Sei (SEI) is a sector-specific Layer 1 blockchain, specifically designed to optimize trading. Sei is a Layer 1 blockchain that aims to handle a high number of orders per second, with a transaction finality of 380ms. Sei is fully open-source and offers native frontrunning protection, and multiple levels of transaction bundling. It is designed to evolve alongside the industry, with modularity enabling the Sei technology stack to leverage new innovations as governed by the community.

Sei operates using a Twin-Turbo Consensus mechanism, which allows it to aim to be a high-speed blockchain, all while maintaining low transaction costs and industry-leading throughput. It is safeguarded by Proof of Stake, which is a consensus mechanism that allows for high scalability. It also offers user-centric features such as native frontrunning protection and multiple levels of transaction bundling. Sei's design allows it to scale with the industry, aiming to support a variety of apps.

Sei is primarily designed to enhance the trading experience on decentralized exchanges (DEXes). It aims to address the unique requirements of DEXes for reliability, scalability, and speed. Sei can also be used in the NFT marketplace and in crypto games that have built-in exchanges for users to trade in-game NFTs and tokens. Furthermore, Sei's high scalability and speed make it suitable for modern applications that require high performance. Its security-first approach and user-centric features also make it a suitable platform for building and deploying decentralized applications.

Sei was developed in response to the need for a more reliable, scalable, and fast blockchain for trading. It was built from the ground up to prioritize security, with the aim to have the backing of large institutions. Sei is a Layer 1 blockchain that aims to handle a high volume of transactions with quick finality. It seeks to be trusted by operators, investors, and institutions. Over time, Sei has evolved to offer features such as native frontrunning protection, seamless interoperability, and multiple levels of transaction bundling. It has also committed to being carbon neutral, leveraging proof of stake and other innovations to maintain minimal environmental impact.