Redsys Integration

Unlike international gateways such as Stripe or Adyen, Redsys is not an all-in-one payment platform. It is specifically a payment processor that connects your merchant account with the Spanish banking network. This has both advantages and drawbacks: commission rates are typically lower because your acquiring bank negotiates rates directly with you, and acceptance rates for Spanish cards are higher. But the technical integration is more complex, documentation has historically been limited, and features like subscriptions or marketplace payments require manual implementation.

If you are an international company looking to sell in Spain, understanding Redsys is important because it is how most Spanish consumers pay online. While Stripe works in Spain, transactions routed through Redsys via a local bank often have higher acceptance rates and lower fees for Spanish-issued cards. For businesses primarily targeting the Spanish market, Redsys integration can significantly improve conversion rates and reduce payment processing costs compared to using only an international gateway.

The Redsys API has evolved significantly in recent years. The modern REST API replaces the classic redirect form system, enabling much more flexible integration. Card tokenization enables recurring charges without storing sensitive data. 3D Secure 2.0 with adaptive authentication reduces checkout friction. And Bizum integration as a payment method allows users to pay directly from their banking app with a single tap, achieving conversion rates above 90% with Spanish audiences.