ERC-3156 flash loans. Borrow within one transaction and repay + 0.05% fee. Liquidity providers earn 80% of the fee; 20% goes to the platform. Currently launch-stage — liquidity is thin until LPs deposit.
To take a flash loan, your contract implements IERC3156FlashBorrower.onFlashLoan and calls flashLoan(receiver, token, amount, data). ABI available at /svc/api/batchb/info.