kdembler/viem

TypeScript Interface for Ethereum

Features

Abstractions over the JSON-RPC API to make your life easier
First-class APIs for interacting with Smart Contracts
Language closely aligned to official Ethereum terminology
Import your Browser Extension, WalletConnect or Private Key Wallet
Browser native BigInt, instead of large BigNumber libraries
Utilities for working with ABIs (encoding/decoding/inspection)
TypeScript ready (infer types from ABIs and EIP-712 Typed Data)
First-class support for Anvil & Hardhat
Test suite running against forked Ethereum network

... and a lot lot more.

Overview

// 1. Import modules.
import { createPublicClient, http } from 'viem';
import { mainnet } from 'viem/chains';

// 2. Set up your client with desired chain & transport.
const client = createPublicClient({
  chain: mainnet,
  transport: http(),
});

// 3. Consume an action!
const blockNumber = await client.getBlockNumber();