Lightning Swap:
...
-- compatible with the FixedFloat API.

Swap USDT, USDC, Solana and Ethereum to Bitcoin Lightning | Megalith Lightning Docs
How merchants can let customers pay with USDT, USDC, SOL, or ETH and still settle in sats on the Lightning Network using Lightning Swap.

Lightning Swap
Pay Lightning invoices with USDC, USDT & more — Lightning Swap
Instantly pay a Lightning invoice with USDC, USDT, Solana, or Ethereum. Fixed-rate coin to Lightning swaps — market rate plus 1.1%.

