Protocol Specifications

There are two main specifications for MQTT:

• MQTT v3.1 specification – the primary MQTT specification is available, for royalty-free implementation, on IBM developerWorks. This protocol enables a publish/subscribe messaging model in an extremely lightweight way. It is useful for connections with remote locations where a small code footprint is required and/or network bandwidth is at a premium. Also in Chinese.
• MQTT-S v1.2 specification – MQTT for Sensors is aimed at embedded devices on non-TCP/IP networks, such as Zigbee. MQTT-S is a publish/subscribe messaging protocol for wireless sensor networks (WSN), with the aim of extending the MQTT protocol beyond the reach of TCP/IP infrastructure for Sensor and Actuator solutions. Read more about it at the IBM Zurich Research website.

Using MQTT

• Developing Applications for WebSphere MQ Telemetry in the WebSphere MQ InfoCenter
• Using WebSphere MQ Telemetry and Pachube to connect to remote sensors and devices
• Using MQTT with Android (Chinese, IBM developerWorks)
• Using MQ Telemetry Transport with WebSphere Business Integration Message Broker
• Using the IBM Lotus Expeditor micro broker MQTT client to publish messages

For language-specific API information, contact the authors of the individual client APIs (listed on the Software page).

If you have a tutorial or guide you think could be added to this list, please let us know!