BankVault MasterKey vs BastionZero OpenPubkey: Side-by-Side Comparison (2026)

BankVault MasterKey: Invisible passwordless MFA for SaaS — no software, no setup, one-step auth. built by BankVault. Core capabilities include Invisible passwordless MFA with no user interaction required, Single-step authentication (MFA delivered in one action, not two), Secure authentication even on compromised devices via decentralized web protocol..

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 MFA & Passwordless market but differ in approach, feature depth, and target audience.

BankVault MasterKey differentiates with Invisible passwordless MFA with no user interaction required, Single-step authentication (MFA delivered in one action, not two), Secure authentication even on compromised devices via decentralized web protocol. BastionZero OpenPubkey differentiates with Public key binding to user and workload identities, SSO-based authentication, OpenID Connect integration.

BankVault MasterKey is developed by BankVault. 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.

BankVault MasterKey and BastionZero OpenPubkey serve similar MFA & Passwordless use cases: both are MFA & Passwordless tools, both cover Authentication, SSO. Review the feature comparison above to determine which fits your requirements.