Microsoft.AspNetCore.OpenApi 8.0.20

Prefix Reserved
There is a newer version of this package available.
See the version list below for details.
dotnet add package Microsoft.AspNetCore.OpenApi --version 8.0.20
                    
NuGet\Install-Package Microsoft.AspNetCore.OpenApi -Version 8.0.20
                    
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="8.0.20" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="8.0.20" />
                    
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 8.0.20
                    
#r "nuget: Microsoft.AspNetCore.OpenApi, 8.0.20"
                    
#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@8.0.20
                    
#: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=8.0.20
                    
Install as a Cake Addin
#tool nuget:?package=Microsoft.AspNetCore.OpenApi&version=8.0.20
                    
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/c78f4a816c0c6a978a801a05a31dce9013e099e2

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 (573)

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

Package Downloads
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Package Description

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Core code generation engine and services for Coalesce. Learn more at https://intellitect.github.io/Coalesce/

GitHub repositories (227)

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

Repository Stars
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A reference .NET application implementing an eCommerce site
RicoSuter/NSwag
The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript.
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microsoft/fluentui-blazor
Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications
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Examples and Tutorials of Event Sourcing in .NET
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A C#/.NET library to run LLM (🦙LLaMA/LLaVA) on your local device efficiently.
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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.
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TickerQ is a fast, reflection-free background task scheduler for .NET — built with source generators, EF Core integration, cron + time-based execution, and a real-time dashboard.
MicrosoftLearning/AZ-204-DevelopingSolutionsforMicrosoftAzure
AZ-204: Developing solutions for Microsoft Azure
Version Downloads Last Updated
10.0.0-rc.1.25451.107 18,897 9/9/2025
10.0.0-preview.7.25380.108 15,547 8/12/2025
10.0.0-preview.6.25358.103 10,555 7/15/2025
10.0.0-preview.5.25277.114 17,539 6/6/2025
10.0.0-preview.4.25258.110 12,491 5/12/2025
10.0.0-preview.3.25172.1 9,567 4/10/2025
10.0.0-preview.2.25164.1 6,141 3/18/2025
10.0.0-preview.1.25120.3 5,604 2/25/2025
9.0.9 397,154 9/9/2025
9.0.8 1,353,385 8/5/2025
9.0.7 1,107,789 7/8/2025
9.0.6 1,352,944 6/10/2025
9.0.5 2,462,858 5/13/2025
9.0.4 2,280,208 4/8/2025
9.0.3 1,993,599 3/11/2025
9.0.2 1,982,622 2/11/2025
9.0.1 1,717,279 1/14/2025
9.0.0 4,167,285 11/12/2024
9.0.0-rc.2.24474.3 77,852 10/8/2024
9.0.0-rc.1.24452.1 39,219 9/10/2024
9.0.0-preview.7.24406.2 16,146 8/13/2024
9.0.0-preview.6.24328.4 10,630 7/9/2024
9.0.0-preview.5.24306.11 13,693 6/11/2024
9.0.0-preview.4.24267.6 12,327 5/21/2024
9.0.0-preview.3.24172.13 13,413 4/11/2024
9.0.0-preview.2.24128.4 8,076 3/12/2024
9.0.0-preview.1.24081.5 12,596 2/13/2024
8.0.20 82,500 9/9/2025
8.0.19 384,363 8/4/2025
8.0.18 337,886 7/8/2025
8.0.17 459,574 6/10/2025
8.0.16 528,911 5/13/2025
8.0.15 984,013 4/8/2025
8.0.14 1,026,849 3/11/2025
8.0.13 939,468 2/11/2025
8.0.12 1,118,861 1/14/2025
8.0.11 2,998,519 11/12/2024
8.0.10 4,500,148 10/8/2024
8.0.8 4,894,268 8/13/2024
8.0.7 3,434,172 7/9/2024
8.0.6 4,316,417 5/28/2024
8.0.5 1,675,384 5/14/2024
8.0.4 3,970,091 4/9/2024
8.0.3 3,333,907 3/12/2024
8.0.2 3,054,752 2/13/2024
8.0.1 3,760,503 1/9/2024
8.0.0 6,323,864 11/14/2023
8.0.0-rc.2.23480.2 106,258 10/10/2023
8.0.0-rc.1.23421.29 53,687 9/12/2023
8.0.0-preview.7.23375.9 71,310 8/8/2023
8.0.0-preview.6.23329.11 40,948 7/11/2023
8.0.0-preview.5.23302.2 18,388 6/13/2023
8.0.0-preview.4.23260.4 118,423 5/16/2023
8.0.0-preview.3.23177.8 20,243 4/11/2023
8.0.0-preview.2.23153.2 8,849 3/14/2023
8.0.0-preview.1.23112.2 6,434 2/21/2023
7.0.20 440,010 5/28/2024
7.0.19 148,017 5/14/2024
7.0.18 202,718 4/9/2024
7.0.17 170,130 3/12/2024
7.0.16 261,083 2/13/2024
7.0.15 398,824 1/9/2024
7.0.14 884,601 11/14/2023
7.0.13 1,386,352 10/24/2023
7.0.12 1,112,802 10/10/2023
7.0.11 1,581,239 9/12/2023
7.0.10 2,133,546 8/8/2023
7.0.9 1,876,015 7/11/2023
7.0.8 768,873 6/22/2023
7.0.7 1,204,440 6/13/2023
7.0.5 3,713,451 4/11/2023
7.0.4 1,646,193 3/14/2023
7.0.3 2,097,771 2/14/2023
7.0.2 1,661,136 1/10/2023
7.0.1 1,140,675 12/13/2022
7.0.0 2,082,224 11/7/2022
7.0.0-rc.2.22476.2 30,485 10/11/2022
7.0.0-rc.1.22427.2 26,955 9/14/2022
7.0.0-preview.7.22376.6 11,492 8/9/2022
7.0.0-preview.6.22330.3 9,235 7/12/2022
7.0.0-preview.5.22303.8 11,168 6/14/2022
7.0.0-preview.4.22251.1 8,257 5/10/2022