Для Яндекса еще проще

1. Идем сюда: oauth.yandex.ru/client/new

Название: mysite.com Яндекс.Логин: выбираем все Callback URI: http://mysite.com/assets/components/modhybridauth/connectors/profile/auth.php?hauth.done=Yandex Жмем "Создать" Получили:

2. Идем в phpMyAdmin и в таблице modx_modhybridauth_providers копируем запись Google. Ставим в поле id значение 4, в поле name Google заменяем на Yandex, в поле keys в id подставляем Id приложения, в secret — Пароль приложения.
3. Открываем Modx SDK и в ShopModxBox-1.1.0-beta -> Media Sources -> modHybridAuth core -> model -> modhybridauth -> Hybrid -> щелкаем правой кнопкой мышки на папке Providers -> «Быстро создать файл» Имя: Yandex.php Содержимое:

<?>
/*!
* HybridAuth
* http://hybridauth.sourceforge.net | http://github.com/hybridauth/hybridauth
* © 2009-2012, HybridAuth authors | http://hybridauth.sourceforge.net/licenses.html
*
* Provider writed by xbreaker | https://github.com/xbreaker/hybridauth
*/

/**
* Hybrid_Providers_Yandex provider adapter based on OAuth2 protocol
*
*/
class Hybrid_Providers_Yandex extends Hybrid_Provider_Model_OAuth2
{
/**
* IDp wrappers initializer
*/
function initialize()
{
parent::initialize();

// Provider apis end-points
$this->api->api_base_url = "https://login.yandex.ru/info";
$this->api->authorize_url = "https://oauth.yandex.ru/authorize";
$this->api->token_url = "https://oauth.yandex.ru/token";

$this->api->sign_token_name = "oauth_token";
}

/**
* load the user profile from the IDp api client
*/
function getUserProfile()
{
$response = $this->api->api( "?format=json" );
if ( ! isset( $response->id ) ){
throw new Exception( "User profile request failed! {$this->providerId} returned an invalide response.", 6 );
}
    
    $this->user->profile->identifier = (property_exists($response,'id'))?$response->id:"";
$this->user->profile->firstName = (property_exists($response,'real_name'))?$response->real_name:"";
$this->user->profile->lastName = (property_exists($response,'family_name'))?$response->family_name:"";
$this->user->profile->displayName = (property_exists($response,'display_name'))?$response->display_name:"";
$this->user->profile->photoURL = 'http://upics.yandex.net/'. $this->user->profile->identifier .'/normal';
$this->user->profile->profileURL = "";
$this->user->profile->gender = (property_exists($response,'sex'))?$response->sex:"";
$this->user->profile->email = (property_exists($response,'default_email'))?$response->default_email:"";
$this->user->profile->emailVerified = (property_exists($response,'default_email'))?$response->default_email:"";

if( property_exists($response,'birthday') ){
list($birthday_year, $birthday_month, $birthday_day) = explode( '-', $response->birthday );

$this->user->profile->birthDay = (int) $birthday_day;
$this->user->profile->birthMonth = (int) $birthday_month;
$this->user->profile->birthYear = (int) $birthday_year;
}

return $this->user->profile;
}
}

4. Идем во вкладку «Элементы» и выбираем чанк dbt.lgnLoginTpl? Добавляем ссылку

<a href="[[++assets_url]]components/modhybridauth/connectors/profile/auth.php?provider=Yandex&redirect_id=104" alt="Yandex" title="Войти через Яндекс" class="social Yandex"></a>

5. На всякий случай я почистил кэш У меня без бубнов заработало