Apereo CAS vs Duende IdentityServer
Apereo CAS
apereo.github.ioDuende IdentityServer
duendesoftware.comSide by side
| Figure | Apereo CAS | Duende IdentityServer |
|---|---|---|
| Price from | Free | $479.17/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 4 |
| Spec score · OAuth Server Software | 8.6 (#6) | 8.3 (#12) |
| Audience | The Apereo Foundation's stated mission is to assist educational organizations with open technologies supporting learning, teaching, and research. | The Lite plan is described as intended for small teams shipping a focused product, while Standard targets growing teams managing multiple production applications. |
| Protocols | It supports CAS, SAML, WS-Federation, OAuth 2.0, OpenID Connect, and REST protocols. | Core protocol support includes OpenID Connect and OAuth 2.0 with features such as Pushed Authorization Requests and Demonstration of Proof-of-Possession; extended support includes mTLS, JAR, CIBA, and Device Authorization Grant. |
| Purpose | CAS is an enterprise multilingual single sign-on solution and identity provider for the web, with authentication and authorization capabilities. | Duende IdentityServer is an OpenID Connect and OAuth 2.0 framework for ASP.NET Core that centralizes authentication for APIs, SPAs, mobile apps, and microservices in your own environment. |
| Support | Community support is voluntary and has no SLAs or guarantees; the project points users to professional support agreements from commercial providers. | Support is included with each license and varies by plan from community support to priority support and a premium tier with a named Technical Account Manager. |
Plans
Duende IdentityServer
- Lite$5,750 a year
- Standard$12,500 a year
- Advanced$24,900 a year
- CustomPrice not published
In their own words
Apereo CAS
Apereo CAS has no write-up on Specifiction yet; its figures are above.
Duende IdentityServer
Duende IdentityServer has no write-up on Specifiction yet; its figures are above.