Top 20 NuGet 2fa Packages

This package contains the open source C# client for MessageBird's REST API. Documentation can be found at: https://www.messagebird.com/developers
.Net library for two-factor (or multi-factor) authentication using TOTP and QR-codes.
OASIS OTP authentication service integration component. Providing a cloud based one time passcode authentication service.
A Cross Platform OTP (TOTP HOTP) Library for .NET Core NetStandard
An implementation of TOTP and HOTP which is commonly used for multi factor authentication by using a shared key between the client and the server to generate and verify one time use codes. For documentation, visit https://github.com/kspearrin/Otp.NET
An ASP.NET Core library for generating and validating one time passwords for google authenticator.
MonoSign U2F/FIDO Client Library
Yoti .NET SDK, providing Yoti API support for Login, Verify (2FA) and Age Verification
An ASP.NET Core library for generating and validating one time passwords for google authenticator. It seems that dotnet pack has a problem to pack own project. This Package needs AspNetCore.Totp. This is a workaround to not merge my project into one. If you find way of doing it correctly, let me kno...
Another Implementation of the Twilio's Authy 2FA Api for .Net Framework
OtpSharp for .NET Core / NetStandard
Notakey .NET SDK for requesting and verifying verification
A .NET HttpClient wrapper for interacting with the Duo Security Auth REST API.
C# .Net API client for twostep.io
A tool that generate time-based one-time passwords (RFC 6238)
Yoti Owin .NET SDK, providing Yoti API support for Login, Verify (2FA) and Age Verification
LaunchKey Windows Phone SDK
A library for integrating Privakey authentication to .NET-based web services. Privakey is a secure, password-free, multi-factor authentication service. For more information visit https://www.privakey.com or contact support@privakey.com
Sentinel API SDK for .NET applications
This is a client of Zamanak (www.zamanak.ir) web service