Auth0 ASP.NET Core Web API Integration

Protect ASP.NET Core Web API endpoints with JWT access token validation using Auth0.AspNetCore.Authentication.Api.

Prerequisites

• .NET 8.0 SDK or higher
• Auth0 API configured (not Application - must be API resource)
• If you don't have Auth0 set up yet, use the auth0-quickstart skill first

When NOT to Use

• Server-rendered web applications - Use session-based auth (Auth0.AspNetCore.Authentication) for MVC/Razor Pages apps
• Single Page Applications - Use auth0-react, auth0-vue, or auth0-angular for client-side auth
• Mobile applications - Use auth0-react-native for React Native/Expo
• Blazor WebAssembly - Requires different auth approach (OIDC client-side)