diff --git a/composer.json b/composer.json
index 9f0d9c6..343c976 100644
--- a/composer.json
+++ b/composer.json
@@ -21,8 +21,8 @@
   ],
   "support": {
     "email": "hello@feedlabs.io",
-    "issues": "https://github.com/feedlabs/sdk-php/issues",
-    "source": "https://github.com/feedlabs/sdk-php"
+    "source": "https://github.com/feedlabs/sdk-php",
+    "issues": "https://github.com/feedlabs/sdk-php/issues"
   },
   "require-dev": {
     "phpunit/phpunit": "~4.1.3",
diff --git a/source/Feedlabs/Feedify/Client.php b/source/Feedlabs/Feedify/Client.php
index 1a777c1..a989ef2 100644
--- a/source/Feedlabs/Feedify/Client.php
+++ b/source/Feedlabs/Feedify/Client.php
@@ -2,7 +2,11 @@
 
 namespace Feedlabs\Feedify;
 
-use Feedlabs\Feedify\Resource\Feed;
+use Feedlabs\Feedify\Client\AdminUserClient;
+use Feedlabs\Feedify\Client\ApplicationClient;
+use Feedlabs\Feedify\Client\EntryClient;
+use Feedlabs\Feedify\Client\FeedClient;
+use Feedlabs\Feedify\Client\TokenClient;
 
 /**
  * Class Client
@@ -12,8 +16,20 @@ class Client {
 
     CONST API_VERSION = 1;
 
-    /** @var string */
-    private static $_apiId;
+    /** @var ApplicationClient */
+    public $application;
+
+    /** @var FeedClient */
+    public $feed;
+
+    /** @var EntryClient */
+    public $entry;
+
+    /** @var AdminUserClient */
+    public $adminUser;
+
+    /** @var TokenClient */
+    public $token;
 
     /** @var string */
     private static $_apiToken;
@@ -22,85 +38,16 @@ class Client {
     private static $_request;
 
     /**
-     * @param string $apiId
      * @param string $apiToken
      */
-    public function __construct($apiId, $apiToken) {
-        static::$_apiId = (string) $apiId;
+    public function __construct($apiToken) {
         static::$_apiToken = (string) $apiToken;
-    }
-
-    /**
-     * @param string $id
-     * @return Feed
-     */
-    public function getFeed($id) {
-        $id = (string) $id;
-        $data = static::getRequest()->get('/feed/' . $id);
-        return new Feed($id, $data);
-    }
-
-    /**
-     * @return Feed[]
-     */
-    public function getFeedList() {
-        $feedList = array();
-        $result = static::getRequest()->get('/feed');
-        foreach ($result as $feedData) {
-            $feedList[] = new Feed($feedData['Id'], array('Data' => $feedData['Data']));
-        }
-        return $feedList;
-    }
-
-    /**
-     * @param array $data
-     * @return string
-     */
-    public function createFeed(array $data) {
-        $result = static::getRequest()->post('/feed', $data);
-        return $result['id'];
-    }
 
-    /**
-     * @param string $id
-     * @param array  $data
-     */
-    public function updateFeed($id, array $data) {
-        static::getRequest()->put('/feed/' . $id, $data);
-    }
-
-    /**
-     * @param string $id
-     */
-    public function deleteFeed($id) {
-        static::getRequest()->delete('/feed/' . $id);
-    }
-
-    /**
-     * @param string $feedId
-     * @param array  $data
-     * @return string
-     */
-    public function createEntry($feedId, array $data) {
-        $result = static::getRequest()->post('/feed/' . $feedId . '/entry', $data);
-        return $result['id'];
-    }
-
-    /**
-     * @param string $feedId
-     * @param string $entryId
-     * @param array  $data
-     */
-    public function updateEntry($feedId, $entryId, array $data) {
-        static::getRequest()->put('/feed/' . $feedId . '/entry/' . $entryId, $data);
-    }
-
-    /**
-     * @param string $feedId
-     * @param string $entryId
-     */
-    public function deleteEntry($feedId, $entryId) {
-        static::getRequest()->delete('/feed/' . $feedId . '/entry/' . $entryId);
+        $this->application = new ApplicationClient();
+        $this->feed = new FeedClient();
+        $this->entry = new EntryClient();
+        $this->adminUser = new AdminUserClient();
+        $this->token = new TokenClient();
     }
 
     /**
@@ -108,7 +55,7 @@ public function deleteEntry($feedId, $entryId) {
      */
     public static function getRequest() {
         if (!static::$_request) {
-            static::$_request = new Request(static::$_apiId, static::$_apiToken);
+            static::$_request = new Request(static::$_apiToken);
         }
         return static::$_request;
     }
diff --git a/source/Feedlabs/Feedify/Client/AdminUserClient.php b/source/Feedlabs/Feedify/Client/AdminUserClient.php
new file mode 100644
index 0000000..530c614
--- /dev/null
+++ b/source/Feedlabs/Feedify/Client/AdminUserClient.php
@@ -0,0 +1,95 @@
+<?php
+
+namespace Feedlabs\Feedify\Client;
+
+use Feedlabs\Feedify\Params;
+use Feedlabs\Feedify\Resource\AdminUser;
+use Feedlabs\Feedify\Resource\AdminUserList;
+
+/**
+ * Class AdminUserClient
+ * @package Feedlabs\Feedify\Client
+ */
+class AdminUserClient {
+
+    /**
+     * @return AdminUserList
+     */
+    public function getList() {
+        // todo: load over API
+        $adminUserList = [];
+        for ($i = 0; $i < 5; $i++) {
+            $adminUserList[] = [
+                'id'          => 'adminUserId-' . $i,
+                'email'       => 'test' . $i . '@example.com',
+                'roleList'    => [['id' => 1, 'name' => 'superAdmin']],
+                'createStamp' => time(),
+            ];
+        }
+
+        return new AdminUserList($adminUserList);
+    }
+
+    /**
+     * @param string $adminUserId
+     * @return AdminUser
+     */
+    public function get($adminUserId) {
+        $adminUserId = (string) $adminUserId;
+        // todo: load over API
+        $data = [
+            'id'          => $adminUserId,
+            'email'       => 'test@example.com',
+            'roleList'    => [['id' => 1, 'name' => 'superAdmin']],
+            'createStamp' => time(),
+        ];
+
+        return new AdminUser(new Params($data));
+    }
+
+    /**
+     * @param string     $email
+     * @param array|null $roleList
+     * @return AdminUser
+     */
+    public function create($email, array $roleList = null) {
+        $email = (string) $email;
+        $roleList = (array) $roleList;
+        // todo: load over API
+        $data = [
+            'id'          => 'ID1234',
+            'email'       => $email,
+            'roleList'    => [['id' => 1, 'name' => 'superAdmin']],
+            'createStamp' => time(),
+        ];
+
+        return new AdminUser(new Params($data));
+    }
+
+    /**
+     * @param string     $adminUserId
+     * @param string     $email
+     * @param array|null $roleList
+     * @return AdminUser
+     */
+    public function update($adminUserId, $email, array $roleList = null) {
+        $adminUserId = (string) $adminUserId;
+        $email = (string) $email;
+        $roleList = (array) $roleList;
+        // todo: load over API
+        $data = [
+            'id'          => 'ID1234',
+            'email'       => $email,
+            'roleList'    => [['id' => 1, 'name' => 'superAdmin']],
+            'createStamp' => time(),
+        ];
+
+        return new AdminUser(new Params($data));
+    }
+
+    public function delete($adminUserId) {
+        $adminUserId = (string) $adminUserId;
+        // todo: load over API
+        // todo: what to return???
+    }
+}
diff --git a/source/Feedlabs/Feedify/Client/ApplicationClient.php b/source/Feedlabs/Feedify/Client/ApplicationClient.php
new file mode 100644
index 0000000..9ec1642
--- /dev/null
+++ b/source/Feedlabs/Feedify/Client/ApplicationClient.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Feedlabs\Feedify\Client;
+
+use Feedlabs\Feedify\Params;
+use Feedlabs\Feedify\Resource\Application;
+use Feedlabs\Feedify\Resource\ApplicationList;
+
+/**
+ * Class ApplicationClient
+ * @package Feedlabs\Feedify\Client
+ */
+class ApplicationClient {
+
+    /**
+     * @return ApplicationList
+     */
+    public function getList() {
+        // todo: load over API
+
+        $applicationList = [];
+        for ($i = 0; $i < 5; $i++) {
+            $applicationList[] = [
+                'id'          => 'id' . $i,
+                'name'        => 'Name-' . $i,
+                'createStamp' => time(),
+            ];
+        }
+
+        return new ApplicationList($applicationList);
+    }
+
+    /**
+     * @param string $applicationId
+     * @return Application
+     */
+    public function get($applicationId) {
+        $applicationId = (string) $applicationId;
+
+        // todo: load over API
+
+        $data = new Params([
+            'id'          => $applicationId,
+            'name'        => 'Name-' . $applicationId,
+            'description' => 'description' . $applicationId,
+            'createStamp' => time(),
+        ]);
+        return new Application($data);
+    }
+
+    /**
+     * @param string      $name
+     * @param string|null $description
+     * @return Application
+     */
+    public function create($name, $description = null) {
+        $name = (string) $name;
+        $description = (string) $description;
+
+        // todo: send / load over API
+
+        $data = new Params([
+            'id'          => 'ABC123',
+            'name'        => 'Name-ABC123',
+            'description' => 'description-ABC123',
+            'createStamp' => time(),
+        ]);
+        return new Application($data);
+    }
+
+    /**
+     * @param string      $applicationId
+     * @param string      $name
+     * @param string|null $description
+     * @return Application
+     */
+    public function update($applicationId, $name, $description = null) {
+        $applicationId = (string) $applicationId;
+        $name = (string) $name;
+        $description = (string) $description;
+
+        // todo: send / load over API
+
+        $data = new Params([
+            'id'          => $applicationId,
+            'name'        => 'Name-' . $applicationId,
+            'description' => 'description' . $applicationId,
+            'createStamp' => time(),
+        ]);
+        return new Application($data);
+    }
+
+    /**
+     * @param string $applicationId
+     */
+    public function delete($applicationId) {
+        $applicationId = (string) $applicationId;
+
+        // todo: send / load over API
+        // todo: think about what to return
+    }
+}
diff --git a/source/Feedlabs/Feedify/Client/EntryClient.php b/source/Feedlabs/Feedify/Client/EntryClient.php
new file mode 100644
index 0000000..797e869
--- /dev/null
+++ b/source/Feedlabs/Feedify/Client/EntryClient.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Feedlabs\Feedify\Client;
+
+/**
+ * Class EntryClient
+ * @package Feedlabs\Feedify\Client
+ */
+class EntryClient {
+
+    public function getList($applicationId, $feedId) {
+        // todo: add
+    }
+
+    public function get($applicationId, $feedId, $entryId) {
+        // todo: add
+    }
+
+    public function create($applicationId, $feedId, $data) {
+        // todo: add
+    }
+
+    public function update($applicationId, $feedId, $entryId, $data) {
+        // todo: add
+    }
+
+    public function delete($applicationId, $feedId, $entryId) {
+        // todo: add
+    }
+}
diff --git a/source/Feedlabs/Feedify/Client/FeedClient.php b/source/Feedlabs/Feedify/Client/FeedClient.php
new file mode 100644
index 0000000..00df188
--- /dev/null
+++ b/source/Feedlabs/Feedify/Client/FeedClient.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Feedlabs\Feedify\Client;
+
+use Feedlabs\Feedify\Params;
+use Feedlabs\Feedify\Resource\Feed;
+use Feedlabs\Feedify\Resource\FeedList;
+
+/**
+ * Class FeedClient
+ * @package Feedlabs\Feedify\Client
+ */
+class FeedClient {
+
+    /**
+     * @param string $applicationId
+     * @return FeedList
+     */
+    public function getList($applicationId) {
+        $applicationId = (string) $applicationId;
+        // $result = static::getRequest()->get('/feed');
+        // foreach ($result as $feedData) {
+        //     $applicationList[] = new Feed($feedData['Id'], array('Data' => $feedData['Data']));
+        // }
+        // todo: load over API
+
+        $feedList = [];
+        for ($i = 0; $i < 5; $i++) {
+            $feedList[] = [
+                'id'          => 'id' . $i,
+                'name'        => 'Name-' . $i,
+                'description' => 'description-' . $i,
+                'channel'     => 'channel-' . $i,
+                'createStamp' => time(),
+            ];
+        }
+
+        return new FeedList($feedList);
+    }
+
+    /**
+     * @param string $applicationId
+     * @param string $feedId
+     * @return Feed
+     */
+    public function get($applicationId, $feedId) {
+        //        $feedId = (string) $feedId;
+        //        $data = static::getRequest()->get('/application/' . $applicationId . '/feed/' . $feedId);
+        //        return new Feed(new Params($data));
+
+        $applicationId = (string) $applicationId;
+        $feedId = (string) $feedId;
+        // $data = static::getRequest()->get('/feed/' . $id);
+        // todo: load over API
+
+        $data = new Params([
+            'id'          => $feedId,
+            'name'        => 'Name-' . $feedId,
+            'description' => 'description' . $feedId,
+            'channel'     => 'channel' . $feedId,
+            'createStamp' => time(),
+        ]);
+        return new Feed($data);
+    }
+
+    public function create($applicationId, $name, $description = null, $tagList = null) {
+        // todo: add
+    }
+
+    public function update($applicationId, $feedId, $name, $description = null, $tagList = null) {
+        // todo: add
+    }
+
+    /**
+     * @param string $applicationId
+     * @param string $feedId
+     */
+    public function delete($applicationId, $feedId) {
+        // todo: add
+    }
+}
diff --git a/source/Feedlabs/Feedify/Client/TokenClient.php b/source/Feedlabs/Feedify/Client/TokenClient.php
new file mode 100644
index 0000000..d087186
--- /dev/null
+++ b/source/Feedlabs/Feedify/Client/TokenClient.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Feedlabs\Feedify\Client;
+
+use Feedlabs\Feedify\Params;
+use Feedlabs\Feedify\Resource\Token;
+use Feedlabs\Feedify\Resource\TokenList;
+
+/**
+ * Class TokenClient
+ * @package Feedlabs\Feedify\Client
+ */
+class TokenClient {
+
+    /**
+     * @return TokenList
+     */
+    public function getList() {
+        // todo: load over API
+
+        $tokenList = [];
+        for ($i = 0; $i < 5; $i++) {
+            $tokenList[] = ['token' => 'token' . $i, 'name' => 'Name-' . $i, 'createStamp' => time()];
+        }
+
+        return new TokenList($tokenList);
+    }
+
+    /**
+     * @param string $token
+     * @return Token
+     */
+    public function get($token) {
+        $token = (string) $token;
+        // todo: load over API
+        $data = ['token' => $token, 'name' => 'Namedjgsfjhsdgfhjsfgdshj', 'createStamp' => time()];
+
+        return new Token(new Params($data));
+    }
+
+    public function create($name) {
+        // todo: load over API
+        $data = ['token' => 'tokenHASH', 'name' => $name, 'createStamp' => time()];
+
+        return new Token(new Params($data));
+    }
+
+    public function delete($token) {
+        // todo: add
+    }
+}
diff --git a/source/Feedlabs/Feedify/Exception/ParamsException.php b/source/Feedlabs/Feedify/Exception/ParamsException.php
new file mode 100644
index 0000000..695269b
--- /dev/null
+++ b/source/Feedlabs/Feedify/Exception/ParamsException.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Feedlabs\Feedify\Exception;
+
+/**
+ * Class ParamsException
+ * @package Feedlabs\Feedify\Exception
+ */
+class ParamsException extends AbstractException {
+
+}
diff --git a/source/Feedlabs/Feedify/Params.php b/source/Feedlabs/Feedify/Params.php
new file mode 100644
index 0000000..69468b9
--- /dev/null
+++ b/source/Feedlabs/Feedify/Params.php
@@ -0,0 +1,174 @@
+<?php
+
+namespace Feedlabs\Feedify;
+
+use Feedlabs\Feedify\Exception\ParamsException;
+
+/**
+ * Class Params
+ * @package Feedlabs\Feedify
+ */
+class Params {
+
+    private $_params;
+
+    /**
+     * @param array|null $params
+     */
+    public function __construct(array $params = null) {
+        $this->_params = $params ?: array();
+    }
+
+    /**
+     * @param string     $key
+     * @param mixed|null $default
+     * @return mixed
+     */
+    public function get($key, $default = null) {
+        return $this->_get($key, $default);
+    }
+
+    /**
+     * @param string $key
+     * @param mixed  $value
+     */
+    public function set($key, $value) {
+        $this->_params[$key] = $value;
+    }
+
+    /**
+     * @param string $key
+     * @return bool
+     */
+    public function has($key) {
+        return array_key_exists($key, $this->_params) && null !== $this->_params[$key];
+    }
+
+    /**
+     * @param string      $key
+     * @param string|null $default
+     * @return float
+     */
+    public function getFloat($key, $default = null) {
+        $param = $this->_get($key, $default);
+        return $this->_getFloat($param);
+    }
+
+    /**
+     * @param string      $key
+     * @param string|null $default
+     * @return string
+     */
+    public function getString($key, $default = null) {
+        $param = $this->_get($key, $default);
+        return $this->_getString($param);
+    }
+
+    /**
+     * @param string      $key
+     * @param string|null $default
+     * @return int
+     */
+    public function getInt($key, $default = null) {
+        $param = $this->_get($key, $default);
+        return $this->_getInt($param);
+    }
+
+    /**
+     * @param string $key
+     * @param array  $default
+     * @return array
+     * @throws ParamsException
+     */
+    public function getArray($key, array $default = null) {
+        $param = $this->_get($key, $default);
+        if (!is_array($param)) {
+            throw new ParamsException('Not an Array');
+        }
+        return (array) $param;
+    }
+
+    /**
+     * @param string  $key
+     * @param boolean $default
+     * @return boolean
+     * @throws ParamsException
+     */
+    public function getBoolean($key, $default = null) {
+        $param = $this->_get($key, $default);
+        if (1 === $param || '1' === $param || 'true' === $param) {
+            $param = true;
+        }
+        if (0 === $param || '0' === $param || 'false' === $param) {
+            $param = false;
+        }
+        if (!is_bool($param)) {
+            throw new ParamsException('Not a boolean');
+        }
+        return (boolean) $param;
+    }
+
+    /**
+     * @param string $key
+     */
+    public function remove($key) {
+        unset($this->_params[$key]);
+    }
+
+    /**
+     * @param string $key
+     * @param mixed  $default
+     * @throws ParamsException
+     * @return mixed
+     */
+    protected function _get($key, $default = null) {
+        if (!$this->has($key) && $default === null) {
+            throw new ParamsException("Param `$key` not set");
+        }
+        if (!$this->has($key) && $default !== null) {
+            return $default;
+        }
+        return $this->_params[$key];
+    }
+
+    /**
+     * @param mixed $param
+     * @return float
+     * @throws ParamsException
+     */
+    private function _getFloat($param) {
+        if (is_float($param) || is_int($param)) {
+            return (float) $param;
+        }
+        if (is_string($param)) {
+            if (preg_match('/^-?(?:\\d++\\.?+\\d*+|\\.\\d++)$/', $param)) {
+                return (float) $param;
+            }
+        }
+        throw new ParamsException('Not a float');
+    }
+
+    /**
+     * @param mixed $param
+     * @return string
+     * @throws ParamsException
+     */
+    private function _getString($param) {
+        if (!is_string($param)) {
+            throw new ParamsException('Not a String');
+        }
+        return (string) $param;
+    }
+
+    /**
+     * @param mixed $param
+     * @return int
+     * @throws ParamsException
+     */
+    private function _getInt($param) {
+        if (!ctype_digit($param) && !is_int($param)) {
+            throw new ParamsException('Not an Integer');
+        }
+        return (int) $param;
+    }
+}
diff --git a/source/Feedlabs/Feedify/Request.php b/source/Feedlabs/Feedify/Request.php
index 0367cf9..d08b2ad 100644
--- a/source/Feedlabs/Feedify/Request.php
+++ b/source/Feedlabs/Feedify/Request.php
@@ -16,18 +16,13 @@ class Request {
     CONST METHOD_DELETE = 4;
     CONST API_URL = 'http://www.feed.dev:10111';
 
-    /** @var string */
-    protected $_apiId;
-
     /** @var string */
     protected $_apiToken;
 
     /**
-     * @param string $apiId
      * @param string $apiToken
      */
-    public function __construct($apiId, $apiToken) {
-        $this->_apiId = $apiId;
+    public function __construct($apiToken) {
         $this->_apiToken = $apiToken;
     }
 
@@ -54,8 +49,8 @@ public function post($path, $data) {
      * @return array
      */
     public function put($path, $data) {
-         return Helper::decode($this->_send(self::METHOD_PUT, $path, $data));
-     }
+        return Helper::decode($this->_send(self::METHOD_PUT, $path, $data));
+    }
 
     /**
      * @param $path
@@ -65,13 +60,6 @@ public function delete($path) {
         return Helper::decode($this->_send(self::METHOD_DELETE, $path));
     }
 
-    /**
-     * @return string
-     */
-    public function getApiId() {
-        return $this->_apiId;
-    }
-
     /**
      * @return string
      */
@@ -96,8 +84,9 @@ protected function _send($method, $path, $data = null) {
         curl_setopt($ch, CURLOPT_TIMEOUT, 10);
         curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0');
 
-        $header = array();
-        $header[] = 'Content-type:application/json';
+        $header = [];
+        $header[] = 'apiToken: ' . $this->getApiToken();
+        $header[] = 'Content-type: application/json';
 
         switch ($method) {
             case self::METHOD_GET:
diff --git a/source/Feedlabs/Feedify/Resource/AbstractElement.php b/source/Feedlabs/Feedify/Resource/AbstractElement.php
new file mode 100644
index 0000000..1ed5411
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/AbstractElement.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Client;
+use Feedlabs\Feedify\Params;
+use Feedlabs\Feedify\Request;
+
+/**
+ * Class AbstractElement
+ * @package Feedlabs\Feedify\Resource
+ */
+abstract class AbstractElement {
+
+    /** @var string */
+    protected $_id;
+
+    /** @var int */
+    protected $_createStamp;
+
+    /**
+     * @param Params $data
+     */
+    public function __construct(Params $data) {
+        $this->_id = $data->getString('id');
+        $this->_createStamp = ($data->has('createStamp')) ? $data->getInt('createStamp') : null;
+    }
+
+    /**
+     * @return string
+     */
+    public function getId() {
+        return $this->_id;
+    }
+
+    /**
+     * @return int
+     */
+    public function getCreated() {
+        if (null === $this->_createStamp) {
+            $this->_load();
+        }
+        return $this->_createStamp;
+    }
+
+    /**
+     * @return Request
+     */
+    protected function _getRequest() {
+        return Client::getRequest();
+    }
+
+    abstract protected function _load();
+}
diff --git a/source/Feedlabs/Feedify/Resource/AbstractList.php b/source/Feedlabs/Feedify/Resource/AbstractList.php
new file mode 100644
index 0000000..462af34
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/AbstractList.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+/**
+ * Class AbstractList
+ * @package Feedlabs\Feedify\Resource
+ */
+abstract class AbstractList implements \Iterator, \Countable {
+
+    /** @var array */
+    private $_itemListRaw;
+
+    /** @var array */
+    private $_itemList;
+
+    /** @var array */
+    private $_iteratorItems;
+
+    /** @var int */
+    private $_iteratorPosition = 0;
+
+    /**
+     * @param array $itemList
+     */
+    public function __construct(array $itemList = null) {
+        $this->_itemListRaw = (array) $itemList;
+    }
+
+    /**
+     * @return array
+     */
+    public function getItems() {
+        if (!$this->_itemList) {
+            $itemList = array();
+            foreach ($this->_itemListRaw as $item) {
+                $itemList[] = $this->_processItem($item);
+            }
+            $this->_itemList = $itemList;
+        }
+        return $this->_itemList;
+    }
+
+    /**
+     * @return int
+     */
+    public function getCount() {
+        return count($this->getItems());
+    }
+
+    /**
+     * @return bool
+     */
+    public function isEmpty() {
+        return 0 === $this->getCount();
+    }
+
+    /**
+     * @param array $item
+     * @return AbstractElement|array
+     */
+    protected function _processItem($item) {
+        return $item;
+    }
+
+    function rewind() {
+        $this->_iteratorItems = $this->getItems();
+        $this->_iteratorPosition = 0;
+    }
+
+    function current() {
+        return $this->_iteratorItems[$this->_iteratorPosition];
+    }
+
+    function key() {
+        return $this->_iteratorPosition;
+    }
+
+    function next() {
+        ++$this->_iteratorPosition;
+    }
+
+    function valid() {
+        return isset($this->_iteratorItems[$this->_iteratorPosition]);
+    }
+
+    public function count() {
+        return $this->getCount();
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/AbstractResource.php b/source/Feedlabs/Feedify/Resource/AbstractResource.php
deleted file mode 100644
index 63986e1..0000000
--- a/source/Feedlabs/Feedify/Resource/AbstractResource.php
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php
-
-namespace Feedlabs\Feedify\Resource;
-
-/**
- * Class AbstractResource
- * @package Feedlabs\Feedify\Resource
- */
-abstract class AbstractResource {
-
-    /** @var string */
-    protected $_id;
-
-    /**
-     * @param string $id
-     */
-    public function __construct($id) {
-        $this->_id = (string) $id;
-    }
-
-    /**
-     * @return string
-     */
-    public function getId() {
-        return $this->_id;
-    }
-}
diff --git a/source/Feedlabs/Feedify/Resource/AdminUser.php b/source/Feedlabs/Feedify/Resource/AdminUser.php
new file mode 100644
index 0000000..3d959f1
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/AdminUser.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class AdminUser
+ * @package Feedlabs\Feedify\Resource
+ */
+class AdminUser extends AbstractElement {
+
+    /** @var string|null */
+    protected $_email;
+
+    /** @var array[]|null */
+    protected $_roleList;
+
+    /**
+     * @param Params $data
+     */
+    public function __construct(Params $data) {
+        parent::__construct($data);
+        $this->_email = ($data->has('email')) ? $data->getString('email') : null;
+        $this->_roleList = ($data->has('roleList')) ? $data->getArray('roleList') : null;
+    }
+
+    /**
+     * @return string
+     */
+    public function getEmail() {
+        if (null === $this->_email) {
+            $this->_load();
+        }
+        return $this->_email;
+    }
+
+    /**
+     * @return array[]
+     */
+    public function getRoleLIst() {
+        if (null === $this->_roleList) {
+            $this->_load();
+        }
+        return $this->_roleList;
+    }
+
+    public function delete() {
+        // todo: add delete
+    }
+
+    protected function _load() {
+        // todo: get userAdmin infos over API
+        $data = new Params([
+            'email'       => 'test@example.com',
+            'roleList'    => [['id' => 1, 'name' => 'superAdmin'], ['id' => 2, 'name' => 'admin']],
+            'createStamp' => time(),
+        ]);
+        // //////////////////////////////////////
+
+        $this->_email = $data->getString('email');
+        $this->_roleList = $data->getArray('roleList');
+        $this->_createStamp = $data->getInt('createStamp');
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/AdminUserList.php b/source/Feedlabs/Feedify/Resource/AdminUserList.php
new file mode 100644
index 0000000..52fe5c8
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/AdminUserList.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class AdminUserList
+ * @package Feedlabs\Feedify\Resource
+ */
+class AdminUserList extends AbstractList {
+
+    protected function _processItem($item) {
+        return new AdminUser(new Params($item));
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/Application.php b/source/Feedlabs/Feedify/Resource/Application.php
new file mode 100644
index 0000000..b15b956
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/Application.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Client;
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class Application
+ * @package Feedlabs\Feedify\Resource
+ */
+class Application extends AbstractElement {
+
+    /** @var string */
+    protected $_name;
+
+    /** @var string */
+    protected $_description;
+
+    /** @var FeedList */
+    protected $_feedList;
+
+    /**
+     * @param Params $data
+     */
+    public function __construct(Params $data) {
+        parent::__construct($data);
+        $this->_name = ($data->has('name')) ? $data->getString('name') : null;
+        $this->_description = ($data->has('description')) ? $data->getString('description') : null;
+        $this->_feedList = ($data->has('feedList')) ? $data->get('feedList') : null;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName() {
+        if (null === $this->_name) {
+            $this->_load();
+        }
+        return $this->_name;
+    }
+
+    /**
+     * @return string|null
+     */
+    public function getDescription() {
+        if (null === $this->_description) {
+            $this->_load();
+        }
+        return $this->_description;
+    }
+
+    public function getFeedList() {
+        if (null === $this->_feedList) {
+            // todo: load over API
+            $feedList = [];
+            for ($i = 0; $i < 3; $i++) {
+                $feedList[] = [
+                    'id'          => 'id' . $i,
+                    'name'        => 'Name-' . $i,
+                    'description' => 'description-' . $i,
+                    'channel'     => 'channel' . $i,
+                    'createStamp' => time(),
+                ];
+            }
+            // //////////////////////////////////////
+            $this->_feedList = new FeedList($feedList);
+        }
+
+        return $this->_feedList;
+    }
+
+    public function delete() {
+        // todo: add delete
+    }
+
+    protected function _load() {
+        // todo: get application infos over API
+        $data = new Params([
+            'name'        => 'Name-ABC123',
+            'description' => 'description-ABC123',
+            'createStamp' => time(),
+        ]);
+        // //////////////////////////////////////
+
+        $this->_name = $data->getString('name');
+        $this->_description = $data->getString('description');
+        $this->_createStamp = $data->getInt('createStamp');
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/ApplicationList.php b/source/Feedlabs/Feedify/Resource/ApplicationList.php
new file mode 100644
index 0000000..eb5a640
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/ApplicationList.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class ApplicationList
+ * @package Feedlabs\Feedify\Resource
+ */
+class ApplicationList extends AbstractList {
+
+    protected function _processItem($item) {
+        return new Application(new Params($item));
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/Entry.php b/source/Feedlabs/Feedify/Resource/Entry.php
index 1f169a5..00dfb73 100644
--- a/source/Feedlabs/Feedify/Resource/Entry.php
+++ b/source/Feedlabs/Feedify/Resource/Entry.php
@@ -4,36 +4,44 @@
 
 use Feedlabs\Feedify\Client;
 use Feedlabs\Feedify\Request;
+use Feedlabs\Feedify\Params;
 
 /**
  * Class Entry
  * @package Feedlabs\Feedify\Resource
  */
-class Entry extends AbstractResource {
+class Entry extends AbstractElement {
 
-    /** @var array */
+    /** @var string */
     protected $_data;
 
     /**
-     * @param string $id
-     * @param array  $data
+     * @param Params $data
      */
-    public function __construct($id, array $data) {
-        parent::__construct($id);
-        $this->_data = $data;
+    public function __construct(Params $data) {
+        parent::__construct($data);
+        $this->_data = ($data->has('data')) ? $data->getString('data') : null;
     }
 
     /**
-     * @return array
+     * @return string
      */
     public function getData() {
+        if (null === $this->_data) {
+            $this->_load();
+        }
         return $this->_data;
     }
 
-    /**
-     * @return Request
-     */
-    protected function _getRequest() {
-        return Client::getRequest();
+    protected function _load() {
+        // todo: get feed infos over API
+        $data = new Params([
+            'data'        => 'description123',
+            'createStamp' => time(),
+        ]);
+        // //////////////////////////////////////
+
+        $this->_data = $data->getString('data');
+        $this->_createStamp = $data->getInt('createStamp');
     }
 }
diff --git a/source/Feedlabs/Feedify/Resource/EntryList.php b/source/Feedlabs/Feedify/Resource/EntryList.php
new file mode 100644
index 0000000..a71a67e
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/EntryList.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class EntryList
+ * @package Feedlabs\Feedify\Resource
+ */
+class EntryList extends AbstractList {
+
+    protected function _processItem($item) {
+        return new Entry(new Params($item));
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/Feed.php b/source/Feedlabs/Feedify/Resource/Feed.php
index e86760e..73c18e0 100644
--- a/source/Feedlabs/Feedify/Resource/Feed.php
+++ b/source/Feedlabs/Feedify/Resource/Feed.php
@@ -3,44 +3,98 @@
 namespace Feedlabs\Feedify\Resource;
 
 use Feedlabs\Feedify\Client;
-use Feedlabs\Feedify\Request;
+use Feedlabs\Feedify\Params;
 
 /**
  * Class Feed
  * @package Feedlabs\Feedify\Resource
  */
-class Feed extends AbstractResource {
+class Feed extends AbstractElement {
 
-    /** @var array */
-    protected $_data;
+    /** @var string */
+    protected $_name;
+
+    /** @var string */
+    protected $_channelId;
+
+    /** @var string */
+    protected $_description;
+
+    /** @var EntryList */
+    protected $_entryList;
 
     /**
-     * @param string $id
-     * @param array  $data
+     * @param Params $data
      */
-    public function __construct($id, array $data) {
-        parent::__construct($id);
-        $this->_data = $data;
+    public function __construct(Params $data) {
+        parent::__construct($data);
+        $this->_name = ($data->has('name')) ? $data->getString('name') : null;
+        $this->_description = ($data->has('description')) ? $data->getString('description') : null;
+        $this->_channelId = ($data->has('channelId')) ? $data->getString('channelId') : null;
+        $this->_entryList = ($data->has('entryList')) ? $data->get('entryList') : null;
     }
 
     /**
-     * @return array
+     * @return string
      */
-    public function getData() {
-        return $this->_data;
+    public function getName() {
+        if (null === $this->_name) {
+            $this->_load();
+        }
+        return $this->_name;
     }
 
     /**
-     * @return array
+     * @return string
      */
-    public function delete() {
-        return $this->_getRequest()->delete('/feed/' . $this->getId());
+    public function getDescription() {
+        if (null === $this->_description) {
+            $this->_load();
+        }
+        return $this->_description;
     }
 
     /**
-     * @return Request
+     * @return string
      */
-    protected function _getRequest() {
-        return Client::getRequest();
+    public function getChannelId() {
+        if (null === $this->_channelId) {
+            $this->_load();
+        }
+        return $this->_channelId;
+    }
+
+    public function getEntryList() {
+        if (null === $this->_entryList) {
+            // todo: load over API
+            $entryList = [];
+            for ($i = 0; $i < 3; $i++) {
+                $entryList[] = ['id' => 'id' . $i, 'data' => 'Data-' . $i, 'createStamp' => time()];
+            }
+            // //////////////////////////////////////
+            $this->_entryList = new EntryList($entryList);
+        }
+
+        return $this->_entryList;
+    }
+
+    public function delete() {
+        // todo: add delete
+    }
+
+    protected function _load() {
+        // todo: get feed infos over API
+        $data = new Params([
+            'name'        => 'Feed123',
+            'description' => 'description123',
+            'channelId'   => 'channelId-123',
+            'createStamp' => time(),
+        ]);
+        // //////////////////////////////////////
+
+        $this->_name = $data->getString('name');
+        $this->_description = $data->getString('description');
+        $this->_channelId = $data->getString('channelId');
+        $this->_createStamp = $data->getInt('createStamp');
     }
 }
diff --git a/source/Feedlabs/Feedify/Resource/FeedList.php b/source/Feedlabs/Feedify/Resource/FeedList.php
new file mode 100644
index 0000000..429974a
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/FeedList.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class FeedList
+ * @package Feedlabs\Feedify\Resource
+ */
+class FeedList extends AbstractList {
+
+    protected function _processItem($item) {
+        return new Feed(new Params($item));
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/Token.php b/source/Feedlabs/Feedify/Resource/Token.php
new file mode 100644
index 0000000..d2099cc
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/Token.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Client;
+use Feedlabs\Feedify\Request;
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class Token
+ * @package Feedlabs\Feedify\Resource
+ */
+class Token {
+
+    /** @var string */
+    protected $_token;
+
+    /** @var string */
+    protected $_name;
+
+    /** @var int */
+    protected $_createStamp;
+
+    /**
+     * @param Params $data
+     */
+    public function __construct(Params $data) {
+        $this->_token = $data->getString('token');
+        $this->_name = $data->getString('name');
+        $this->_createStamp = $data->getInt('createStamp');
+    }
+
+    /**
+     * @return string|null
+     */
+    public function getToken() {
+        return $this->_token;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName() {
+        return $this->_name;
+    }
+
+    /**
+     * @return int
+     */
+    public function getCreated() {
+        return $this->_createStamp;
+    }
+
+    /**
+     * @return array
+     */
+    public function delete() {
+        // todo: add delete
+    }
+
+    /**
+     * @return Request
+     */
+    protected function _getRequest() {
+        return Client::getRequest();
+    }
+}
diff --git a/source/Feedlabs/Feedify/Resource/TokenList.php b/source/Feedlabs/Feedify/Resource/TokenList.php
new file mode 100644
index 0000000..17cc516
--- /dev/null
+++ b/source/Feedlabs/Feedify/Resource/TokenList.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Feedlabs\Feedify\Resource;
+
+use Feedlabs\Feedify\Params;
+
+/**
+ * Class TokenList
+ * @package Feedlabs\Feedify\Resource
+ */
+class TokenList extends AbstractList {
+
+    protected function _processItem($item) {
+        return new Token(new Params($item));
+    }
+}
diff --git a/tests/source/Feedlabs/Tests/Feedify/ClientTest.php b/tests/source/Feedlabs/Tests/Feedify/ClientTest.php
index c7fa5aa..01255b0 100644
--- a/tests/source/Feedlabs/Tests/Feedify/ClientTest.php
+++ b/tests/source/Feedlabs/Tests/Feedify/ClientTest.php
@@ -27,21 +27,6 @@ public function testGetFeed() {
         $this->assertSame($data, $feed->getData());
     }
 
-    public function testGetFeedList() {
-    }
-
-    public function testCreateFeed() {
-    }
-
-    public function testUpdateFeed() {
-    }
-
-    public function testDeleteFeed() {
-    }
-
-    public function testCreateEntry() {
-    }
-
     public function testGetRequest() {
         $id = 'foo123';
         $token = 'bar123';
diff --git a/tests/source/Feedlabs/Tests/Feedify/RequestTest.php b/tests/source/Feedlabs/Tests/Feedify/RequestTest.php
index 1f179ca..4bc7df6 100644
--- a/tests/source/Feedlabs/Tests/Feedify/RequestTest.php
+++ b/tests/source/Feedlabs/Tests/Feedify/RequestTest.php
@@ -8,9 +8,7 @@
 class RequestTest extends TestCase {
 
     public function testConstruct() {
-        $request = new Request('foo', 'bar');
-
-        $this->assertSame('foo', $request->getApiId());
+        $request = new Request('bar');
         $this->assertSame('bar', $request->getApiToken());
     }
 
@@ -29,6 +27,6 @@ public function testPost() {
 
         $expected = ['id' => '111'];
         /** @var Request $request */
-        $this->assertSame($expected, $request->get('www.example.com'));
+        $this->assertSame($expected, $request->post('www.example.com', $expected));
     }
 }