What it is

Mantle holds asset pools that anyone — human or machine — can borrow against for the span of a single transaction. The borrower takes the liquidity, does their work, and returns it before the transaction seals. Repayment is enforced by the chain itself: if the asset and its fee do not come back in full, the whole transaction reverts as if it never happened. Your deposit cannot leave, because the borrow and the return are bound together as one indivisible act.

How the fee is forged

Every flash-borrow leaves 0.09% behind, paid by the borrower at the moment of repayment. That fee accrues to the depositors who staked the liquidity that was wielded. Nothing is at risk between borrows — the asset rests sealed in the reservoir until the next caller draws on it. Idle capital becomes a toll on every passage through the molten layer.

What it feeds

Mantle is the source that makes Eruption possible — zero-capital exercise of options draws its working liquidity here and returns it in the same breath. But the reservoir is not walled in: any external caller can tap it for liquidations, arbitrage, or collateral swaps under the same rule.

• ▸Eruption — flash-exercise options with no capital of your own
• ▸Cascade — liquidators source liquidity to close positions over the edge
• ▸External arbitrage and collateral migration
• ▸Any contract that can borrow and repay atomically

Where it lives — and how to start

Mantle sits beneath the protocol as a standalone liquidity layer; deposit through the Mantle pool view and your asset begins earning the moment the first borrower draws on it. Withdraw whenever you choose — only the liquidity not mid-flight in an open transaction is ever in motion, and that motion lasts a single block. To borrow, point a contract at the pool, take what you need, and return it with the 0.09% fee before the transaction closes. The fire below is open to anyone who can repay it.