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An interface is Lerian’s integration to a payment product. It gives you the API, the ledger integration, and the operational controls for that product. The national payment system is different from a Lerian rail. SPI is the Pix system and SPB carries TED. A Lerian rail is software for native messaging, and it can connect an institution to one of those systems. This tab documents the interfaces that reach payment products through a configured provider or a Lerian rail. Lerian offers seven interfaces:

What runs in production today


Pix runs in production through two interfaces. The JD interface connects your institution as a direct participant through a certified PSTI. The BTG interface connects you as an indirect participant. TED runs through JD. Pix Lerian is the interface that connects Midaz to Lerian SPI, Lerian’s own Pix messaging.