Sustainsys/Saml2

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1008 stars · 600 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Sustainsys.Saml2 is a C# library that adds SAML2P support to ASP.NET applications, letting a web site act as a SAML2 Service Provider for single sign-on. It supports ASP.NET Core (v3/main) plus legacy HttpModule, MVC, and Owin integration in the v1/v2 branches.

Use cases

• add SAML2 single sign-on to an ASP.NET Core app
• act as a SAML service provider against an identity provider
• integrate enterprise IdP login like ADFS or Okta into ASP.NET
• migrate from Kentor.AuthServices to a maintained SAML2 library
• support federated authentication in Owin or MVC applications

When to choose

• you need SAML2P SP functionality in an ASP.NET or ASP.NET Core application
• you must federate with enterprise identity providers using SAML
• you want a mature, security-focused SAML library for .NET

When to avoid

• you need OAuth2 or OpenID Connect rather than SAML
• you're on a non-.NET stack
• you need a fully managed commercial-support guarantee without a support contract

Facets

library · maturity active

auth security middleware security web-development backend dotnet cross-platform saml2 sso service-provider aspnet-core identity-federation csharp web-server

Member repositories

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markdown · JSON · MCP: product_card(name="Sustainsys/Saml2")