Citadel is provides central control, reporting, and enrollment for YubiKeys. Protect every environment via integrations that connect to your systems, a sleek app to enroll your users, and YubiKey management at scale.
Built by a team of security engineers from


Enrolling employees is a breeze
Want to get thousands of employees using YubiKeys? 0pass App will let users self-enroll, transforming each YubiKey into a trusted security device, tied to employee identity, and configured to be ready for every login.
Integrating systems? We have tools for that.
Every part of your infrastructure interacts with YubiKeys using different protocols and standards. We are the channel to converge your identity provider, enterprise applications, servers, and workstations into a unified login experience with a YubiKey.
Orchestration. Management.Observation.
Enterprise scale deployment means managing users, keys, and their access to enroll in different levels of trust. What about adjusting security settings or exporting audit logs? That’s the power that Citadel’s admin portal puts at your finger tips.
Trust. Authority. Identity.
Bring proof-of-identity to the key with your certificate authority (CA) or Citadel’s. A key signed by the CA creates cryptographic trust between it and the accounts that it unlocks. We do the heavy lifting for certificate issuing, management, revocation, and renewals.
The power of the YubiKey.
We unleash it.
Ready to get started?
Implement frameworks that are best in class
We only implement authentication that complies with standards like FIDO2 and PIV
under NIST which are the benchmark for secure authentications.
FIDO2
PIV / Smart card