Alternatives
10 best SAML IdentityServer alternatives
Tools that cover the same task as SAML IdentityServer (security), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- SAML IdentityServer starts at
- Not listed
- Free plan
- Free tier unknown
- API
- API unknown
- 01
Ory
Ory provides identity, authentication, authorization, and OAuth2/OIDC services through Ory Network and related open-source projects such as Kratos, Hydra, and Keto. The commercial site targets CIAM, B2B IAM, fine-grained permissions, passkeys, and enterprise SSO for applications that need scalable, API-first identity infrastructure.
Best for: Product and platform teams replacing Auth0-style stacks or self-hosting Ory components who need hosted Ory Network production environments.
- 02
Pritunl
Pritunl is an open-source enterprise VPN platform for OpenVPN, WireGuard, and IPsec with a web management UI, multi-host clustering over MongoDB, and optional premium features such as SSO and site-to-site links. It targets self-hosted remote access and VPC peering across clouds.
Best for: Infrastructure teams needing self-hosted VPN with horizontal scaling and enterprise authentication options.
- 03
WorkOS
WorkOS helps SaaS companies add enterprise-ready authentication features such as SSO, Directory Sync, MFA, Audit Logs, and AuthKit user management with minimal integration code. The platform targets staging and production environments with modular APIs for B2B customer IT requirements.
Best for: B2B software vendors selling to enterprise customers who need SSO, SCIM, compliance logging, and self-serve IT onboarding.
- 04
Aserto
Aserto provides cloud-native authorization as a service with fine-grained RBAC, ABAC, or ACL enforced in about a millisecond. Developers use SDKs, policy repositories, and authorizer instances to centralize permissions for applications and APIs.
Best for: Teams adding centralized, low-latency authorization to SaaS apps, especially alongside Auth0 or similar identity providers.
- 05
Cloudanix
Cloudanix is a CNAPP+ platform spanning code, cloud, access, and agentic security on one graph. It offers CSPM, CIEM, workload protection, just-in-time access, coding-agent guardrails, and LLM-native investigation across AWS, Azure, GCP, and Kubernetes with self-serve Pro SKUs and enterprise options.
Best for: Security and platform engineering teams needing unified cloud posture, runtime protection, JIT access, and guardrails for AI coding agents.
- 06
Castle
Castle provides SDKs and APIs to detect bots, monitor risky logins, and stop account abuse using device, email, IP, and behavioral intelligence. Teams integrate Castle to score traffic and automate policy actions in web and mobile apps.
Best for: Product and fraud teams at consumer apps that need bot detection, account takeover protection, and IP intelligence without heavy integration friction.
- 07
Authgear
Authgear is an open-source customer and workforce identity platform from Skymakers. It delivers passkeys, passwordless OTP, SAML SSO, adaptive MFA, RBAC, and user management on Authgear Cloud, customer VPC, or self-hosted deployments with data sovereignty options.
Best for: Teams replacing legacy CIAM vendors who need every login method on every tier and portable user exports.
- 08
Cerbos Hub
Cerbos Hub is Cerbos’s control plane for writing, testing, and deploying authorization policies to PDPs across apps, APIs, and AI workloads. It adds playgrounds, CI validation, policy delivery from Git or Hub, and managed audit logging on top of the open-source Cerbos engine.
Best for: Platform and security engineers externalizing authZ policy who need collaborative testing and staged rollout beyond embedded code checks.
- 09
PropelAuth
PropelAuth provides authentication and org management built for B2B and AI-native products. The platform covers hosted login UIs, SAML and enterprise SSO, RBAC, API keys, and MCP authentication so teams can ship secure multi-tenant apps faster.
Best for: B2B SaaS and AI-native companies that need multi-tenant auth, enterprise SSO, and org management without building it in-house.
- 10
Heroku
Heroku is Salesforce’s cloud application platform for deploying, scaling, and operating web apps and workers without running your own servers. Teams use Git- and container-based deploys, managed data services, add-ons, and enterprise controls while Heroku handles runtime infrastructure.
Best for: Development teams shipping and operating web apps, APIs, and background workers who want a managed PaaS instead of raw VMs.
SAML IdentityServer alternatives: common questions
What is the best free alternative to SAML IdentityServer?
Ory has an ongoing free plan. Pricing lists a Developer plan marked Free for getting started on Ory Network before production tiers. Free plans change, so check the vendor before relying on one.
What is the cheapest SAML IdentityServer alternative?
Aserto has the lowest listed starting price at $0.20/mo.
Which SAML IdentityServer alternatives have an API?
Ory, Pritunl, WorkOS, Aserto, Cloudanix mention API or developer access.