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Auth0/Auth0 Changelog/Introducing the New ASP.NET Core API SDK

Introducing the New ASP.NET Core API SDK

December 5, 2025Auth0 Changelog
$npx -y @buildinternet/releases show rel_43ECUJQTHfdl717YvO8GI

We are excited to announce the release of Auth0.Aspnetcore.Authentication.Api, a new official SDK designed to streamline authentication and security for ASP.NET Core backend applications.

Key Benefits:

  • Supports .NET 8.0+ and built for the modern "middleware" pattern. Developers can now secure an API with a single line: builder.Services.AddAuth0ApiAuthentication(...).
  • Abstracts the complexity of JWT validation. Developers no longer need to write fragile boilerplate code to check Audiences or Issuers. The SDK enforces security best practices out of the box.
  • Supports DPoP with flexible enforcement modes (Allowed, Required, Disabled). Enterprise customers can now enforce a higher level of security with minimal code changes.

Getting Started:

Fetched April 15, 2026