Quick Answer: Is MQTT UDP Or TCP?

Who uses MQTT?

51 companies reportedly use MQTT in their tech stacks, including doubleSlash, energy2market, and Ubidreams.doubleSlash.energy2market.Ubidreams.Tillhub GmbH.Pubu.Nina.Workerbase.GAPO..


Built on top of the TCP/IP stack, MQTT (Message Queue Telemetry Transport) has become the standard for IoT communications. MQTT can also run on SSL/TLS, which is a secure protocol built on TCP/IP, to ensure that all data communication between devices are encrypted and secure.

Does MQTT use HTTP?

MQTT is data centric whereas HTTP is document-centric. HTTP is request-response protocol for client-server computing and not always optimized for mobile devices.

What is MQTT protocol in IoT?

MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol that was developed by IBM and first released in 1999. It uses the pub/sub pattern and translates messages between devices, servers, and applications.


MQTT is a machine-to-machine (M2M)/Internet of Things (IoT) connectivity protocol and is the de facto communication protocol for IoT. While you could use HTTP(S) on an IoT device, it is pull-based only, while MQTT is push-based (actually subscribe/publish).

Does WhatsApp use MQTT?

Axiom is a python program that connects to a mqtt server and provides an interface to the WhatsApp messaging service.

Can MQTT work without Internet?

A. Yes, MQTT may work without internet. See, it only need an IP network because it uses TCP/IP for communication between the subscriber or publisher and the broker. An IP network doesn’t mean you need the internet access.


Although MQTT-SN uses UDP as the transport protocol and not TCP it is designed, as far as possible., to work in the same way as MQTT. In that regard MQTT-SN usually requires a connection to the broker before it can send and receive messages.

What port does MQTT use?

Service Name and Transport Protocol Port Number RegistryService NamePort NumberTransport Protocolmqtt1883tcpmqtt1883udpsecure-mqtt8883tcpsecure-mqtt8883udp3 more rows