BastionZero OpenPubkey vs Okta Auth0: Side-by-Side Comparison (2026)

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..

Okta Auth0: Identity and access management platform for authentication and authorization. built by Auth0. Core capabilities include Email-based authentication, Social login with GitHub, Social login with Google..

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

BastionZero OpenPubkey differentiates with Public key binding to user and workload identities, SSO-based authentication, OpenID Connect integration. Okta Auth0 differentiates with Email-based authentication, Social login with GitHub, Social login with Google.

BastionZero OpenPubkey is developed by BastionZero. Okta Auth0 is developed by Auth0. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

BastionZero OpenPubkey and Okta Auth0 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.