LemonMarketsApiSharp 1.0.1-alpha

This is a prerelease version of LemonMarketsApiSharp.
dotnet add package LemonMarketsApiSharp --version 1.0.1-alpha
NuGet\Install-Package LemonMarketsApiSharp -Version 1.0.1-alpha
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="LemonMarketsApiSharp" Version="1.0.1-alpha" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add LemonMarketsApiSharp --version 1.0.1-alpha
#r "nuget: LemonMarketsApiSharp, 1.0.1-alpha"
#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 LemonMarketsApiSharp as a Cake Addin
#addin nuget:?package=LemonMarketsApiSharp&version=1.0.1-alpha&prerelease

// Install LemonMarketsApiSharp as a Cake Tool
#tool nuget:?package=LemonMarketsApiSharp&version=1.0.1-alpha&prerelease


A C# wrapper around the Lemon Markets Stocks & ETF API (https://docs.lemon.markets/)


Get the latest version from nuget.org<br> NuGet NuGet

Supported Endpoints

Endpoint Implemented Tests available


Some usage examples.

Create a client

In order to create a LemonMarketsClient you either can create a new instance of it, or yous the LemonMarketsConnectionBuilder.

const string api = "demo";
 LemonMarketsClient client = new LemonMarketsClient.LemonMarketsConnectionBuilder()
  .WithMarketTrading()       // The api has an endpoint for trading and market data api. Use one instance per api you want to use
  .WithApiKey(apiKey: api)   // Keep in mind that you need different api keys for marketdata and trading
// Make sure that you check if the server is online first, otherwise no requests will work!
await client.CheckOnlineAsync();


Search instruments

The api works with ISIN (International Securities Identification Number). Most known stocks symbols are available with the LemonMarketsSymbols struct. However, you also can search the api.

var searchResult = await client.GetInstrumentsAsync("", "BASF");
var results = searchResult.Results; // Holds the results of the search

For missing default symbols, you can commit to the LemonMarketsSymbols struct file.

Get Venues

var venues = await client.GetVenuesAsync();
var result = venues.Result; // Will hold the found venues

Get Quotes

var quotes = await client.GetQuotesAsync(LemonMarketsSymbols.BASF);
var result = quotes.Result; // Will hold the found quotes

Get OHLC (Open, High, Low, Close)

var ohlc = await client.GetOHLCAsync(LemonMarketsSymbols.BASF, LemonMarketsIntervals.PerDay);
var result = ohlc.Result; // Will hold the result

Get Trades

var trades = await client.GetTradesAsync(LemonMarketsSymbols.BASF);
var result = trades.Result; // Will hold the trades

Trading (Paper and LiveTrading)

With the trading enpoint fetch account infos, bank statements and documents. Moreover you can manage orders, withdrawals and many more.

LemonMarketsAccountInfoRespone accountInfo = await client.GetAccountInformationAsync();

Please visit the UnitTests for more examples.


With LiveStreaming you can subscribe to events. This feature uses the Ably .NET Nuget (https://github.com/ably/ably-dotnet), which is mandatory.


        LemonMarketsClient client = new LemonMarketsClient.LemonMarketsConnectionBuilder()
            .WithApiKey(apiKey: api_trading)
        client.Error += (sender, args) =>
            if (args is UnhandledExceptionEventArgs unhandled)
        await client.CheckOnlineAsync();

        var auth = await client.LiveStreamAuthAsync();

        AblyRealtime ably = client.SetupRealtimeLiveStreamConnection(auth);

        List<string> subscribedIsins = new List<string>()
            "US64110L1061", // Netflix
            "US88160R1014", // Tesla

        ably = await client.SubscribeMessagesAsync(ably, auth, (msg) =>
            Debug.WriteLine($"Message: {msg.Name} => {msg.Data}");
        }, subscribedIsins);

        ably = client.SetupMessagingChannel(ably, auth.UserId, (msg) =>
            Debug.WriteLine($"Message: {msg.Name} => {msg.Data}");
        CancellationTokenSource cts = new CancellationTokenSource(new TimeSpan(0, 30, 0));
            await Task.Delay(1000);
        while (!cts.IsCancellationRequested);
catch (Exception exc)
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  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. 
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. 
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Version Downloads Last updated
1.0.1-alpha 139 10/18/2022
1.0.0-alpha 95 9/29/2022