Node.js Client SDK

Version: 2.0.0

Released on Oct 22, 2021


The MQTT.Cool Node.js Client is a JavaScript library for the development of MQTT.Cool clients running on the Node.js runtime.

The library enables JavaScript applications to act as MQTT clients; that is, ready to send and receive real-time MQTT messages to/from any MQTT broker connected to the MQTT.Cool server.


Compatible with MQTT.Cool Server since 1.1.0.
Based on Lightstreamer SDK for Node.js Clients version 8.0.3 build 1787.


The library is available as npm package, so you can download and install it through:

$ npm install



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