Getting Started ​

Overview ​

Wagmi Core is a VanillaJS library for Ethereum. You can learn more about the rationale behind the project in the Why Wagmi section.

Manual Installation ​

To manually add Wagmi to your project, install the required packages.

pnpm add @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

pnpm add @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

npm install @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

npm install @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

yarn add @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

yarn add @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

bun add @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

bun add @wagmi/core@rc @wagmi/connectors@rc viem@2.0.0-rc.0

• Wagmi Connectors is a collection of interfaces for linking accounts/wallets to Wagmi.
• Viem is a TypeScript interface for Ethereum that performs blockchain operations.
• TypeScript is optional, but highly recommended. Learn more about TypeScript support.

Create Config ​

Create and export a new Wagmi config using createConfig.

import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

In this example, Wagmi is configured to use the Mainnet and Sepolia chains. Check out the createConfig docs for more configuration options.

Use Wagmi ​

Now that everything is set up, you can pass the config to use actions.

import { getAccount, getEnsName } from '@wagmi/core'
import { config } from './config'

const { address } = getAccount(config)
const ensName = await getEnsName(config, { address })

import { getAccount, getEnsName } from '@wagmi/core'
import { config } from './config'

const { address } = getAccount(config)
const ensName = await getEnsName(config, { address })

import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

Next Steps ​

For more information on what to do next, check out the following topics.

• TypeScript Learn how to get the most out of Wagmi's type-safety and inference for an enlightened developer experience.
• Actions Browse the collection of actions and learn how to use them.
• Viem docs Wagmi Core is a wrapper around Viem that manages account and client reactivity. Learn more about Viem and how to use it.