import { Client, http, publicActions } from 'viem'
import { mainnet } from 'viem/chains'
import { tokens } from 'viem/tokens'
 
const client = Client.create({
  chain: mainnet,
  tokens: tokens.all,
  transport: http(),
}).extend(publicActions())
 
const balance = await client.token.getBalance({
  account: '0xd8da6bf26964af9d7eed9e03e53415d37aa96045',
  token: 'usdc',
})
{ amount: 1000000000n, decimals: 6, formatted: '1000' }