Sign in with Ethereum announces new website for ERC-4361

September 2, 2026

The Sign in with Ethereum (SIWE) team announced a new website for ERC-4361, the wallet-standard that underpins Ethereum-based authentication. The standard lets users sign in to web services with their wallet address and signature rather than a traditional password or OAuth account.

SIWE is the specification behind a growing number of web3 login flows, including the "Sign in with Ethereum" option recently added by OpenRouter on top of its Google and GitHub sign-in methods.

Sources

RT @siweAuth: Announcing the new https://t.co/hHZcUdQxrF Sign in with Ethereum (ERC-4361) is the standard that powers the bridge between w…x.com ↗

Ethereum

Ethereum is the community-run technology powering the cryptocurrency ether (ETH) and thousands of decentralized applications.

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