Microsoft.AspNetCore.OpenApi 8.0.26

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Microsoft.AspNetCore.OpenApi --version 8.0.26
                    


                    

                
NuGet\Install-Package Microsoft.AspNetCore.OpenApi -Version 8.0.26
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.26" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="8.0.26" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Microsoft.AspNetCore.OpenApi" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Microsoft.AspNetCore.OpenApi --version 8.0.26
                    


                    

                
#r "nuget: Microsoft.AspNetCore.OpenApi, 8.0.26"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Microsoft.AspNetCore.OpenApi@8.0.26
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Microsoft.AspNetCore.OpenApi&version=8.0.26
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Microsoft.AspNetCore.OpenApi&version=8.0.26
                    


                            Install as a Cake Tool

Provides APIs for annotating route handler endpoints in ASP.NET Core with OpenAPI annotations.

This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/829dd6d36442c2bcf83ebfc9d4159b7ecc15c2ff

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (792)

Showing the top 5 NuGet packages that depend on Microsoft.AspNetCore.OpenApi:

Package Downloads
MassTransit.AspNetCore

MassTransit AspNetCore Support, including Dashboard; MassTransit provides a developer-focused, modern platform for creating distributed applications without complexity.
Rystem.Api

Rystem.Api helps you to integrate Api Server and Automated Client for Aspect-Oriented programming.
Indice.AspNetCore

Package Description
Scalar.AspNetCore.Microsoft

Provides OpenAPI transformers for Microsoft.AspNetCore.OpenApi that enable Scalar-specific extensions in your OpenAPI document.
IntelliTect.Coalesce

Package Description

GitHub repositories (286)

Showing the top 20 popular GitHub repositories that depend on Microsoft.AspNetCore.OpenApi:

Repository Stars
microsoft/semantic-kernel
Integrate cutting-edge LLM technology quickly and easily into your apps
jasontaylordev/CleanArchitecture
Clean Architecture Solution Template for ASP.NET Core
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Documentation for ASP.NET Core
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A reference .NET application implementing an eCommerce site
dodyg/practical-aspnetcore
Practical samples of ASP.NET Core 10, 9, 8.0, 7.0, 6.0, 5.0, 3.1, 2.2, and 2.1,projects you can use. Readme contains explanations on all projects.
AssetRipper/AssetRipper
GUI Application to work with engine assets, asset bundles, and serialized files
RicoSuter/NSwag
The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript.
fullstackhero/dotnet-starter-kit
Production Grade Cloud-Ready .NET 10 Starter Kit (Web API + Blazor Client) with Multitenancy Support, and Clean/Modular Architecture that saves roughly 200+ Development Hours! All Batteries Included.
FastEndpoints/FastEndpoints
A light-weight REST API development framework for ASP.NET 8 and newer.
microsoft/aspire
Aspire is the tool for code-first, extensible, observable dev and deploy.
ChilliCream/graphql-platform
Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Nitro the awesome Monaco based GraphQL IDE.
ServiceStack/ServiceStack
Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
microsoft/fluentui-blazor
Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications
thomhurst/TUnit
A modern, fast and flexible .NET testing framework
oskardudycz/EventSourcing.NetCore
Examples and Tutorials of Event Sourcing in .NET
dotnet/maui-samples
Samples for .NET Multi-Platform App UI (.NET MAUI)
martinothamar/Mediator
A high performance implementation of Mediator pattern in .NET using source generators.
evolutionary-architecture/evolutionary-architecture-by-example
Navigate the complex landscape of .NET software architecture with our step-by-step, story-like guide. Unpack the interplay between modular monoliths, microservices, domain-driven design, and various architectural patterns. Go beyond the one-size-fits-all solutions and understand how to blend these approaches based on your unique needs.
dotnet/aspnet-api-versioning
Provides a set of libraries which add service API versioning to ASP.NET Web API, OData with ASP.NET Web API, and ASP.NET Core.
Version Downloads Last Updated
11.0.0-preview.3.26207.106 3,636 4/14/2026
11.0.0-preview.2.26159.112 7,395 3/10/2026
11.0.0-preview.1.26104.118 5,612 2/10/2026
10.0.7 465,232 4/21/2026
10.0.6 591,766 4/14/2026
10.0.5 2,901,978 3/12/2026
10.0.4 416,639 3/10/2026
10.0.3 3,543,771 2/10/2026
10.0.2 3,390,050 1/13/2026
10.0.1 3,038,409 12/9/2025
10.0.0 4,136,793 11/11/2025
9.0.15 79,341 4/14/2026
9.0.14 297,021 3/10/2026
9.0.13 406,135 2/10/2026
9.0.12 513,222 1/13/2026
9.0.11 1,914,147 11/11/2025
8.0.26 63,849 4/14/2026
8.0.25 265,730 3/10/2026
8.0.24 340,352 2/10/2026
8.0.23 390,244 1/13/2026
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