Suggests

• defuse/php-encryption: ^2 If you want to encrypt gateways credentials in database
• doctrine/mongodb-odm: ~2.0 If you want to store models to mongo doctrin2 ODM
• doctrine/orm: ~2.3 If you want to store models to database using doctrin2 ORM
• laminas/laminas-db: ~2.0 If you want to store models to Laminas Db ORM
• monolog/monolog: ~1.0 If you want to use PSR-3 logger
• payum/authorize-net-aim: self.version If you want to use Authorize.Net AIM payment gateway
• payum/be2bill: self.version If you want to use be2bill payment gateway
• payum/omnipay-v3-bridge: ^1 If you want to use omnipay's gateways
• payum/payex: self.version If you want to use payex payment gateway
• payum/paypal-express-checkout-nvp: self.version If you want to use paypal express checkout, digital goods or recurring payments
• payum/paypal-ipn: self.version If you want to use paypal instant payment notifications(Paypal IPN)
• payum/paypal-pro-checkout-nvp: self.version If you want to use paypal pro checkout
• payum/paypal-rest: self.version If you want to use paypal rest gateway
• propel/propel: If you want to store models to Propel2 ORM
• propel/propel1: ~1.7 If you want to store models to Propel1 ORM
• symfony/dependency-injection: ~2.8|~3.0 If you want to use container aware stuff
• symfony/form: ~2.8|~3.0 If you want to use forms
• symfony/http-foundation: ~2.8|~3.0 If you want to use HttpRequestVerifier or HttpResponse reply from symfony's bridge
• symfony/http-kernel: ~2.8|~3.0 If you want to use HttpRequestVerifier from symfony's bridge
• symfony/routing: ~2.8|~3.0 If you want to use TokenFactory from symfony's bridge