• YubiCloud

    Yubico’s web service for verifying one time passwords (OTPs)
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    Strong two-factor validation for any IT system and online service

    Strong security

    YubiKey secrets protected with YubiHSM Hardware Security Module.

    Business continuity

    Redundant service with locations on multiple continents.

    Fast protection

    Free and easy web API integration in less than an hour.

    How YubiCloud works

    Get started with free web APIs for fast and easy integration of YubiCloud into services and IT systems. You can also easily access paid support and SLAs for a smoother experience all round.

    Five YubiCloud OTP validation servers are located around the world, distributed and synchronized to ensure that there is no single point of failure and that your business continuity is assured.

    Check the status of YubiCloud, anytime, anywhere

    YubiKey Authentication Module

    YubiKey authentication modules are developed to add YubiKey two-factor authentication to server-side applications. 

    The YubiKey Authentication Module can validate the OTP against either its own Validation Server or against the Yubico Online Validation Service. 

    Organizations can decide which model works best for their application. The main benefit with your own server is that you are in full control over all AES keys programmed into the YubiKeys. 

    The main benefit of using the Yubico online Validation Service is that the YubiKeys are already ready to use with the Online Validation Service out of the box (no additional handling needed). It also enables users that already have a YubiKey to sign up for your service.

    Integration best practices

    Add YubiKey authentication to server-side applications

    Download to get started

    YubiKey module design guideline document

    Design and develop a comprehensive and configurable YubiKey authentication module for server-side applications. 

    Gain insights and recommendations on how the module should be implemented, administered and maintained.

    The growing popularity and adoption of the YubiKey has resulted in a number of partner enterprise solutions and open source projects offering server-side YubiKey modules for two-factor authentication. 

    Use a set of industry best practices guidelines that will help you experience a smooth deployment, management, authentication and recovery capabilities offered by the array of server side modules available today. 


    • YubiKey Hardware
    • YubiCloud or own validation server

    Read more about Yubico OTP on our developers site