diff --git a/lib/http.js b/lib/http.js
index bc44ed8..07914a1 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -13,21 +13,25 @@ var OS_NAME = SYS.getOS();
 var OS_ARCH = SYS.getArch();
 var DEVICE_UUID = SYS.getUUID();
 var PROCESS_VERSION = SYS.getProcessVersion();
-
 var DEFAULT_USER_AGENT = "WelsonJS/0.2.7 (" + OS_NAME + "; " + OS_ARCH + "; " + PROCESS_VERSION + "; " + DEVICE_UUID + "; abuse@catswords.net)";
-
-// [lib/http] Proxy API services (e.g., ScrapeOps) integration #143
-// https://github.com/gnh1201/welsonjs/issues/143
 var AVAILABLE_PROXIES = [
     {
         "type": "stateless",
         "provider": "scrapeops",
-        "url": "https://proxy.scrapeops.io/v1/?api_key={api_key}&url={url}&render_js={render_js}&residential={residential}&country={country}&keep_headers={keep_headers}"
+        "url": "https://proxy.scrapeops.io/v1/?api_key={api_key}&url={url}&render_js={render_js}&residential={residential}&country={country}&keep_headers={keep_headers}",
+        "documentation": "https://scrapeops.io?fpr=namhyeon75"
     },
     {
         "type": "stateful",
         "provider": "scrapeops",
-        "url": "http://scrapeops:{api_key}@residential-proxy.scrapeops.io:8181"
+        "url": "http://scrapeops:{api_key}@residential-proxy.scrapeops.io:8181",
+        "documentation": "https://scrapeops.io?fpr=namhyeon75"
+    },
+    {
+        "type": "stateless-jsonrpc2",
+        "provider": "gnh1201/caterpillar",
+        "url": "http://localhost:5555",
+        "documentation": "https://github.com/gnh1201/caterpillar"
     }
 ];