PCSC 6.2.0

dotnet add package PCSC --version 6.2.0                
NuGet\Install-Package PCSC -Version 6.2.0                
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="PCSC" Version="6.2.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add PCSC --version 6.2.0                
#r "nuget: PCSC, 6.2.0"                
#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 PCSC as a Cake Addin
#addin nuget:?package=PCSC&version=6.2.0

// Install PCSC as a Cake Tool
#tool nuget:?package=PCSC&version=6.2.0                

PC/SC wrapper classes for .NET


The pcsc-sharp library is wrapper that provides access to the Personal Computer/Smart Card Resource Manager using the system's native PC/SC API. It implements partial ISO7816 support and is written to run on both Windows and Unix (.Net Core or Mono using PCSC Lite).

pcsc-sharp is not a fully featured library for accessing vendor specific protocols. You must implement those protocols / applications yourself. For example: You can use pcsc-sharp to access NXP's Mirfare RFID chips, but pcsc-sharp does not provide any APDUs to request KEYs, authorize, etc.

pcsc-sharp does not contain any device drivers. A PC/SC compliant reader + driver is mandatory.

The GitHub issue tracker is not a support forum. Please contact your vendor for reader or card specific questions.

You can find PC/SC specific documentation here:

Supported Operating systems

  • Windows (winscard.dll)

    • Windows 11 64-bit
    • Windows 10 64-bit Professional
    • Windows 10 32-bit Professional
    • Windows 7 64-bit
    • Windows 7 32-bit
  • Linux (PC/SC lite)

    • Ubuntu Linux 64-bit
    • Ubuntu Linux 32-bit
  • MacOS X

  • Raspberry Pi / Linux ARM

    • linux-arm

Quick start

Establish the resource manager context

Each operation requires a valid context. See SCardEstablishContext for more information.

var contextFactory = ContextFactory.Instance;
using (var context = contextFactory.Establish(SCardScope.System)) {
   // your code

Basic rules / best practices:

  • One context per smartcard / reader.
  • One context per SCardMonitor.
  • The context must be disposed of after usage to free system resources.
  • The context must not be disposed of if your application still accesses the smartcard / reader.

List all connected smartcard readers

See SCardListReaders.

var contextFactory = ContextFactory.Instance;
using (var context = contextFactory.Establish(SCardScope.System)) {
    Console.WriteLine("Currently connected readers: ");
    var readerNames = context.GetReaders();
    foreach (var readerName in readerNames) {
        Console.WriteLine("\t" + readerName);

Send ISO7816 APDUs

var contextFactory = ContextFactory.Instance;
using (var ctx = contextFactory.Establish(SCardScope.System)) {
    using (var isoReader = new IsoReader(ctx, "ACME Smartcard reader", SCardShareMode.Shared, SCardProtocol.Any, false)) {

        var apdu = new CommandApdu(IsoCase.Case2Short, isoReader.ActiveProtocol) {
            CLA = 0x00, // Class
            Instruction = InstructionCode.GetChallenge,
            P1 = 0x00, // Parameter 1
            P2 = 0x00, // Parameter 2
            Le = 0x08 // Expected length of the returned data

        var response = isoReader.Transmit(apdu);
        Console.WriteLine("SW1 SW2 = {0:X2} {1:X2}", response.SW1, response.SW2);
        // ..

Read reader attributes

using (var ctx = ContextFactory.Instance.Establish(SCardScope.System)) {
    using (var reader = ctx.ConnectReader("OMNIKEY CardMan 5x21 0", SCardShareMode.Shared, SCardProtocol.Any)) {
        var cardAtr = reader.GetAttrib(SCardAttribute.AtrString);
        Console.WriteLine("ATR: {0}", BitConverter.ToString(cardAtr));

Monitor reader events

var monitorFactory = MonitorFactory.Instance;
var monitor = monitorFactory.Create(SCardScope.System);

// connect events here..
monitor.StatusChanged += (sender, args) =>
    Console.WriteLine($"New state: {args.NewState}");

monitor.Start("OMNIKEY CardMan 5x21-CL 0");

Console.ReadKey(); // Press any key to exit


More example code

Checkout the Examples directory.

Build from source

Build status

Required software

Build tools

  • Fake, Please run:

    dotnet tool install fake-cli -g

    to install fake as global tool. On Linux you may have to add the following lines into your .profile or .bashrc file:

    if [ -d "$HOME/.dotnet/tools" ] ; then

pcsc-sharp uses the FAKE DSL for build tasks. To build the solution, run fake run build.fsx.

Build instructions for Raspberry Pi

Compile with

dotnet publish -r linux-arm
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 is compatible.  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 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. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  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 tizen40 was computed.  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.
  • .NETStandard 2.0

    • No dependencies.
  • net6.0

    • No dependencies.
  • net7.0

    • No dependencies.
  • net8.0

    • No dependencies.

NuGet packages (11)

Showing the top 5 NuGet packages that depend on PCSC:

Package Downloads

Implements partial ISO7816 support (APDU etc.) for PCSC.


ArsMagna RFID services


Reactive extensions for PC/SC. Observables from smart card monitor events.




Thailand National ID Smart card Helper

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on PCSC:

Repository Stars
ThaiNational IDCard(Smartcard) helper
Version Downloads Last updated
6.2.0 30,242 12/30/2023
6.1.3 49,275 12/19/2022
6.1.2 5,241 12/1/2022
6.1.1 1,140 12/1/2022
6.1.0 1,102 11/30/2022
6.0.0 37,245 3/9/2022
5.1.0 26,761 12/6/2021
5.0.0 135,287 12/7/2019
4.2.0 24,935 7/3/2019
4.1.1 3,101 5/26/2019
4.1.0 1,466 5/26/2019
4.0.3 4,731 2/18/2019
4.0.2 3,828 2/4/2019
4.0.1 8,442 9/24/2018
4.0.0 77,945 2/25/2018
3.8.0 48,199 10/8/2017
3.7.0 10,192 6/22/2017
3.6.1 15,538 4/12/2017
3.6.0 12,652 11/18/2016
3.5.3 2,232 11/3/2016
3.5.2 1,319 11/2/2016
3.5.1 18,338 5/24/2016
3.5.0 6,814 4/19/2016
3.4.1 2,292 3/5/2016
3.4.0 1,373 2/11/2016
3.3.1 1,861 1/21/2016
3.3.0 2,484 10/28/2015
3.2.0 2,545 7/31/2015
3.1.0 1,616 7/12/2013
3.0.0 1,593 5/20/2013