SSO Auth Bridges

Open source identity and access management solution for single sign-on and authentication.

Keycloak is the leading open-source identity and access management (IAM) solution that provides robust single sign-on (SSO), user federation, and social login capabilities. It is designed for developers and organizations that require a highly customizable, enterprise-grade security layer without the per-user licensing costs of proprietary alternatives like Okta or Auth0.

Reduce user friction, prevent account takeover, and get a 360° view of your customer and agentic identities with the Descope External IAM platform.

Descope is a developer-centric External IAM (CIAM) platform that uses visual drag-and-drop 'Flows' to build and manage authentication and authorization journeys. It is designed for B2B and B2C applications requiring complex logic like multi-tenancy, passkeys, and SSO without the technical debt of traditional code-heavy systems. Its key differentiator is the visual workflow engine that separates authentication logic from the application's core codebase.

More than authentication, Complete User Management

Clerk is a comprehensive authentication and user management platform that provides pre-built, embeddable UI components optimized for modern frontend frameworks like Next.js. It differentiates itself by handling the entire user lifecycle, including profiles, organization management, and multi-tenancy, as a managed service.

Prevent identity attacks and secure access to apps and resources.

Microsoft Entra ID is a cloud-based identity and access management solution that secures access to applications and resources for workforce and external users. It is designed for organizations of all sizes, with a primary differentiator being its deep, native integration into the Microsoft 365 and Azure ecosystems.

Identity Security for the Digital Enterprise

Ping Identity is an enterprise-grade identity security platform offering SSO, MFA, and automated identity orchestration for workforce and customer use cases. It is specifically designed for large organizations managing complex hybrid environments, distinguishing itself through its highly flexible 'DaVinci' no-code flow builder.

Modern auth and billing for engineers. The fully integrated developer platform.

Kinde is an all-in-one developer platform that consolidates authentication, multi-tenant organization management, feature flags, and billing into a single SDK. Designed primarily for SaaS founders and engineers, it differentiates itself by eliminating the 'integration tax' of connecting separate vendors for core product infrastructure.

Unified Platform for Identity, Access, & Devices

JumpCloud is a cloud directory platform unifying IAM, SSO/MFA, and cross-platform device/endpoint management for mid-market and enterprise IT teams. It serves as a modern, agentic-AI-ready alternative to on-prem AD or fragmented tools, with strong value in centralized control and remote access.

One platform to secure every identity—for humans, machines, and AI.

SailPoint Identity Security Cloud is a mature, AI-powered enterprise IGA platform for managing identity access, governance, and compliance at scale. It targets large organizations with complex, regulated environments needing deep automation and visibility. Its key differentiator is comprehensive feature depth and adaptive AI capabilities across human, machine, and AI identities.

The Identity Layer for Every SaaS Entry Point

Frontegg is a B2B-focused Customer Identity and Access Management (CIAM) platform that provides pre-built authentication, multi-tenancy, and self-service portals. It is designed for SaaS builders who need to scale from simple logins to complex enterprise features like SSO and SCIM without significant custom engineering. Its key differentiator is the 'Admin Portal,' a drop-in UI that allows end-customers to manage their own organizational security settings autonomously.

Secure Identity for Employees, Customers, and AI

Okta is the industry-leading identity and access management (IAM) platform that provides secure SSO, MFA, and automated lifecycle management for workforces and customers. It is designed for medium to enterprise-scale organizations requiring a centralized 'identity fabric' to manage thousands of applications. Its key differentiator is the Okta Integration Network (OIN), which features over 7,000 pre-built integrations, far outpacing most competitors.

Secure AI agents, humans, and whatever comes next

Auth0 is a robust, developer-first identity platform by Okta that provides authentication and authorization for humans and AI agents. It differentiates itself through 'Auth0 Actions' for custom extensibility and a new 'Identity for AI' suite designed to secure agent-to-tool communications and RAG pipelines.

Access without friction. Security without compromise.

OneLogin is a cloud-based Identity and Access Management (IAM) platform that provides single sign-on (SSO), multi-factor authentication (MFA), and automated user provisioning. It is designed for enterprises securing workforce and customer identities, differentiating itself with a massive pre-integrated app catalog and rapid deployment capabilities.

Built-in user management

Supabase Auth is a built-in user management system that integrates natively with PostgreSQL, providing authentication and authorization through Row Level Security (RLS). It is designed for developers who want a self-contained, open-source alternative to Firebase without relying on third-party identity silos.

Auth Stack for AI Apps | Start Free

Scalekit is an identity middleware layer that provides modular authentication and authorization tools specifically designed for B2B SaaS and AI applications. It enables developers to integrate enterprise-ready features like SSO, SCIM, and secure AI agent connectivity without replacing their existing authentication stack. Its standout feature is its specialized support for the Model Context Protocol (MCP) and delegated access for AI agents.

A better way to build auth

Stytch is an API-first identity platform built for B2B SaaS and AI agents, offering developer-centric authentication, authorization, and fraud prevention. It distinguishes itself by providing native multi-tenancy and enterprise features like SSO and SCIM without the typical "enterprise-only" price gating found in legacy competitors.

Your app, Enterprise Ready.

WorkOS is a developer-first platform that provides a suite of APIs to quickly integrate enterprise-grade features like SSO, SCIM, and Directory Sync into SaaS applications. It targets B2B companies looking to bridge the gap between initial product and enterprise compliance. Its key differentiator is its 'Enterprise Ready' abstraction, which simplifies complex protocols like SAML into clean, modern RESTful APIs.