SEI

Sei is a Layer 1 blockchain built to support high-frequency decentralized applications, particularly in DeFi and trading sectors. It offers a unique parallelized EVM (Ethereum Virtual Machine) architecture that delivers sub-second finality of approximately 400 milliseconds and throughput exceeding 200,000 transactions per second (TPS). This performance enables developers to build web3 applications with near-instant settlement and ultra-low transaction fees, making it suitable for use cases that require speed and scalability beyond typical Ethereum capabilities.

The platform is designed with a parallelization engine that optimizes transaction execution across multiple cores, combined with a consensus mechanism called Twin Turbo Consensus that supports fast block production and finality. Sei also features SeiDB, a state access layer optimized for high throughput, and supports seamless integration with standard EVM tooling such as Hardhat and Foundry. Developers can deploy smart contracts with up to 100x better performance compared to Ethereum, while also leveraging interoperability with Cosmos SDK and IBC (Inter-Blockchain Communication) protocols.

Sei targets developers building decentralized finance (DeFi) applications, trading platforms, and other web3 apps that demand high throughput and low latency. It supports token standards including SEI native tokens, ERC-20, ERC-721, and IBC assets, and offers extensive developer resources including RPC endpoints, block explorers, wallet integrations, and AI tooling frameworks. The upcoming Sei Giga upgrade promises to further enhance gas execution bandwidth and scalability. Getting started involves setting up wallets compatible with MetaMask or Sei Global Wallet, deploying contracts using familiar EVM tools, and connecting to mainnet or testnet RPC endpoints documented in the official docs.