diff --git a/VERSION.json b/VERSION.json
index 7b36fa445..d5cd3311a 100644
--- a/VERSION.json
+++ b/VERSION.json
@@ -1 +1 @@
-{"major":2, "minor":4, "hotfix":167}
+{"major":3, "minor":0, "hotfix":0}
diff --git a/src/Lib/Tools/HttpTool.php b/src/Lib/Tools/HttpTool.php
index cf4c4f5db..c7da589e4 100644
--- a/src/Lib/Tools/HttpTool.php
+++ b/src/Lib/Tools/HttpTool.php
@@ -132,7 +132,8 @@ class HttpTool extends CakeClient
         }
 
         // Add user-agent
-        $this->_defaultConfig['headers']['User-Agent'] = "MISP - Threat Intelligence & Sharing Platform"; // LATER add MISP version 
+        $this->_defaultConfig['headers']['User-Agent'] = "MISP - Threat Intelligence & Sharing Platform";
+        // TODO add MISP version? or only do it for server to server communication? (see configFromServer())
     }
 
     /**
@@ -159,9 +160,31 @@ class HttpTool extends CakeClient
             if (!empty($server['skip_proxy'])) {
                 $this->_defaultConfig['skip_proxy'] = true;
             }
+            if (!empty($server['authkey'])) {
+                $this->_defaultConfig['headers']['Authorization'] = $server['authkey'];
+            }
+            $this->_defaultConfig['headers']['Accept'] = 'application/json';
+            $this->_defaultConfig['headers']['Content-Type'] = 'application/json';
+            // we're talking to another MISP server, it is therefore interesting to share out version and UUID to ensure compatible communication
+            $this->shareMISPInfo();
         }
     }
 
+        
+    /**
+     * shareMISPInfo - share MISP version and UUID in the headers
+     *
+     * @return void
+     */
+    public function shareMISPInfo()
+    {
+        $misp_version = implode('.', \App\Lib\Tools\MISPTool::getVersion());
+        // FIXME set User-Agent is alread set, but without with MISP version: and co - 'User-Agent' => 'MISP ' . $version . (empty($commit) ? '' : ' - #' . $commit),
+        $this->_defaultConfig['headers']['MISP-version'] = $misp_version;
+        $this->_defaultConfig['headers']['MISP-uuid'] = Configure::read('MISP.uuid');
+
+    }
+
 
     /**
      * Helper method for doing requests. This method is there to provide us a wrapper implementing custom MISP options.
diff --git a/src/Lib/Tools/MISPTool.php b/src/Lib/Tools/MISPTool.php
new file mode 100644
index 000000000..8522103fc
--- /dev/null
+++ b/src/Lib/Tools/MISPTool.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Lib\Tools;
+
+use App\Lib\Tools\FileAccessTool;
+use App\Lib\Tools\JsonTool;
+
+class MISPTool
+{
+
+    /**
+     * Returns MISP version from VERSION.json file as array with major, minor and hotfix keys.
+     *
+     * @return array
+     * @throws JsonException
+     */
+    public static function getVersion()
+    {
+        
+        static $versionArray;
+        if ($versionArray === null) {
+            $content = FileAccessTool::readFromFile(ROOT . DS . 'VERSION.json');
+            $versionArray = JsonTool::decode($content);
+        }
+        return $versionArray;
+    }
+}
\ No newline at end of file
diff --git a/src/Model/Table/AppTable.php b/src/Model/Table/AppTable.php
index 379970ccd..263dc8bf4 100644
--- a/src/Model/Table/AppTable.php
+++ b/src/Model/Table/AppTable.php
@@ -303,4 +303,14 @@ class AppTable extends Table
         }
         return $this->Log;
     }
+ 
+    /**
+     * @deprecated checkMISPVersion - use \App\Lib\Tools\MISPTool::getVersion() instead
+     *
+     * @return array
+     */
+    public function checkMISPVersion() 
+    {
+        return \App\Lib\Tools\MISPTool::getVersion();
+    }
 }
diff --git a/src/VERSION.json b/src/VERSION.json
deleted file mode 100644
index a51d7e020..000000000
--- a/src/VERSION.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-    "version": "1.8",
-    "application": "Cerebrate"
-}