verifyEip1271()

verifyEip1271(message, signature, options): Promise<EvmVerifyResult>

Verifies an eip155 CAIP-122 message signed by a smart contract wallet (e.g. Safe) using EIP-1271.

Parses and validates the message like verifyEip191, then calls isValidSignature(hash, signature) on the message address through options.publicClient and expects the magic value 0x1626ba7e. Side effect: one eth_call to the RPC endpoint of the client.

Parameters

message

string

The exact CAIP-122 message string that was signed.

signature

`0x${string}`

The hex-encoded signature returned by the wallet.

options

EvmVerifyOptions

Must contain publicClient; skipExpiration is optional.

Returns

Promise<EvmVerifyResult>

{ success: true, data, method: 'eip1271' }, or { success: false, error } (also when publicClient is missing or the contract call fails). Never throws.

Example


const result = await verifyEip1271(rawMessage, '0xdeadbeef...', { publicClient });
if (result.success) console.log('Contract wallet authenticated:', result.data?.address);