YubiOn FIDO2 Server Service
Add passkey authentication to your web servicewithout building your own FIDO2 server.
Who is this for
Challenges FIDO2 Server Service solves
Does this sound familiar?
We want passkey authentication for our web service, but lack the resources to build our own FIDO2 server
We want to fundamentally eliminate account takeover risk from password breaches and phishing
We want to reduce users' password management burden and improve the login experience
We don't have FIDO2 specialists in-house
We want to highlight strong security to boost our service's credibility and brand value
Supported Environments
Key Features
FIDO2 Server Service features
FIDO2 server delivered via API
The server-side functions required for passkey (FIDO2) authentication are provided as a cloud API. No need to build or maintain your own server — free your development resources to focus on your core product.
Phishing-resistant authentication
FIDO2-based authentication fundamentally neutralizes phishing, password breaches, and credential stuffing attacks. Since no passwords are used, there is structurally no risk of credential leakage.
Smartphone biometric authentication
Enable passkey login using your users' fingerprint or face recognition directly on their smartphones. No passwords to remember — just a seamless, intuitive login experience.
Simple API integration
Implement the authentication flow via RESTful API. Comprehensive documentation and sample code make it possible to integrate quickly, even without deep FIDO2 expertise.
Management dashboard
View authentication logs, user management, and license status in one dashboard. Real-time insights for monitoring usage and investigating issues.
Flexible, usage-based pricing
Pricing plans to suit everything from small-scale PoC to full production. Try the free trial to evaluate features before committing.
For closed networks
NetFluX YubiOn FIDO2 Server Appliance (on-premises)
A box-type YubiOn FIDO2® Server you can install inside your own environment — ideal for closed, air-gapped networks with no external access.

Passwordless, secure access management
High reliability, made in Japan
Power efficient
Low power draw — max 6.0W.
Spindle-less, no AC adapter
Disk-less, fan-less spindle-less design. No AC adapter; built-in power supply.
UPS integration
UPS integration for a safe shutdown in case of unexpected power loss.
Specifications
System Requirements
| Item | Details |
|---|---|
| Service type | Cloud API (SaaS) |
| Supported standards | FIDO2 / WebAuthn (W3C Recommendation compliant) |
| Supported authenticators | Passkeys (smartphone biometrics) / YubiKey / Other FIDO2-compliant devices |
| Integration method | RESTful API |
| Authentication server setup | Not required (provided as a cloud service) |
| Management features | Dashboard (authentication logs, user management, license management) |
| Free trial | Available |
| Pricing | Usage-based / monthly plan (contact us for details) |
| Support | Japanese language support (documentation & inquiry response) |
FAQ
FAQ
Try it free — no FIDO2 server required
No server setup needed. Check the API docs and start developing and testing right away.