ExtendedYouTubeAPI 1.0.3

There is a newer version of this package available.
See the version list below for details.
dotnet add package ExtendedYouTubeAPI --version 1.0.3
NuGet\Install-Package ExtendedYouTubeAPI -Version 1.0.3
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="ExtendedYouTubeAPI" Version="1.0.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add ExtendedYouTubeAPI --version 1.0.3
#r "nuget: ExtendedYouTubeAPI, 1.0.3"
#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.
// Install ExtendedYouTubeAPI as a Cake Addin
#addin nuget:?package=ExtendedYouTubeAPI&version=1.0.3

// Install ExtendedYouTubeAPI as a Cake Tool
#tool nuget:?package=ExtendedYouTubeAPI&version=1.0.3


Nuget License: GPL v3 Platforms

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C# library which is used to extend the abilities of YouTube API v3


  • DASH manifests generation for videos
  • HLS livestreams URLs extraction
  • User's history management (list, add, delete, update)
  • Watch later playlist management (list, add, delete)
  • Video captions retrieval
  • User's recommendations listing
  • User's subscriptions videos listing
  • Videos' URLs retrieval
  • UWP authorization helpers

Get started

  • Download and install package from NuGet

Authorization (UWP)

using System;
using Google.Apis.Auth.OAuth2;
using YouTube.Authorization;
using Windows.Security.Authentication.Web;


ClientSecrets secrets = new ClientSecrets	// Initialize your project secrets
	ClientId = "%CLIENT_ID%",
	ClientSecret = "%CLIENT_SECRET%"

string[] scopes = new string[]			// Define scopes you wanna access

Uri requestString = AuthorizationHelpers.FormQueryString(secrets, scopes);	// Generate authorization link

WebAuthenticationResult result = await WebAuthenticationBroker.AuthenticateAsync(WebAuthenticationOptions.UseTitle, requestString, AuthorizationHelpers.Endpoint);	// Call authentication broker with generated query string and predefined endpoint. WebAuthenticationOptions.UseTitle is required

if (result.ResponseStatus == WebAuthenticationStatus.Success)	// Process response
	string successCode = AuthorizationHelpers.ParseSuccessCode(result.ResponseData);	// Retrieve success code
	YouTube.Authorization.UserCredential credential = await AuthorizationHelpers.ExchangeToken(ClientSecrets, successCode);	// Excahnge success token for UserCredential
	// Use UserCredential to create YouTube.ExtendedYouTubeService

	// Save refresh token for future use. Recommended way: PasswordVault
	PasswordVault passwordVault = new PasswordVault();
	PasswordCredential tokenData = new PasswordCredential("%ANY_ID%", "%AUTHORIZED_USER_ID%", credential.Token.RefreshToken)

	// Update stored refresh token on renew
	credential.RefreshTokenUpdated += (s, e) =>
		tokenData.Password = credential.Token.RefreshToken
	// Do something

Service retrieval

using YouTube;
using YouTube.Authorization;
using Google.Apis.Services;


YouTubeExtendedService GetService(UserCredential credential = null)
	BaseClientService.Initializer initializer = new BaseClientService.Initializer
		ApplicationName = "%APP_NAME%",
		ApiKey = "%API_KEY%",		// In case there's no UserCredential and usage is anonymous
		HttpClientInitializer = credential

	ExtendedYouTubeService service = new ExtendedYouTubeService(initializer);

	returnt service

DASH manifest retrieval

using YouTube;
using YouTube.Models;
using System.Collections.Generic;
using Windows.Media.Playback;


ExtendedYouTubeService service = new ExtendedYouTubeService();	// Get the Service
var request = service.DashManifests.List("%VIDEO_ID%");
// request.Id = "%VIDEO_ID%";	// Change video ID after request initialization

IReadOnlyList<DashManifest> manifests = await request.ExecuteAsync();	// Execute request. There will be manifests for all available qualities, including "Auto"

// DashManifest.Label - Quality label
// DashManifest.ValidUntil - After this date URLs in the manifest will be invalid
// DashManifest.Xml - XmlDocument instance of the manifest

Uri manifestUri = manifests[0].WriteManifest(TempFileStream);	// Save manifest to temporary file to access it with MediaPlayer


// Play video with manifest
MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.Source = MediaSource.CreateFromUri(manifestUri);

Other data

Other resources are retrieved pretty much the same as in the vanilia library


  • Create API Reference page
  • Document code
  • Setup CI/CD
  • Add more tests
  • Implement user history management
  • Implement search history management
  • Implement video recommendations/subscirptions listing

Special thanks


©2020 Michael "XFox" Gordeev

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  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. 
.NET Core netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
.NET Framework net461 is compatible.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

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Version Downloads Last updated
1.0.4 541 9/13/2020
1.0.3 420 5/10/2020