Rails stands out as the first fully self-custodial yield-generation service built specifically for the Lightning Network. Users can act as Liquidity Providers (LPs) while maintaining full control over their funds, contributing at the same time to improving the performance and scalability of the Lightning Network. The service leverages Amboss’ AI infrastructure to optimize the speed, reliability, and capacity of Lightning transactions.

Rails’ yield-generation mechanism is based on two main activities: -Payment routing: users earn fees by facilitating payment routing through the Lightning Network; -Liquidity leasing: by providing liquidity to other participants in the LN network. Although returns are not guaranteed, the performance demonstrated by companies like Block is notable. During the Bitcoin 2025 conference in Las Vegas, Miles Suter of Block revealed that their routing node is generating a 9.7% APR on deposited bitcoin while maintaining control over private keys.

Rails offers two distinct services: Rails LP: designed for businesses with bitcoin treasuries, custodians, and high-net-worth individuals, with a minimum commitment of 1 BTC for one year; Liquidity subscriptions: aimed at businesses accepting bitcoin payments, with fees starting from 0.5%.