Understand the Sei ecosystem
Fundamentals
Account system
Understand native and EVM addresses, keys, and account abstraction.
Token standards
See what ERC20, ERC721, and the native Sei token can do.
Gas and fees
Learn how transaction costs are calculated and paid on Sei.
Wallets
Explore supported wallets and integration options for Sei.
Network
Staking and delegation
Secure the network and earn rewards through staking.
Network governance
Understand the on-chain proposal and voting process for upgrades.
Chains
Connect to Sei Mainnet, Sei Testnet, and development environments.
Block explorers
Track transactions, blocks, and contract activity on Sei.
MCP Server: AI-powered blockchain
The Sei Model Context Protocol (MCP) Server lets AI assistants such as Claude, ChatGPT, and Cursor interact with Sei through natural language. You can execute transactions, query data, and build on Sei with conversational AI.Wallet integration
Check balances, transfer tokens, and manage accounts through AI.
Smart contracts
Read and write contract state with natural-language commands.
Blockchain data
Query blocks, transactions, and network state instantly.
Token operations
Transfer SEI, ERC20 tokens, NFTs, and multi-tokens.
Get started with MCP
Get started with MCP
View on GitHub
View on GitHub
Sei EVM platform details
Traditional EVM constraints solved by Sei
Block time limitations
Replaces Ethereum’s 12-second block time with sub-second finality.
Sequential processing
Removes single-threaded bottlenecks with parallelization.
Inefficient state access
Optimizes state reads and writes with SeiDB.
Core system architecture
Twin Turbo Consensus
- Sub-second blocks
- Fast finality
Parallelization engine
- Multi-core execution
- Transaction classification
SeiDB
- Optimized state access
- Concurrent operations
Performance advantages
High throughput
- 100 MGas/s capacity
- Sub-second block times
- Immediate transaction inclusion
Linear scaling
- Uses multiple cores
- Hardware-optimized
- Efficient resource usage
EVM compatibility
- 100% Ethereum-compatible
- Full tooling support
- Existing code runs without changes
Sei Giga: the next-generation architecture
Sei Giga is designed to be the first Multi-Proposer EVM Layer 1. It will be the next generation of the Sei protocol after the Giga Upgrade. It will arrive as in-place upgrades to the live network. Every validator will propose at the same time. Consensus will finalize only the transaction order. Execution will run asynchronously. On an internal devnet, this architecture sustained more than 5 gigagas per second with ordering finality under 250 ms. Separately, the roadmap target for the Autobahn public testnet is 200,000 TPS.Autobahn consensus
Multi-Proposer BFT: per-validator lanes, an effective steady-state cadence of one cut per 1.5 round trips, and sub-250 ms measured ordering finality.
Async execution
Consensus will fix the ordering. Execution and state attestation will follow, off the critical path.
Parallel execution
Block-STM-style optimistic concurrency across all CPU cores.
Sei Giga in depth
Architecture, roadmap and status, technical specification, and developer guidance.
Key use cases
High-frequency trading
Fast settlement, low latency, and on-chain order books.
Interactive dApps
Responsive interfaces with shorter confirmation times.
Content and social platforms
Efficient interaction for high-volume dApps.