telesignsdk
Official TeleSign SDK for Rest APIs including Messaging (SMS), Score, PhoneID, Voice, and AppVerify
@authsignal/browser
**[Authsignal](https://www.authsignal.com) provides passwordless step up authentication (Multi-factor Authentication - MFA) that can be placed anywhere within your application. Authsignal also provides a no-code fraud risk rules engine to manage when step
otplib
HMAC-based (HOTP) and Time-based (TOTP) One-Time Password library