Microsoft.AspNetCore.OpenApi 8.0.29

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There is a newer version of this package available.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 8.0.29
                    


                    

                
NuGet\Install-Package Microsoft.AspNetCore.OpenApi -Version 8.0.29
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="8.0.29" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="8.0.29" />
                    


                            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 8.0.29
                    


                    

                
#r "nuget: Microsoft.AspNetCore.OpenApi, 8.0.29"
#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@8.0.29
#: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=8.0.29
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Microsoft.AspNetCore.OpenApi&version=8.0.29
                    


                            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/03ef277b368eb3b02122ca62f97d155845cfd5fa

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 (976)

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.
Umbraco.Cms

Installs Umbraco CMS with all default dependencies in your ASP.NET Core project.
Rystem.Api

Rystem.Api helps you to integrate Api Server and Automated Client for Aspect-Oriented programming.
Umbraco.Cms.StaticAssets

Contains the static assets needed to run Umbraco CMS.
Umbraco.Cms.Api.Common

Contains the bits and pieces that are shared between the Umbraco CMS APIs.

GitHub repositories (297)

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
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A reference .NET application implementing an eCommerce site
dodyg/practical-aspnetcore
Practical samples of ASP.NET Core 11, 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 analyze game 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 + React Client) with Multitenancy Support, and Clean/Modular Architecture that saves roughly 200+ Development Hours! All Batteries Included.
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Aspire is the tool for code-first, extensible, observable dev and deploy.
FastEndpoints/FastEndpoints
A light-weight REST API development framework for ASP.NET 8 and newer.
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
umbraco/Umbraco-CMS
Umbraco is a free and open source .NET content management system helping you deliver delightful digital experiences.
microsoft/fluentui-blazor
Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications
dotnet/skills
Repository for skills to assist AI coding agents with .NET and C#
thomhurst/TUnit
A modern, fast and flexible .NET testing framework
oskardudycz/EventSourcing.NetCore
Examples and Tutorials of Event Sourcing in .NET
martinothamar/Mediator
A high performance implementation of Mediator pattern in .NET using source generators.
dotnet/maui-samples
Samples for .NET Multi-Platform App UI (.NET MAUI)
Version Downloads Last Updated
11.0.0-preview.6.26359.118 1,414 7/14/2026
11.0.0-preview.5.26302.115 25,345 6/9/2026
11.0.0-preview.4.26230.115 10,488 5/12/2026
11.0.0-preview.3.26207.106 12,300 4/14/2026
11.0.0-preview.2.26159.112 8,849 3/10/2026
10.0.10 190,037 7/14/2026
10.0.9 3,894,339 6/9/2026
10.0.8 3,977,382 5/12/2026
10.0.7 4,517,575 4/21/2026
10.0.6 1,417,926 4/14/2026
10.0.5 4,998,731 3/12/2026
9.0.18 10,500 7/14/2026
9.0.17 184,927 6/9/2026
9.0.16 233,422 5/12/2026
9.0.15 365,571 4/14/2026
9.0.14 540,453 3/10/2026
8.0.29 11,556 7/14/2026
8.0.28 203,480 6/9/2026
8.0.27 235,318 5/12/2026
8.0.26 312,736 4/14/2026
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