Bugsnag 

The Bugsnag Notifier for .NET gives you instant notification of exceptions thrown from your .NET applications. Any uncaught exceptions will trigger a notification to be sent to your Bugsnag project.

The Bugsnag Notifier for ASP.NET Core gives you instant notification of exceptions thrown from your ASP.NET Core applications. Any uncaught exceptions will trigger a notification to be sent to your Bugsnag project.

The Bugsnag .NET configuration library is used to configure your Bugsnag integration using a Web.config or App.config

The Bugsnag Notifier for ASP.NET WebApi gives you instant notification of exceptions thrown from your ASP.NET WebApi applications. Any uncaught exceptions will trigger a notification to be sent to your Bugsnag project.

The Bugsnag Notifier for ASP.NET gives you instant notification of exceptions thrown from your ASP.NET applications. Any uncaught exceptions will trigger a notification to be sent to your Bugsnag project.

The Bugsnag Notifier for ASP.NET MVC gives you instant notification of exceptions thrown from your ASP.NET MVC applications. Any uncaught exceptions will trigger a notification to be sent to your Bugsnag project.

The Bugsnag .NET notifier for Mono