#### [Abblix\.Oidc\.Server](https://www.abblix.com/en/docs/api/abblix-oidc-server 'index')

## Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces Namespace

| Classes | |
| :--- | :--- |
| [IntrospectionSuccess](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.IntrospectionSuccess 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.IntrospectionSuccess') | Server\-side model of the introspection response defined by RFC 7662 §2\.2: a Boolean `active` flag and, when active, the token's metadata claims\. Hosts may extend the JSON via additional top\-level members; cross\-domain extensions should be listed in the IANA "OAuth Token Introspection Response" registry \(RFC 7662 §3\.1\)\. |
| [IntrospectionSuccess\.Parameters](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.IntrospectionSuccess.Parameters 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.IntrospectionSuccess\.Parameters') | Wire\-level member names of the introspection response, as registered in the IANA "OAuth Token Introspection Response" registry \(RFC 7662 §3\.1\)\. |
| [ValidIntrospectionRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.ValidIntrospectionRequest 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.ValidIntrospectionRequest') | Output of [IIntrospectionRequestValidator](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.IIntrospectionRequestValidator 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.IIntrospectionRequestValidator') handed to the processor: pairs the original request with either the parsed token \(active branch\) or a `null` token \(inactive branch produced via [InvalidToken\(IntrospectionRequest, ClientInfo\)](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.ValidIntrospectionRequest#Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.ValidIntrospectionRequest.InvalidToken(Abblix.Oidc.Server.Model.IntrospectionRequest,Abblix.Oidc.Server.Features.ClientInformation.ClientInfo) 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.ValidIntrospectionRequest\.InvalidToken\(Abblix\.Oidc\.Server\.Model\.IntrospectionRequest, Abblix\.Oidc\.Server\.Features\.ClientInformation\.ClientInfo\)'), used so token\-level failures flow through the same processing path without disclosing why per RFC 7662 §2\.2\)\. |

| Interfaces | |
| :--- | :--- |
| [IIntrospectionHandler](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.IIntrospectionHandler 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.IIntrospectionHandler') | Defines the contract for handling introspection requests to determine the current state and validity of OAuth 2\.0 tokens, such as access tokens or refresh tokens\. |
| [IIntrospectionRequestProcessor](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.IIntrospectionRequestProcessor 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.IIntrospectionRequestProcessor') | Builds the RFC 7662 introspection response for an already\-validated request: returns `active=true` with claims for a live token, or `active=false` alone when the token is missing, expired, revoked, or issued to a different client \(§2\.2\)\. |
| [IIntrospectionRequestValidator](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.IIntrospectionRequestValidator 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.IIntrospectionRequestValidator') | Authenticates the calling client \(RFC 7662 §2\.1, "the protected resource calls the introspection endpoint using an HTTP request"\) and validates the supplied `token`\. Implementations are expected to coerce token problems \(expired, signed by a different issuer, audience mismatch, issued to another client\) into a non\-disclosing `active=false` result via [InvalidToken\(IntrospectionRequest, ClientInfo\)](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.ValidIntrospectionRequest#Abblix.Oidc.Server.Endpoints.Introspection.Interfaces.ValidIntrospectionRequest.InvalidToken(Abblix.Oidc.Server.Model.IntrospectionRequest,Abblix.Oidc.Server.Features.ClientInformation.ClientInfo) 'Abblix\.Oidc\.Server\.Endpoints\.Introspection\.Interfaces\.ValidIntrospectionRequest\.InvalidToken\(Abblix\.Oidc\.Server\.Model\.IntrospectionRequest, Abblix\.Oidc\.Server\.Features\.ClientInformation\.ClientInfo\)')\. |