testloader.js
@@ -1023,6 +1023,25 @@ var test_implements = {
             .open("GET", "https://example.org")
             .send();
 
+        console.log("responseBody:", response.responseBody);
+    },
+    
+    "proxy_serp": function() {
+        var HTTP = require("lib/http");
+
+        var response = HTTP.create("CURL")
+            .setVariables({
+                "api_key": "2DG3WQgeL2djLFvnQBw83J4y"
+            })
+            .setProxy({
+                "enabled": true,
+                "provider": "searchapi",
+                "type": "serp"
+            })
+            .setUserAgent("Mozilla/5.0 (Windows NT 10.0; Trident/7.0; rv:11.0) like Gecko")
+            .open("GET", "https://www.google.com/search?q=test")
+            .send();
+
         console.log("responseBody:", response.responseBody);
     }
 };