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The Dynamic Unity SDK supports multiple authentication methods. After successful authentication, the SDK automatically populates the wallet list.

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Email OTP

// Send OTP
await DynamicSDK.Instance.Auth.Email.SendOTP("user@example.com");

// Verify OTP (on a separate screen)
await DynamicSDK.Instance.Auth.Email.VerifyOTP("123456");

// Resend if needed
await DynamicSDK.Instance.Auth.Email.ResendOTP();

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SMS OTP

await DynamicSDK.Instance.Auth.Sms.SendOTP(new PhoneData
{
    DialCode = "+1",
    Iso2 = "US",
    Phone = "5551234567",
});

await DynamicSDK.Instance.Auth.Sms.VerifyOTP("123456");

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Social login

await DynamicSDK.Instance.Auth.Social.Connect(SocialProvider.Google);
await DynamicSDK.Instance.Auth.Social.Connect(SocialProvider.Apple);
await DynamicSDK.Instance.Auth.Social.Connect(SocialProvider.Farcaster);

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Passkey sign-in

Passkey sign-in only works on native devices (iOS/Android), not in the Unity Editor or macOS.
await DynamicSDK.Instance.Auth.Passkey.SignIn();

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External JWT

For integrating with your own authentication system: 
await DynamicSDK.Instance.Auth.ExternalAuth.SignInWithExternalJwt(
    new SignInWithExternalJwtParams
    {
        ExternalJwt = jwtToken,
        ExternalUserId = userId,
    });

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Dynamic Widget (built-in auth UI)

The easiest way to add authentication is using the built-in UI: 
DynamicSDK.Instance.UI.ShowAuth();
This displays a full authentication flow with all enabled authentication methods.

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Next steps