MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker) and supports v3.1.0, v3.1.1 and v5.0.0 of the MQTT protocol.
M2Mqtt is a MQTT client available for all .Net platform (.Net Framework, .Net Compact Framework and .Net Micro Framework) and WinRT platform (Windows 8.1 and Windows Phone 8.1) for M2M communication.
MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker) and supports v3.1.0, v3.1.1 and v5.0.0 of the MQTT protocol.
uPLibrary is an helper library composed of managed drivers for common hardware that you can interface to your .Net Micro Framework board and some other useful components
DeviceHive turns any connected device into the part of Internet of Things. It provides the communication layer, control software and multi-platform libraries to bootstrap development of smart energy, home automation, remote sensing, telemetry, remote control and monitoring software and much more.