identityserver-api-protection
SkillProtecting APIs with Duende IdentityServer: JWT bearer authentication, reference token introspection, scope-based authorization, DPoP/mTLS proof-of-possession validation, local API authentication, and multi-audience scenarios.
Install
git clone https://github.com/DuendeSoftware/duende-skills.git ~/.claude/skills/identityserver-api-protectionWhat is identityserver-api-protection?
Protecting APIs with Duende IdentityServer: JWT bearer authentication, reference token introspection, scope-based authorization, DPoP/mTLS proof-of-possession validation, local API authentication, and multi-audience scenarios.
What this can do
Capabilities declared in this component's own frontmatter — not inferred.
Inherit all session tools
Declares no tool restrictions — inherits every session tool
~57 tokens of context used while enabled, before you invoke anything
Documentation
README · ~9 min readProtecting APIs with IdentityServer
When to Use This Skill
- Configuring JWT bearer authentication in an ASP.NET Core API to validate tokens from IdentityServer
- Setting up reference token introspection with
AddOAuth2Introspection - Handling both JWT and reference tokens in the same API using
ForwardReferenceToken - Implementing scope-based authorization policies
- Validating Proof-of-Possession tokens (DPoP and mTLS
cnfclaim) - Protecting APIs hosted in the same application as IdentityServer (local API authentication)
- Securing multi-audience API deployments
Docs: https://docs.duendesoftware.com/identityserver/tokens/api-protection
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