Duende IdentityServer
What ChatGPT, Claude, Gemini & Grok actually say · July 2026
The verdict
Duende IdentityServer appears in 1 AI-ranked category — best position #5 for self-hosted oauth and openid connect server.
The mature choice for .NET shops — OpenID-certified framework with deep protocol coverage (including token exchange, CIBA, DPoP tracking spec updates early), excellent documentation, and full control since it embeds in your own ASP.NET Core app rather than running as a black box. Assumption: ranked for practitioners in the .NET ecosystem; outside it, it doesn't apply.
Where Duende IdentityServer falls short, per the models
- Claude Commercial license required beyond small-company/dev use, and it's a framework, not a product — no admin UI or user store; you build and maintain the hosting application yourself.
Top alternatives per the models: Keycloak · ZITADEL · authentik · Ory Hydra
Watch Duende IdentityServer
Boards re-poll weekly and the models change their minds. One short email only when Duende IdentityServer's standing moves — a rank change, a rival overtaking, or new reasoning from the models. Nothing otherwise.
Embed your ranking badge
Duende IdentityServer ranks #5 for best self-hosted oauth and openid connect server by AI-model consensus. Put the badge in your README, docs or site — it updates automatically as the models re-rank.
[](https://modelsagree.com/best/best-self-hosted-oauth-and-openid-connect-server?utm_source=badge&utm_medium=embed&utm_campaign=badge-duende-identityserver)<a href="https://modelsagree.com/best/best-self-hosted-oauth-and-openid-connect-server?utm_source=badge&utm_medium=embed&utm_campaign=badge-duende-identityserver"><img src="https://modelsagree.com/badge/duende-identityserver.svg" alt="Duende IdentityServer — ranked #5 for Best self-hosted OAuth and OpenID Connect server by AI models on ModelsAgree" height="28"></a>Rankings are computed from what the models answer, re-polled weekly · raw reasoning shown verbatim · methodology