SWIFTNet Link (SNL) is an application programming interface that offers access to all SWIFTNet services. Business applications can use SNL with SWIFT FIN interface products such as SWIFT Alliance Access to connect to and use the SWIFTNet FIN services. Applications can use SNL directly, or with an interface product such as the SWIFT Alliance Gateway (SAG), to enable application-to-application communication over the SWIFTNet services.

SNL functionality includes messaging, security, and service management. The security and service management functions are beyond the scope of this guide and are not discussed here.