VSLee.IEXSharp 2.9.4

.NET Standard 2.0
dotnet add package VSLee.IEXSharp --version 2.9.4
NuGet\Install-Package VSLee.IEXSharp -Version 2.9.4
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="VSLee.IEXSharp" Version="2.9.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add VSLee.IEXSharp --version 2.9.4
#r "nuget: VSLee.IEXSharp, 2.9.4"
#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 VSLee.IEXSharp as a Cake Addin
#addin nuget:?package=VSLee.IEXSharp&version=2.9.4

// Install VSLee.IEXSharp as a Cake Tool
#tool nuget:?package=VSLee.IEXSharp&version=2.9.4


IEX Cloud API for C# and other .net languages. Supports SSE streaming.


This library currently targets netstandard20. Thus, it can be used with .net framework 4.6.1+ or .net core 2.0+


Prereleases are on GH Packages. A new prerelease is built automatically after every commit.

NuGet Badge Releases are on NuGet

IEX Cloud

public IEXCloudClient(string publishableToken, string secretToken, bool signRequest, bool useSandBox,
	APIVersion version = APIVersion.stable, RetryPolicy retryPolicy = RetryPolicy.Exponential)

First, create an instance of IEXCloudClient

// For FREE and LAUNCH users
IEXCloudClient iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: false, useSandBox: false); 

// For SCALE and GROW users
IEXCloudClient iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: true, useSandBox: false); 

// Sandbox
IEXCloudClient iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: false, useSandBox: true); 

To display historical prices. Read more about DateTime in the wiki.

using (var iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: false, useSandBox: false))
	var response = await iexCloudClient.StockPrices.HistoricalPriceAsync("AAPL", ChartRange.OneMonth);
	if (response.ErrorMessage != null)
	   foreach (var ohlc in response.Data)
	      var dt = ohlc.GetTimestampInEST(); // note use of the extension method instead of ohlc.date
	   	  $"{dt} Open: {ohlc.open}, High: {ohlc.high}, Low: {ohlc.low}, Close: {ohlc.close}, Vol: {ohlc.volume}");

To use SSE streaming (only included with paid IEX subscription plans). Extended example in the wiki.

using (var sseClient = iexCloudClient.StockPrices.QuoteStream(symbols: new string[] { "spy", "aapl" }, 
	UTP: false, interval: StockQuoteSSEInterval.OneSecond))
	sseClient.Error += (s, e) =>
		Console.WriteLine("Error Occurred. Details: {0}", e.Exception.Message);
	sseClient.MessageReceived += m =>
	await sseClient.StartAsync(); // this will block until Stop() is called

Additional usage examples are illustrated in the test project: IEXSharpTest


IEX has deprecated most of their legacy API. However, some functions are still active and you can access them via:

IEXLegacyClient iexLegacyClient = new IEXLegacyClient();


We welcome pull requests! See CONTRIBUTING.md.


License: MIT


Data provided for free by IEX via their IEX Cloud API Per their guidelines:

  • Required: If you display any delayed price data, you must display “15 minute delayed price” as a disclaimer.
  • Required: If you display latestVolume you must display “Consolidated Volume in Real-time” as a disclaimer.
  • Required: If you use cash flow, income statement, balance sheet, financials, or fundamentals endpoints, use must display “Data provided by New Constructs, LLC © All rights reserved.”
  • Note on pricing data: All CTA and UTP pricing data is delayed at least 15 minutes.

This project is not related to the similarly named IEX-Sharp


Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48 net481
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
2.9.4 1,539 8/14/2022
2.9.3 741 5/25/2022
2.9.2 1,144 4/23/2022
2.9.1 376 4/14/2022
2.9.0 3,703 5/20/2021
2.8.0 795 4/14/2021
2.7.0 2,080 3/4/2021
2.6.0 502 2/1/2021
2.5.0 2,477 12/28/2020
2.4.8 573 12/3/2020
2.4.7 2,981 10/15/2020
2.4.6 328 10/15/2020
2.4.5 405 10/14/2020
2.4.4 314 10/14/2020
2.4.3 459 10/11/2020
2.4.2 405 10/10/2020
2.4.1 506 10/10/2020
2.4.0 401 10/10/2020
2.3.0 846 9/12/2020
2.2.0 751 7/21/2020
2.1.0 1,510 6/4/2020
2.0.0 608 5/10/2020
1.2.0 682 3/24/2020
1.1.0 3,392 11/24/2019