An MQTT library for Waspmote's 3G Module

Webcam Control Through Raspberry Pi Using a Skywriter Hat and the MQTT Protocol

MQTT library block written in Siemens SCL for S7-300 PLC with CP343-1

MQTT 3.1.1 (semi-conformant) library in golang

An MQTT bridge to Google Cloud IoT Core

🔁 MQTT library for Arduino that runs WiFi and MQTT in a tight loop, enabling async-like behavior for single-threaded microcontrollers.

Simple MQTT version 3.1.1 library targeted to 32-bit microcontrollers providing a standard C library.

Async Mqtt encoder and decoder for rust.

Message Queuing Telemetry Transport Client 🤖

Build valid and verified MQTT topic.

pytest-mqtt supports testing systems based on MQTT.

An MQTT client written in and for PHP.

Native Nim MQTT client library

Open source Extension SDK for the HiveMQ Enterprise MQTT broker that you can use to extend the broker with custom functionality and integrate the broker with other external systems

wolfMQTT is a small, fast, portable MQTT client implementation, including support for TLS 1.3.