Permissionless listing is the whole product. If an asset has a price feed, a market can exist here without asking anyone, and for traders who want exposure that centralised venues will never provide, that is a real capability. It is also, structurally, the same feature that makes the venue risky.
The Oyster AMM
SynFutures v3 uses a concentrated-liquidity AMM adapted for derivatives, so liquidity providers can deploy capital in a price range rather than across an entire curve. That produces usable depth on markets far too small to support an order book, and it lets a single provider bootstrap a market alone. Fees run roughly 0.03% to 0.1% depending on the pool.
Where the risk lives
A thin market with an oracle is a manipulation target: push the underlying price on a small external venue, and liquidations follow on-chain. This is not hypothetical — it is the mechanism behind several of the most costly incidents in on-chain derivatives, including the JELLY episode at Hyperliquid. On SynFutures the exposure is contained to the specific market rather than a shared vault, which limits contagion but does not protect the traders and providers in that pool.
Protocol record
No exploit of the core contracts, audits in place, and the isolation of markets is a deliberate and correct design choice. Liquidity outside a small number of pairs is minimal, so the practical universe of tradable markets is much smaller than the listing count implies.
Who should use SynFutures
Experienced traders who want a specific exposure unavailable elsewhere and who will check pool depth and the oracle source before entering. Anyone providing liquidity to a long-tail market should assume it can be attacked. For mainstream pairs, deeper venues are better in every respect.