Arad.Message.Broker.MQTT 1.0.0

.NET Standard 1.3 .NET Framework 4.5.2
NuGet\Install-Package Arad.Message.Broker.MQTT -Version 1.0.0
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.
dotnet add package Arad.Message.Broker.MQTT --version 1.0.0
<PackageReference Include="Arad.Message.Broker.MQTT" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Arad.Message.Broker.MQTT --version 1.0.0
#r "nuget: Arad.Message.Broker.MQTT, 1.0.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Arad.Message.Broker.MQTT as a Cake Addin
#addin nuget:?package=Arad.Message.Broker.MQTT&version=1.0.0

// Install Arad.Message.Broker.MQTT as a Cake Tool
#tool nuget:?package=Arad.Message.Broker.MQTT&version=1.0.0


Arad Message Broker is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from



  • Async support
  • TLS 1.2 support for client and server (but not UWP servers)
  • Extensible communication channels (e.g. In-Memory, TCP, TCP+TLS, WS)
  • Lightweight (only the low level implementation of MQTT, no overhead)
  • Performance optimized
  • Uniform API across all supported versions of the MQTT protocol
  • Interfaces included for mocking and testing
  • Access to internal trace messages
  • No external dependencies


  • Communication via TCP (+TLS) or WS (WebSocket) supported
  • Included core LowLevelMqttClient with low level functionality
  • Also included ManagedMqttClient which maintains the connection and subscriptions automatically. Also application messages are queued and re-scheduled for higher QoS levels automatically.
  • Rx support (via another project)
  • Compatible with Microsoft Azure IoT Hub

Server (broker)

  • List of connected clients available
  • Supports connected clients with different protocol versions at the same time
  • Able to publish its own messages (no loopback client required)
  • Able to receive every message (no loopback client required)
  • Extensible client credential validation
  • Retained messages are supported including persisting via interface methods (own implementation required)
  • WebSockets supported (via ASP.NET Core 2.0, separate nuget)
  • A custom message interceptor can be added which allows transforming or extending every received application message
  • Validate subscriptions and deny subscribing of certain topics depending on requesting clients
  • Connect clients with different protocol versions at the same time.

Arad Message Broker Server

AradMessageBrokerServer_ is a standalone cross platform MQTT server (like mosquitto) basing on this library. It has the following features.

  • Running portable (no installation required)
  • Runs und Windows, Linux, macOS, Raspberry Pi
  • Python scripting support for manipulating messages, validation of clients, building business logic etc.
  • Supports WebSocket and TCP (with and without TLS) connections
  • Provides a HTTP based API (including Swagger endpoint)
  • Extensive configuration parameters and customization supported

Supported frameworks

  • .NET Standard 1.3+
  • .NET Core 1.1+
  • .NET Core App 1.1+
  • .NET Framework 4.5.2+ (x86, x64, AnyCPU)
  • Mono 5.2+
  • Universal Windows Platform (UWP) 10.0.10240+ (x86, x64, ARM, AnyCPU, Windows 10 IoT Core)
  • Xamarin.Android 7.5+
  • Xamarin.iOS 10.14+
  • Blazor WebAssembly 3.2.0

Supported MQTT versions

  • 5.0.0
  • 3.1.1
  • 3.1.0
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
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net452 net46 net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Universal Windows Platform uap uap10.0
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

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Version Downloads Last updated
1.0.0 280 10/25/2020