App.Metrics by: Allan Hardy and Contributors

App Metrics is an open-source .NET Standard library used to record application metrics.

App.Metrics.Abstractions by: Allan Hardy

App Metrics Core abstractions and interfaces for metric types, reporting, filtering and more.

App.Metrics.Concurrency by: Allan Hardy and Contributors

Provides useful structures for performing efficient concurrent operations. Original Project: https://github.com/etishor/ConcurrencyUtilities, including a port of Java's LongAdder and Striped64 classes

App.Metrics.Core by: Allan Hardy

App Metrics core components. Contains metric types and default implementations for metric reporting, filtering and more.

App.Metrics.Extensions.Middleware by: Allan Hardy

Extends the App.Metrics library providing a set AspNet Core Middleware Components which will record things like error rates per endpoint and an overall rate, request rates per endpoint and an overall rate etc.

App.Metrics.Formatters.Ascii by: Allan Hardy

App Metrics Formatters for metrics and environment data to plain text.

App.Metrics.Formatters.Json by: Allan Hardy

App Metrics Formatters for metrics and environment data to JSON using Newtonsoft.Json.

Ardalis.GuardClauses by: Steve Smith (@ardalis)

A simple package with guard clause helper methods. See docs for how to extend using your own extension methods.

Asp.Versioning.Abstractions by: .NET Foundation and Contributors

The abstractions library for API versioning.

AspectCore.Abstractions by: Lemon

The abstract design of the AspectCore framework.

AspectCore.Core by: Lemon

The implementation of the AspectCore framework.

AspectCore.Extensions.DependencyInjection by: Lemon

Interceptor and dynamicProxy support for Microsoft.Extensions.DependencyInjection via AspectCore Framework.

AspectCore.Extensions.Reflection by: Lemon

Reflection extension system for AspectCore Framework.

Aspire.Dashboard by: Microsoft

Dashboard browser interface for .NET Aspire.

AspNet.Security.OAuth.Validation by: Kévin Chalet

OAuth2 validation middleware for ASP.NET Core.

AspNet.Security.OpenIdConnect.Extensions by: Kévin Chalet

OpenID Connect extensions for the OpenID Connect server middleware.

AspNet.Security.OpenIdConnect.Primitives by: Kévin Chalet

OpenID Connect primitives for the OpenID Connect server middleware.

AspNet.Security.OpenIdConnect.Server by: Kévin Chalet

OpenID Connect server middleware for ASP.NET Core.

AsyncBridge.Portable by: Daniel Grunwald Omer Mor Alex Davies

Adds the new C#5 async features for .NET 4.0 and Silverlight 5 projects (portable library)

AsyncFixer by: Semih Okur

AsyncFixer detects common async/await anti-patterns and, when possible, offers automatic fixes. It currently reports 6 categories of async/await misuse and provides code fixes for 3 of them. It has been validated against thousands of open-source C# projects and is designed to handle tricky real-world edge cases. Tool-friendly diagnostics support AI-assisted workflows even when a built-in code fix is not available.