Sei is a blockchain network built for the speed, reliability, and scale required by modern financial markets. The company describes its technology as an onchain standard for global finance, serving firms, funds, infrastructure providers, developers, and users building digital asset applications. Its network supports trading, stablecoins and payments, decentralized finance, tokenized assets, and AI-driven economies, including onchain order books and real-time transaction settlement.

Sei is an EVM-compatible Layer 1 blockchain designed to combine familiar developer tools with high-performance infrastructure. Its architecture includes Autobahn, a low-latency, multi-proposer consensus mechanism, and is engineered for fast finality and high transaction throughput. The Sei Giga roadmap targets sub-400-millisecond finality and capacity of up to 200,000 transactions per second.

For builders, Sei provides documentation, ecosystem integrations, community access, and potential grants and funding through the Sei Development Foundation. The broader ecosystem also offers tools such as a wallet, bridge, token information, network data, and a block explorer. Sei publishes research, technical insights, and ecosystem updates for developers and institutions exploring blockchain-based financial services.