SMS / Email OTP on Sinatra app
Implement SMS / Email OTP Authentication/Login on your Sinatra App using LoginRadius
Sinatra
SMS / Email OTPBuilt for Developers
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Uptime
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Start SMS / Email OTP Implementation Using LoginRadius Admin Console

1
Navigate to Authentication > Passwordless Login.
2
Toggle Passwordless Login to Enable.
3
Configure the OTP settings and ensure an SMS/Email provider is linked.
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