What Mantle does

A Mantle pool lets anyone flash-borrow an asset as long as they repay within the same transaction, plus a fee. That fee goes straight to the pool's LPs. Unlike long-term lending, there's no risk of an insolvent borrower — if the repay-with-fee doesn't happen atomically, the whole tx reverts.

Why you'd LP

Your capital is never locked. Deposit today, withdraw tomorrow. Fees accrue per flash loan. If Mantle is the cheapest flash source for a given asset on Arbitrum, most zero-capital exercises route through it — meaning consistent fee flow whenever the options market is active.

How to supply

Open the Pools page → Mantle tab. Pick an asset, approve it, deposit. You receive mob<SYMBOL> shares representing your position; redeem any amount any time for the underlying.

• ▸Deposit any amount; share price starts at 1:1.
• ▸Each flash-loan fee mints into the pool, so share price grows monotonically.
• ▸Withdraw triggers a share-to-asset conversion at the current price.

Flash-loan routing

When Obsidian's Eruption needs a flash loan, it queries pools in this order:

• ▸1. Mantle (ours) — fee flows to our LPs. Cheapest when sufficient reserves exist.
• ▸2. Uniswap v3 flash swaps — borrow from any Uniswap pair. Fee = pool tier (0.01% / 0.05% / 0.3% / 1%).
• ▸3. AAVE v3 flash loans — deep liquidity fallback, flat 0.05% fee on Arbitrum.

Risk

Mantle pools hold a single asset — no impermanent loss, no counterparty risk, no duration mismatch. The only loss vector would be a smart-contract bug; contracts are immutable and the project will ship with full audits before mainnet.