diff --git a/composer.json b/composer.json
index fe23c6e..95e1348 100644
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,6 @@
 		"ext-gmp" : "*",
 		"ext-mbstring" : "*",
 		"ext-openssl" : "*",
-		"google/flatbuffers" : "*",
 		"textalk/websocket" : "*"
 	},
 	"suggest" : {
diff --git a/src/NanoIPC.php b/src/NanoIPC.php
index 72014c2..e35fd16 100644
--- a/src/NanoIPC.php
+++ b/src/NanoIPC.php
@@ -12,6 +12,7 @@ class NanoIPC
     
     private $transportType;
     private $transport;
+    private $encoding;
     private $preamble;
     private $pathToSocket;
     private $hostname;
@@ -36,7 +37,7 @@ class NanoIPC
     // ## Initialization
     // #
     
-    public function __construct(string $transport_type, array $parameters)
+    public function __construct(string $transport_type, array $params)
     {
         // # Unix domain Socket
         
@@ -81,9 +82,6 @@ public function __construct(string $transport_type, array $parameters)
                 $this->error,
                 15
             );
-            if ($this->transport === false) {
-                return false;
-            }
             
             
         // #
@@ -93,10 +91,28 @@ public function __construct(string $transport_type, array $parameters)
         }
         
         $this->transportType = $transport_type;
-        $this->preamble      = 'N' . chr(4) . chr(0) . chr(0);
+        $this->preamble      = 'N' . chr(1) . chr(0) . chr(0);
     }
 
     
+    // #
+    // ## Set encoding
+    // #
+    
+    public function setEncoding(int $encoding)
+    {
+        if ($encoding != 1 &&
+            $encoding != 2 &&
+            $encoding != 4
+        ) {
+            throw new NanoIPCException("Invalid encoding: $encoding");
+        }
+        
+        $this->encoding = $encoding;
+        $this->preamble = 'N' . chr($this->encoding) . chr(0) . chr(0);
+    }
+    
+    
     // #
     // ## Set Nano authentication
     // #
@@ -148,18 +164,33 @@ public function __call($method, array $params)
             }
         }
         
-        $envelope = [
-            'message_type' => $method,
-            'message'      => $arguments
-        ];
         
-        // Nano auth type
-        if ($this->authType == 'Nano') {
-            $envelope['credentials'] = $this->nanoAPIkey;
+        // # Encoding switch
+        
+        // 1/2
+        if ($this->encoding == 1 || 
+            $this->encoding == 2
+        ) {
+            $request = $arguments;
+            $request['action'] = $method;
+        // 4
+        } elseif ($this->encoding == 4) {
+            $request = [
+                'id'           => $this->id,
+                'message_type' => $method,
+                'message'      => $arguments
+            ];
+            
+            // Nano auth type
+            if ($this->authType == 'Nano') {
+                $request['credentials'] = $this->nanoAPIkey;
+            }
+        } else {
+            //
         }
-
-        $envelope = json_encode($envelope);
-        $buffer   = $this->preamble . pack("N", strlen($envelope)) . $envelope;
+        
+        $request = json_encode($request);
+        $buffer  = $this->preamble . pack("N", strlen($request)) . $request;
         
         
         // # Transport switch
@@ -198,30 +229,44 @@ public function __call($method, array $params)
         // #
         
         } else {
-            return false;
+            
         }
         
-        
-        // # Return and errors
-        
         $this->response = json_decode($this->responseRaw, true);
         
-        $this->responseType = $this->response['message_type'];
         
-        if (isset($this->response['time'])) {
-            $this->responseTime = (int) $this->response['time'];
-        }
-        
-        if (isset($this->response['id'])) {
-            $this->responseId = (int) $this->response['id'];
-        }
+        // # Encoding switch
         
-        if ($this->response['message_type'] == 'Error') {
-            $this->error     = $this->response['message'];
-            $this->errorCode = (int) $this->response['message']['code'];
+        // 1/2
+        if ($this->encoding == 1 ||
+            $this->encoding == 2
+        ) {
+            if (isset($this->response['error'])) {
+                $this->error = $this->response['error'];
+            }
+        // 4
+        } elseif ($this->encoding == 4) {
+            $this->responseType = $this->response['message_type'];
+            
+            if (isset($this->response['time'])) {
+                $this->responseTime = (int) $this->response['time'];
+            }
+            
+            if (isset($this->response['id'])) {
+                $this->responseId = (int) $this->response['id'];
+            }
+            
+            if ($this->response['message_type'] == 'Error') {
+                $this->error     = $this->response['message'];
+                $this->errorCode = (int) $this->response['message']['code'];
+            }
+            
+            $this->response = $this->response['message'];
+        } else {
+            //
         }
         
-        $this->response = $this->response['message'];
+        // # Return
         
         if ($this->error) {
             return false;
diff --git a/src/NanoRPC.php b/src/NanoRPC.php
index 4e43d10..47135ab 100644
--- a/src/NanoRPC.php
+++ b/src/NanoRPC.php
@@ -168,7 +168,7 @@ public function __call($method, array $params)
         }
         
         
-        // # Version switch
+        // # API switch
         
         // v1
         if ($this->API == 1) {
@@ -254,7 +254,7 @@ public function __call($method, array $params)
         $this->response    = json_decode($this->responseRaw, true);
         
         
-        // # Version switch
+        // # API switch
         
         // v1
         if ($this->API == 1) {
diff --git a/test/NanoIPC.php b/test/NanoIPC.php
index 6dd82bc..08fb6b3 100644
--- a/test/NanoIPC.php
+++ b/test/NanoIPC.php
@@ -2,26 +2,70 @@
 
 require_once __DIR__ . '/autoload.php';
 
+
+// # Unix domain socket encoding 2
+
+$nanoipc_unix = new php4nano\NanoIPC('unix_domain_socket', ['path_to_socket' => '/tmp/nano']);
+
+$nanoipc_unix->setEncoding(2);
+
+$account = 'nano_3dyo9e7wkf8kuykghbjdt78njux3yudhdrhtwaymc8fsmxhxpt1h48zffbse';
+
+$t0 = microtime(true);
+
+$nanoipc_unix->account_weight(['account' => $account]);
+
+echo 'Time unix 2: ' . (microtime(true) - $t0) . PHP_EOL;
+
+var_dump($nanoipc_unix);
+
+
+// # Unix domain socket encoding 4
+
 $nanoipc_unix = new php4nano\NanoIPC('unix_domain_socket', ['path_to_socket' => '/tmp/nano']);
 
+$nanoipc_unix->setEncoding(4);
+
 $account = 'nano_3dyo9e7wkf8kuykghbjdt78njux3yudhdrhtwaymc8fsmxhxpt1h48zffbse';
 
 $t0 = microtime(true);
 
 $nanoipc_unix->AccountWeight(['account' => $account]);
 
-echo 'Time unix: ' . (microtime(true) - $t0) . PHP_EOL;
+echo 'Time unix 4: ' . (microtime(true) - $t0) . PHP_EOL;
 
 var_dump($nanoipc_unix);
 
+
+// # TCP encoding 2
+
+$nanoipc_tcp = new php4nano\NanoIPC('TCP', ['hostname' => 'localhost', 'port' => 7077]);
+
+$nanoipc_tcp->setEncoding(2);
+
+$account = 'nano_3dyo9e7wkf8kuykghbjdt78njux3yudhdrhtwaymc8fsmxhxpt1h48zffbse';
+
+$t0 = microtime(true);
+
+$nanoipc_tcp->account_weight(['account' => $account]);
+
+echo 'Time TCP 2: ' . (microtime(true) - $t0) . PHP_EOL;
+
+var_dump($nanoipc_tcp);
+
+
+// # TCP encoding 4
+
 $nanoipc_tcp = new php4nano\NanoIPC('TCP', ['hostname' => 'localhost', 'port' => 7077]);
 
+$nanoipc_tcp->setEncoding(4);
+
 $account = 'nano_3dyo9e7wkf8kuykghbjdt78njux3yudhdrhtwaymc8fsmxhxpt1h48zffbse';
 
 $t0 = microtime(true);
 
 $nanoipc_tcp->AccountWeight(['account' => $account]);
 
-echo 'Time TCP: ' . (microtime(true) - $t0) . PHP_EOL;
+echo 'Time TCP 4: ' . (microtime(true) - $t0) . PHP_EOL;
 
 var_dump($nanoipc_tcp);
diff --git a/test/NanoRPC.php b/test/NanoRPC.php
index a2d9acb..f829585 100644
--- a/test/NanoRPC.php
+++ b/test/NanoRPC.php
@@ -2,18 +2,32 @@
 
 require_once __DIR__ . '/autoload.php';
 
+
+// # API v1
+
 $nanorpc = new php4nano\NanoRPC('localhost', 7076);
 
 $account = 'nano_3dyo9e7wkf8kuykghbjdt78njux3yudhdrhtwaymc8fsmxhxpt1h48zffbse';
 
+$t0 = microtime(true);
+
 $nanorpc->account_balance(['account' => $account]);
 
+echo 'Time v1: ' . (microtime(true) - $t0) . PHP_EOL;
+
 var_dump($nanorpc);
 
+
+// # API v2
+
 $nanorpc2 = new php4nano\NanoRPC('localhost', 7076, 'api/v2');
 
 $nanorpc2->setAPI(2);
 
+$t0 = microtime(true);
+
 $nanorpc2->AccountWeight(['account' => $account]);
 
+echo 'Time v2: ' . (microtime(true) - $t0) . PHP_EOL;
+
 var_dump($nanorpc2);
diff --git a/test/NanoWS.php b/test/NanoWS.php
index 85c79e4..d74042a 100644
--- a/test/NanoWS.php
+++ b/test/NanoWS.php
@@ -5,7 +5,6 @@
 $nanows = new php4nano\NanoWS('localhost', 7078);
 
 $nanows->subscribe('confirmation');
-//$nanows->keepalive();
 
 while (true) {
     print_r($nanows->listen());