diff --git a/com_oauthserver/site/src/Repository/AccessTokenRepository.php b/com_oauthserver/site/src/Repository/AccessTokenRepository.php
new file mode 100644
index 0000000..656a654
--- /dev/null
+++ b/com_oauthserver/site/src/Repository/AccessTokenRepository.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Webmasterskaya\Component\OauthServer\Site\Repository;
+
+use Joomla\CMS\MVC\Factory\MVCFactoryAwareTrait;
+use League\OAuth2\Server\Entities\AccessTokenEntityInterface;
+use League\OAuth2\Server\Entities\ClientEntityInterface;
+use League\OAuth2\Server\Entities\Traits\AccessTokenTrait;
+use League\OAuth2\Server\Entities\Traits\EntityTrait;
+use League\OAuth2\Server\Entities\Traits\TokenEntityTrait;
+use League\OAuth2\Server\Repositories\AccessTokenRepositoryInterface;
+
+class AccessTokenRepository implements AccessTokenRepositoryInterface
+{
+    use AccessTokenTrait;
+    use EntityTrait;
+    use TokenEntityTrait;
+
+    use MVCFactoryAwareTrait;
+
+    public function getNewToken(ClientEntityInterface $clientEntity, array $scopes, $userIdentifier = null)
+    {
+        // TODO: Implement getNewToken() method.
+    }
+
+    public function persistNewAccessToken(AccessTokenEntityInterface $accessTokenEntity)
+    {
+        // TODO: Implement persistNewAccessToken() method.
+    }
+
+    public function revokeAccessToken($tokenId)
+    {
+        // TODO: Implement revokeAccessToken() method.
+    }
+
+    public function isAccessTokenRevoked($tokenId)
+    {
+        // TODO: Implement isAccessTokenRevoked() method.
+    }
+}
\ No newline at end of file
diff --git a/com_oauthserver/site/src/Repository/AuthCodeRepository.php b/com_oauthserver/site/src/Repository/AuthCodeRepository.php
new file mode 100644
index 0000000..92aeba0
--- /dev/null
+++ b/com_oauthserver/site/src/Repository/AuthCodeRepository.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Webmasterskaya\Component\OauthServer\Site\Repository;
+
+use League\OAuth2\Server\Entities\AuthCodeEntityInterface;
+use League\OAuth2\Server\Repositories\AuthCodeRepositoryInterface;
+
+class AuthCodeRepository implements AuthCodeRepositoryInterface
+{
+
+    public function getNewAuthCode()
+    {
+        // TODO: Implement getNewAuthCode() method.
+    }
+
+    public function persistNewAuthCode(AuthCodeEntityInterface $authCodeEntity)
+    {
+        // TODO: Implement persistNewAuthCode() method.
+    }
+
+    public function revokeAuthCode($codeId)
+    {
+        // TODO: Implement revokeAuthCode() method.
+    }
+
+    public function isAuthCodeRevoked($codeId)
+    {
+        // TODO: Implement isAuthCodeRevoked() method.
+    }
+}
\ No newline at end of file
diff --git a/com_oauthserver/site/src/Repository/ClientRepository.php b/com_oauthserver/site/src/Repository/ClientRepository.php
new file mode 100644
index 0000000..74d4a0a
--- /dev/null
+++ b/com_oauthserver/site/src/Repository/ClientRepository.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Webmasterskaya\Component\OauthServer\Site\Repository;
+
+use Joomla\CMS\MVC\Factory\MVCFactoryAwareTrait;
+use Joomla\CMS\MVC\Factory\MVCFactoryInterface;
+use League\OAuth2\Server\Entities\ClientEntityInterface;
+use League\OAuth2\Server\Repositories\ClientRepositoryInterface;
+
+class ClientRepository implements ClientRepositoryInterface
+{
+    use MVCFactoryAwareTrait;
+
+    public function __construct(MVCFactoryInterface $MVCFactory)
+    {
+        $this->setMVCFactory($MVCFactory);
+    }
+
+    /**
+     * @param $clientIdentifier
+     * @return \League\OAuth2\Server\Entities\ClientEntityInterface
+     * @throws \Exception
+     * @since version
+     */
+    public function getClientEntity($clientIdentifier): ClientEntityInterface
+    {
+        /** @var \Webmasterskaya\Component\OauthServer\Administrator\Table\ClientTable $table */
+        $table = $this->getMVCFactory()->createTable('Client', 'Administrator');
+        $table->load(['identifier' => $clientIdentifier]);
+        return $table;
+    }
+
+    public function validateClient($clientIdentifier, $clientSecret, $grantType)
+    {
+        // TODO: Implement validateClient() method.
+    }
+}
\ No newline at end of file
diff --git a/com_oauthserver/site/src/Repository/RefreshTokenRepository.php b/com_oauthserver/site/src/Repository/RefreshTokenRepository.php
new file mode 100644
index 0000000..31ec9e3
--- /dev/null
+++ b/com_oauthserver/site/src/Repository/RefreshTokenRepository.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Webmasterskaya\Component\OauthServer\Site\Repository;
+
+use League\OAuth2\Server\Entities\RefreshTokenEntityInterface;
+use League\OAuth2\Server\Repositories\RefreshTokenRepositoryInterface;
+
+class RefreshTokenRepository implements RefreshTokenRepositoryInterface
+{
+
+    public function getNewRefreshToken()
+    {
+        // TODO: Implement getNewRefreshToken() method.
+    }
+
+    public function persistNewRefreshToken(RefreshTokenEntityInterface $refreshTokenEntity)
+    {
+        // TODO: Implement persistNewRefreshToken() method.
+    }
+
+    public function revokeRefreshToken($tokenId)
+    {
+        // TODO: Implement revokeRefreshToken() method.
+    }
+
+    public function isRefreshTokenRevoked($tokenId)
+    {
+        // TODO: Implement isRefreshTokenRevoked() method.
+    }
+}
\ No newline at end of file
diff --git a/com_oauthserver/site/src/Repository/ScopeRepository.php b/com_oauthserver/site/src/Repository/ScopeRepository.php
new file mode 100644
index 0000000..a606365
--- /dev/null
+++ b/com_oauthserver/site/src/Repository/ScopeRepository.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Webmasterskaya\Component\OauthServer\Site\Repository;
+
+use League\OAuth2\Server\Entities\ClientEntityInterface;
+use League\OAuth2\Server\Repositories\ScopeRepositoryInterface;
+
+class ScopeRepository implements ScopeRepositoryInterface
+{
+
+    public function getScopeEntityByIdentifier($identifier)
+    {
+        // TODO: Implement getScopeEntityByIdentifier() method.
+    }
+
+    public function finalizeScopes(array $scopes, $grantType, ClientEntityInterface $clientEntity, $userIdentifier = null)
+    {
+        // TODO: Implement finalizeScopes() method.
+    }
+}
\ No newline at end of file