Sei Perpetual · SEI
Trade the SEI perpetual on Lighter DEX — zero-fee, USDC-margined, up to 10x leverage on a fully verifiable ZK order book.
Live SEI candles from Lighter's public API. For trading, verify on app.lighter.xyz.
About Sei (SEI)
Sei (SEI) is a trading-optimized layer-1 with a built-in order book. Trade the SEI perp zero-fee on Lighter.
Trading Sei Perpetuals on Lighter
On Lighter, Sei trades as the SEI perpetual — no expiry, with collateral and PnL settled in USDC. Standard accounts pay 0% maker and taker fees, and Lighter offers up to 10x leverage on this market. Every fill is matched on a fully verifiable ZK order book, so matching and liquidations are proven rather than trusted — see what Lighter DEX is for how that works.
How is the SEI perp different from owning Sei?
Buying Sei spot means holding the asset, with custody and self-storage as your problem and your upside limited to price appreciation. The SEI perpetual is a different trade: you post USDC as margin, you take the price exposure without ever holding SEI, and you can go short as easily as long. There is no expiry to roll, which is what makes it perpetual, and funding payments between longs and shorts are what keep the contract tethered to spot. The trade-off is that leverage cuts both ways and a position can be liquidated, which never happens to spot you actually own.
What should you know before trading SEI?
The numbers that decide whether a SEI position survives are the margin ones, not the fee ones. Trading is free at 0% maker and 0% taker on a standard account, so the cost of being wrong is entirely margin and funding. 10x is this market's ceiling, which means you post at least 10.0% of notional as initial margin; go to the ceiling and a move of roughly that size against you wipes the position. Liquidation carries a 1% fee on top of the forced exit, so planning your own exit is materially cheaper than being closed out. The minimum order is $10 of notional, which makes it cheap to size a first position small.
SEI perps on Lighter are zero-fee for standard accounts, USDC-margined, and matched on a verifiable ZK order book with up to 10x leverage. Sign up with referral code LIGHTERPEDIA to attach the code at sign-up.
How to Trade Sei on Lighter in 4 Steps
- 1Connect a wallet — open app.lighter.xyz and connect MetaMask, Rabby, or any Web3 wallet. No KYC required.
- 2Deposit USDC — fund your account with USDC to use as margin collateral. See our getting-started guide.
- 3Open the SEI market — select Sei, choose your leverage (up to 10x on this market), and set your margin mode.
- 4Place your order — market or limit, all zero-fee for standard accounts. Manage risk with stop-loss and take-profit.
Sei Perpetual — Contract Specs
| Market | SEI (Perpetual) |
|---|---|
| Margin asset | USDC |
| Maker / taker fee | 0% / 0% (standard account) |
| Max leverage | 10x (10.0% initial margin) |
| Minimum order | $10 notional |
| Liquidation fee | 1% of position value |
| Order matching | Verifiable ZK order book, settles to Ethereum |
| Settlement | Settled in USDC |
| Sign-up bonus | One-week Premium fee rebate with code LIGHTERPEDIA |
Frequently Asked Questions
What does it cost to trade the Sei perpetual on Lighter?
Standard accounts on Lighter trade the SEI perpetual at 0% maker and 0% taker fees — it is a zero-fee market. Premium tiers with LIT staked can unlock rebated rates. You still pay network gas on deposits and withdrawals.
What is the maximum leverage for Sei on Lighter?
The SEI market caps out at 10x. That is a per-market limit rather than a platform-wide one: only BTC and ETH reach Lighter's 50x maximum, most alts sit between 10x and 25x, and the pre-IPO markets are capped at 5x because they are internally priced with no price caps. Collateral is USDC either way, and 10x means an initial margin requirement of 10.0% of notional.
Is the Sei market on Lighter verifiable?
Yes. Lighter is a fully verifiable ZK order-book DEX — order matching and liquidations are proven with zero-knowledge proofs and settle to Ethereum, so the SEI market is trust-minimized rather than relying on an opaque matching engine.
Do I need KYC to trade Sei on Lighter?
No. Lighter is a self-custody DEX — connect a Web3 wallet and trade directly, with no identity verification required. Signing up with referral code LIGHTERPEDIA attaches the code at account creation; see /referral for what Lighter documents that it does.
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Ready to trade Sei on Lighter?
Trade the SEI perpetual zero-fee on a standard account, USDC-margined, up to 10x leverage on a verifiable ZK order book. Code LIGHTERPEDIA is applied automatically through the link.
Trade SEI on Lighter