FusionAuth is the authentication and authorization platform engineered for developers who demand flexibility and control. Built from the ground up to integrate with any stack, every feature — from user registration to MFA and SSO — is exposed via a modern, well-documented API.
Support for every major identity protocol is included out of the box: OIDC, SAML, OAuth2, JWT, passwordless login, social sign-on, and more. Whether you’re building a greenfield app or retrofitting auth into a legacy system, FusionAuth adapts to your use case — not the other way around.
Need compliance? FusionAuth helps you meet GDPR, HIPAA, and COPPA standards quickly and reliably.
Deploy it your way: install on Linux, Windows, macOS, Docker, or Kubernetes — or go with FusionAuth Cloud, our managed SaaS hosting. No black boxes. No vendor lock-in. Just powerful, customizable auth that works the way you do.
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Auth0 takes a modern approach to Identity and enables organizations to provide secure access to any application, for any user. Auth0 is highly customizable, and simple yet flexible. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation.
With Auth0, you can rapidly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control.
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Curity
Curity's identity server serves as a comprehensive platform for identity and API security that adheres to established standards, aimed at delivering strong authentication and authorization for various digital services. By integrating identity security with API security, it facilitates efficient customer identity and access management, thereby promoting digital transformation, fostering growth, and enhancing customer loyalty. The platform boasts an array of features, such as multi-factor authentication, user journey orchestration, decentralized identity, and secure access management. It is compatible with several identity-related standards, including OAuth, OpenID Connect, and SCIM, which helps ensure both interoperability and adherence to industry norms. The architecture of Curity is grounded in the principle of separating concerns, which significantly improves security, flexibility, and scalability. Additionally, it offers sophisticated configuration management capabilities, allowing for transaction-based changes, rollbacks, and backups, all of which can be managed through a user-friendly web interface, command-line interface, RESTCONF API, and XML configuration files. With these diverse tools and features, the Curity identity server stands out as a vital solution for organizations looking to enhance their digital security landscape.
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Cisco Duo
Secure your workforce with powerful, simple access security. We are Cisco Duo. Our modern access security system is designed to protect all users, devices, applications, so you can focus on what you do best. Secure access for all users and devices, in any environment, from any location. You will enjoy the peace of mind that only total device visibility and trust can provide. A SaaS solution that natively protects all applications and is easy to deploy, scaleable and quick to respond to threats. Duo's access security protects all applications from compromised credentials and devices. It also provides comprehensive coverage that helps you meet compliance requirements. Duo integrates natively with applications to provide flexible, user friendly security that is easy to implement and manage. It's a win-win-win for administrators, users, and IT staff. Multi-factor authentication, dynamic device trust and adaptive authentication are key components of your zero-trust journey. Secure SSO is also a part of the mix.
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