AccessMatrix UAS vs BastionZero OpenPubkey: Side-by-Side Comparison (2026)

AccessMatrix UAS: Vendor-agnostic authentication server supporting MFA, biometrics, FIDO2 & HSMs. built by i-Sprint Innovations. Core capabilities include Pluggable authentication modules supporting passwords, OTPs, and FIDO2, Multi-biometric support: face, fingerprint, iris, voice, and palm vein recognition, FIDO2 device lifecycle management (registration, verification, and ongoing management)..

BastionZero OpenPubkey: Open source authentication binding public keys to identities via SSO/OpenID. built by BastionZero. Core capabilities include Public key binding to user and workload identities, SSO-based authentication, OpenID Connect integration..

Both serve the Multi-Factor Authentication and Single Sign-On market but differ in approach, feature depth, and target audience.

AccessMatrix UAS differentiates with Pluggable authentication modules supporting passwords, OTPs, and FIDO2, Multi-biometric support: face, fingerprint, iris, voice, and palm vein recognition, FIDO2 device lifecycle management (registration, verification, and ongoing management). BastionZero OpenPubkey differentiates with Public key binding to user and workload identities, SSO-based authentication, OpenID Connect integration.

AccessMatrix UAS is developed by i-Sprint Innovations. BastionZero OpenPubkey is developed by BastionZero. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

AccessMatrix UAS and BastionZero OpenPubkey serve similar Multi-Factor Authentication and Single Sign-On use cases: both are Multi-Factor Authentication and Single Sign-On tools, both cover Authentication, SSO. Review the feature comparison above to determine which fits your requirements.