Networks
Recipes that send transactions use Sei Testnet. Get testnet SEI from the faucet. The public endpoints have rate limits. For production traffic, use a dedicated RPC provider.
Client setup
viem quickstart
Read chain data and send transactions from Node.js with viem.
ethers v6 quickstart
Read chain data and send transactions with ethers.
Wagmi and React
Connect wallets, read chain state, and send transactions in a React dApp.
Python quickstart
Read chain data and sign transactions with web3.py.
Accounts and transactions
Read a balance
Read the SEI and ERC-20 balances of any address.
Send SEI
Send SEI to another address and confirm the receipt.
Transaction lifecycle
Send a transaction, wait for the receipt, and decode its logs.
Error handling
Decode reverts, handle wallet rejections, and recover from RPC errors.
Sponsor gas with Pimlico
Send from a smart account while a paymaster pays the gas.
Tokens
Deploy an ERC-20
Deploy an OpenZeppelin token with Foundry, Hardhat, or Remix.
ERC-20 interaction
Read token data, transfer tokens, and manage approvals.
ERC-721 interaction
Read NFT ownership and transfer NFTs.
ERC-1155 interaction
Read balances, transfer tokens, and approve operators.
Contracts
Deploy and verify
Deploy any contract and publish its source on Seiscan.
Listen to events
Stream new events over WebSocket and fetch past events.
Multicall
Batch many contract reads into one request.
Read a price feed
Read SEI/USD from an oracle and check that it is fresh.
Sei features
Sei precompiles
Call staking, governance, and other native features from the EVM.
Pointer contracts
Use CosmWasm tokens through standard ERC interfaces.