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One-Click Auth

One-Click Auth represents a key advancement within WalletConnect v2, streamlining the user authentication process in AppKit by enabling them to seamlessly connect with a wallet and sign a SIWE message with just one click. Connecting a wallet, proving control of an address with an off-chain signature, authorizing specific actions. These are the kinds of authorizations that can be encoded as “ReCaps”. ReCaps are permissions for a specific website or dapp that can be compactly encoded as a long string in the message you sign and translated by any wallet into a straight-forward one-sentence summary. WalletConnect uses permissions expressed as ReCaps to enable a One-Click Authentication.

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Pre-requisites

In order for One-Click Auth to work, you need to meet the following requirements:
  1. Enable SIWX in your AppKit configuration - One-Click Auth requires SIWX (Sign In With X) to be enabled in your AppKit setup.
  2. Configure EVM chains only - One-Click Auth currently supports EVM chains only. Make sure your AppKit networks configuration includes only EVM-compatible chains.
  3. Use Reown Authentication or set up a backend - You need to have a backend to communicate with. This backend will be used to generate a nonce, verify messages and handle sessions. More info here

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How It Works

When users connect their wallet with One-Click Auth enabled:
  1. The connection and SIWE message sign are done in a single step
  2. Your backend receives and verifies the signature
  3. The user is authenticated and ready to use your app