@0xkey-io/core on the client and @0xkey-io/sdk-server server actions on the backend.
Email authentication
OTP flow, Auth Proxy endpoints, and security model
React Wallet Kit
Built-in email OTP in the login modal
TypeScript server
server.sendOtp, server.verifyOtp, server.otpLoginGitHub — otp-auth
End-to-end OTP example