> For the complete documentation index, see [llms.txt](/llms.txt).

# Farcaster sign-in with Embedded Wallets

[Farcaster](https://docs.farcaster.xyz/) sign-in lets users authenticate with a Farcaster identity. Use the default connection hosted by Embedded Wallets.

This page documents the default `connectTo` path (`AUTH_CONNECTION.FARCASTER`). Embedded Wallets doesn't provide a dashboard Client ID field for Farcaster, and this guide doesn't document a custom Auth0, Firebase, or Cognito path.

## Default Farcaster sign-in

The default connection uses the Farcaster credentials managed by Embedded Wallets.

### Caveats

- The Farcaster authorization identifies the application managed by Embedded Wallets, not your dapp.
- You can't change the Farcaster application configuration, because you don't own the credentials.
- Switching away from the default Farcaster connection later produces a different wallet address for the same person.

### Configure the default connection

1. Open your project in the [MetaMask Developer Dashboard](https://developer.metamask.io).
2. Select **Social Connections**.
3. Enable **Farcaster**.
![Farcaster in the Social Connections settings](/assets/images/authentication-social-connections-39836c31a54393f4387abf946cf59a2f.png) 

The SDK reads the connection from the dashboard. You don't need to add Farcaster credentials to your SDK configuration.

## Group Farcaster connections

A [group connection](/embedded-wallets/authentication/group-connections/) gives the same person one wallet address across several login methods.

Only group Farcaster with another connection when both resolve to the same JWT user identifier. Don't assume a Farcaster FID matches a Google or email identifier.

## Usage examples

### Default implicit flow

**React**

```tsx
import { AUTH_CONNECTION, WALLET_CONNECTORS } from '@web3auth/modal'
import { useWeb3AuthConnect } from '@web3auth/modal/react'

const { connectTo } = useWeb3AuthConnect()

await connectTo(WALLET_CONNECTORS.AUTH, {
  authConnection: AUTH_CONNECTION.FARCASTER,
})

```

**Vue**

```ts
import { AUTH_CONNECTION, WALLET_CONNECTORS } from '@web3auth/modal'
import { useWeb3AuthConnect } from '@web3auth/modal/vue'

const { connectTo } = useWeb3AuthConnect()

await connectTo(WALLET_CONNECTORS.AUTH, {
  authConnection: AUTH_CONNECTION.FARCASTER,
})

```

**JavaScript**

```ts
import { AUTH_CONNECTION, WALLET_CONNECTORS } from '@web3auth/modal'

await web3auth.connectTo(WALLET_CONNECTORS.AUTH, {
  authConnection: AUTH_CONNECTION.FARCASTER,
})

```

**React Native**

```tsx
import { AUTH_CONNECTION, useWeb3AuthConnect } from '@web3auth/react-native-sdk'

const { connectTo } = useWeb3AuthConnect()

await connectTo({
  authConnection: AUTH_CONNECTION.FARCASTER,
})

```

**Android**

```kotlin
val response = web3Auth.connectTo(
  LoginParams(AuthConnection.FARCASTER)
)

```

**iOS**

```swift
let response = try await web3Auth.connectTo(
    loginParams: LoginParams(authConnection: .FARCASTER)
)

```

**Flutter**

```dart
final response = await Web3AuthFlutter.login(
  LoginParams(loginProvider: Provider.farcaster),
);

```