Auto top-up from USDC
Keep a fiat balance above a floor without watching it.
Set a rule: watch a balance, a threshold, and how much USDC to convert when it drops below.
When the rule fires, the conversion posts to both ledgers exactly like a manual conversion, so nothing about your statements changes shape.
It is useful when a card or a subscription spends from a fiat balance and you hold working capital in stablecoin.
Turning the rule off stops it immediately; it never runs retroactively.