Sign in with Ethereum

Open standard for authentication with Ethereum accounts.

Try it out

Supported by

Opensea

Rainbow

Metamask

WalletConnect

Snapshot

Explore ecosystem →

Ethereum with Key

Connection lines

Enrich your app's UX
with onchain data

Works with crypto
and non-crypto apps

Easily integrate
with libraries

How it works

1. Connect your wallet

You can use any wallet provider

2. Sign a message

Following EIP-4361 standard

Message

Hello from SIWE!

URL

https://siwe.com

Network

Ethereum

Account

vitalik.eth

Chain ID

1

Nonce

10c534ea1f3b5

3. You're authenticated

Your onchain ENS profile and EFP connections follow you.

cottons.eth

Following

Followers

Open standard

SIWE is defined by the open community standard EIP 4361.

Add it to your app

Ethereum Identity Kit

Add a SIWE button with our component library

All libraries →

Part of the

Ethereum identity stack

SIWE is complementary with ENS, EFP and other Ethereum identity primitives.

Onchain usernames and profiles

Onchain social graph for Ethereum accounts