MantisSwap Review: Is Its Beta DEX Worth Using?

MantisSwap is a decentralized automated market maker designed for trading assets that are meant to hold similar values, such as pegged assets. Its multi-asset pool design aims to make liquidity more useful across tokens and reduce slippage on swaps. Those are design goals, not guarantees: actual execution depends on the pool, trade size and market conditions.

If you provide liquidity, MantisSwap says you can deposit one asset rather than supplying a pair. The project says you can claim deposited assets 1:1 on withdrawal, but that statement should not be treated as protection from a token depeg, contract failure or other loss. It also offers LP-token staking for rewards. The materials refer to the native token as both MNTS and MNT, so confirm exactly which token is used for rewards and boosted APR before committing funds.

MantisSwap describes swap fees as minimal, but does not publish exact fee amounts in the project details here. That makes it difficult to compare the cost of a trade with another DEX in advance. Check the quote and any fee shown in the app before confirming each swap; the displayed rate and the amount you receive matter more than a general claim of low costs.

You will also pay network gas for transactions. Gas is separate from a protocol’s trading fee and varies by chain and network conditions. Providing or removing liquidity, staking LP tokens, and claiming rewards can each require additional transactions and gas. The project does not publish enough detail here to calculate those costs or estimate reward returns. Treat any APR shown in the app as variable, and check how rewards are earned and whether unstaking or withdrawal has conditions before you proceed.

MantisSwap says it has an autonomous loss-protection mechanism intended to reduce losses during a depeg or exploit. That is a risk-reduction claim, not a guarantee that deposits will be made whole. Liquidity providers still face smart-contract risk, token depeg risk and the possibility that a pool cannot return the assets you expect under stressed conditions.

Two audits are listed for the project, but their names, dates, contracts covered and findings are not established here. Do not treat the count alone as proof that the current app or every supported chain has been reviewed. Confirm which contracts are covered and whether any issues remain unresolved before depositing. MantisSwap is described as being in beta, which adds uncertainty. The project’s materials do not establish a licence or a named team, so you should not assume either. Use only funds you can afford to lose.

MantisSwap is listed on Mode, Polygon and Polygon zkEVM. Before connecting, make sure your wallet is on the network selected in the app and that the token address and pool are the ones you intend to use. A transaction on one chain does not automatically move funds to another.

The project presents the app as a beta and offers swap, pool and staking functions. A search listing for its testnet says mobile support was under development, but that may not describe the current main app; check whether the app works as expected on your device before sending funds. As with other wallet-based DEXs, you remain responsible for reviewing token approvals and transaction details. Start with a small amount, verify the result, and avoid approving unlimited access when a smaller allowance is available.

The biggest drawbacks are the beta status and limited clarity about costs and security evidence. Exact swap fees are not published in the project details here, and the two listed audits lack enough detail to judge their coverage or results. The project also does not establish licensing or a named team. These gaps make it harder to assess the protocol than a DEX with clear fee schedules and accessible audit reports.

The single-sided design may be convenient, but it does not remove the usual risks of supplying liquidity. The assets are intended to stay near similar values, and a depeg can change pool balances and harm liquidity providers. The loss-protection mechanism may help, but the project does not establish what it covers or how claims work. If you need predictable returns, guaranteed withdrawals or fully documented protections, choose a different product.