Welcome to the MQTT mailing list and discussion group.

MQTT is a lightweight publish/subscribe messaging protocol originally developed for sensor applications. MQTT is extremely useful and widely adopted in mobile environments due to the low power consumption, simplicity of API, and small bandwidth used. Clients and servers are available in various languages including C, Python, Erlang, C#, Java etc - see for more information about the protocol and the community around it.

This group is intended to bring together discussions of the protocol and different implementations. Other discussion media exist (for example, individual software implementations may have their own project resources) but this group is for discussion of the protocol and MQTT ecosystem as a whole. Off-topic debates, discussion around alternative protocols, etc. do not belong in this group. Thanks.

Initial posts will need to be moderated by a group administrator before they appear to the community.

Showing 1-20 of 499 topics
nanodemqtt can use authentication Uthen Boonla 4/10/15
MQTT messages store in mysql Why Tea 3/30/15
MQTT noode.js library issue Why Tea 3/29/15
Looking for feedback on MQTT plugin for Ready! API/SoapUI Pro Lorinda Brandon 3/17/15
Question regarding QoS 1&2 for persistent client when offline James 3/17/15
WebSocket connection error from browser (Paho Ecllipse javascript mqtt client) Acinom 3/16/15
RSMB - MQTT-SN Forwarder support Ryan Benoit 3/14/15
How to make access control of user operations Henry John 3/12/15
MQTT-SN Java Gateway and Client now contributed to Paho Ian Craggs 3/9/15
Is there any way to let MQTT server work as a p2p message sender instead of publish/subscriber mode Henry John 3/6/15
How to clean the 'inactive topics' published with mqtt client? Henry John 3/6/15
Web front end to subscribe/publish mqtt message Why Tea 3/5/15
Issue in configuring self-signed SSL on Mosquitto 1.3.5. Ravi G 3/2/15
How to handle crashes/restarts of clients subscribed with QOS > 0? Mojca Miklavec 3/1/15
Hello Mike Partain 2/28/15
Packet ID for Will publish with Qos >= 1 Andrea 2/25/15
MQTT and concurrent connections from Publisher Mahmoud Kamal 2/20/15
is there a "better way" to send commands over mqtt ? (or is not a good practice?) Flavio Piccioni 2/9/15
Why message id only use two bytes? 2/6/15
MQTT on ESP8266 Philippe Gregoire 2/5/15
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