See SDK Reference for more details on the PKP Viem Account. PKP Viem Account Reference

​
What it is

A drop‑in, Viem‑compatible account that behaves like an EOA account, but is backed by a PKP. It exposes signMessage, signTransaction, and signTypedData so existing Viem workflows continue to work unchanged, while signatures are produced by the Lit Network using your PKP.

​
Examples

Creates a Viem account instance that can sign transactions using a PKP 
const pkpAccount = await litClient.getPkpViemAccount({
  pkpPublicKey: '0x...',
  authContext: { ... },
  chainConfig: mainnet // from viem/chains
});

const txHash = await viemClient.sendTransaction({
  account: pkpAccount,
  to: '0x...',
  value: parseEther('0.1')
});