What is Twin-Turbo Consensus?

Sei's Twin-Turbo Consensus combines an optimistic block processing mechanism with intelligent block propagation to achieve sub-400ms finality — faster than any other production Layer-1 blockchain.

Can I swap SEI without KYC?

Yes. SyntheticSwap supports SEI swaps with no registration or identity verification.

What is the native order book on Sei?

Sei provides a native central limit order book (CLOB) at the protocol level, meaning every app on Sei can plug into shared order book infrastructure without deploying their own matching engine.

Is Sei EVM compatible?

Yes. Sei V2 introduced full EVM compatibility with parallelized execution, allowing Ethereum Solidity contracts to deploy on Sei without modification.

Who received the SEI airdrop?

SEI was distributed to testnet participants, ecosystem users, and NFT holders across Cosmos and Ethereum communities during the 2023 mainnet launch.

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Sei

The Fastest Layer 1 Blockchain for Trading

Launch Year

2023

Consensus

Proof of Stake (Twin-Turbo Consensus)

Max Supply

10,000,000,000 SEI

Block Time

~0.4 seconds

SEI

Sei

Price—

24h Change—

Market Cap—

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Swap SEI Now

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Non-custodial — your keys, your crypto
1000+ supported exchange pairs
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Sei Price Chart

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About Sei

Sei (SEI) is a Layer-1 blockchain specifically optimized for trading and DeFi, using a novel Twin-Turbo Consensus mechanism to achieve 400ms finality — the fastest among production Layer-1 blockchains. Sei is built on the Cosmos SDK and provides native order book matching at the base layer, meaning every application on Sei can access a shared central limit order book without deploying separate AMM contracts. SEI V2 added full EVM compatibility, making Sei accessible to both Cosmos and Ethereum developers. SEI is the native staking and fee token. The protocol is designed to handle the high-frequency, low-latency demands of professional trading applications.

History

2022

Sei Labs founded by Jeff Feng and Jayendra Jog to build the fastest Layer 1 for trading.

2023

Sei mainnet launches in August 2023 after a massive testnet with millions of participants.

2023

SEI token distributed via airdrop to testnet participants; lists on major exchanges including Binance.

2024

Sei V2 launches with EVM compatibility, parallelized execution, and sub-400ms finality.

2024

Sei becomes a top-10 Cosmos chain by TVL; DeFi protocols and gaming apps deploy on the network.

How to Swap SEI

Swapping Sei (SEI) on SyntheticSwap is simple and requires no registration or KYC. Connect your personal crypto wallet, select SEI as your source or destination asset, enter your receiving wallet address, and confirm the live exchange rate. Once you send SEI to the deposit address provided, SyntheticSwap processes the exchange automatically and delivers the destination asset directly to your wallet. No personal information is collected — fully non-custodial from start to finish.

How to Store SEI

SEI (native) is stored in Sei-compatible wallets: Compass Wallet (official Sei wallet), Fin Wallet, or Keplr with Sei network added. For EVM addresses on Sei V2, MetaMask works natively. Ledger hardware wallets support SEI. Sei uses both Cosmos (sei1...) and EVM (0x...) addresses which map to the same account.