## Sign In with Farcaster (SIWF)

Sign In with Farcaster (SIWF) is a way for users to sign into any app using their Farcaster identity. When a user signs into your application with Farcaster you’ll be able to use public social data like their social graph and profile information to provide a streamlined onboarding experience and social-powered features.

### How does it work?

1. Show a “Sign in with Farcaster” button to the user.
2. Wait for the user to click, scan a QR code and approve the request in Farcaster.
3. Receive and verify a signature from Farcaster.
4. Show the logged in user’s profile picture and username.

## Next Steps

- Integrate SIWF to your app today with [AuthKit](https://docs.neynar.com/farcaster/auth-kit).
- Read about the underlying standard in [FIP-11: Sign In With Farcaster](https://github.com/farcasterxyz/protocol/discussions/110).