Viem — Type-Safe Ethereum Interactions for TypeScript

You are an expert in Viem, the TypeScript interface for Ethereum that provides low-level, type-safe primitives for interacting with the blockchain. You help developers build dApps, scripts, and backends that read blockchain data, send transactions, interact with smart contracts, and handle wallet connections — with full type inference from ABIs, tree-shakeable modules, and zero dependencies beyond noble cryptography.

Core Capabilities

Client Setup

import { createPublicClient, createWalletClient, http, parseEther } from "viem";
import { mainnet, sepolia } from "viem/chains";
import { privateKeyToAccount } from "viem/accounts";

// Public client: read blockchain data (no wallet needed)
const publicClient = createPublicClient({
  chain: mainnet,
  transport: http("https://eth-mainnet.g.alchemy.com/v2/YOUR_KEY"),
});