Sei Documentation

The first parallelized EVM blockchain delivering unmatched scalability and speed.

Action required: IBC assets on Sei will become inaccessible

If you hold USDC.n (USDC via Noble), USDT.kava (Kava USDT), Wormhole-bridged tokens, or any other IBC asset on Sei, you must swap, migrate, or bridge out before the governance proposal to disable inbound/outbound IBC transfers passes and is activated to avoid permanent loss of access. After this, Sei will no longer support IBC bridging of assets from Cosmos-based chains to and from Sei Network.

Consult the SIP-03 Migration Guide for the full list of affected assets, required actions, and supported routes.

For USDC.n specifically, see: Holders of USDC.n Need to Swap or Migrate .

Quick Start

Deploy a Smart Contract

Deploy EVM contracts with parallelized execution.

Build a Frontend

Create powerful dApps with Sei’s fast finality.

Scaffold with create-sei

Bootstrap a full-stack Sei project in seconds.

Verify Contracts

Verify and publish your contract source code.

Essential Resources

Chain Info

RPC URLs & Chain IDs

Faucet

Testnet tokens

Block Explorers

Inspect transactions

Wallets

Supported wallets

RPC Providers

Infrastructure partners

Gas & Fees

Pricing & optimization

Ecosystem & Integrations

Sei Global Wallet

Onboard users from any chain with a single wallet.

AI Tooling

Deploy AI agents that execute smart contract actions.

Tokens

View and manage SEI and ERC-20/721 in wallets.

Indexers

Query on-chain data with Goldsky, The Graph, and more.

Oracles

Chainlink, Pyth, Redstone, and API3 price feeds.

USDC & Payments

Fast, low-fee payments with immediate finality.

x402 Micropayments

Monetize APIs with HTTP-native payments.

In-App Swaps

Embed token swaps directly in your dApp.

Migrate to Sei

Sei vs Ethereum

Key differences to know.

From Other EVMs

Migrate existing EVM dApps.

From Solana

Transition from Solana to Sei.

Learn

Sei Giga Architecture

Next-gen design enabling giga gas execution bandwidth.

Twin Turbo Consensus

Sub-second finality and fast block production.

Parallelization Engine

Optimistic, multi-core transaction execution.

SeiDB

State access optimized for high throughput.

Governance

Proposals, voting, and staking overview.

Interoperability

EVM and CosmWasm cross-VM communication.

Smart Contracts

Deploy & Debug on Sei

Write, deploy, and debug Solidity smart contracts with your favorite toolchain. Sei is fully EVM-compatible with 400 ms blocks and parallelized execution.