eip-712
Tiny library with utility functions that can help with signing and verifying EIP-712 based messages
@ambire/signature-validator
Signature validation library aiming to verify all different signature types for Ethereum and other EVM chains, including smart contract signatures (EIP 1271) and typed data (EIP 712)
eth-typed-data
A library to simplifiy interacting with and signing EIP712 typed data