[rhodin]

We run a hosted version starting at $5/month [0]. We used to have a free version but it was too popular.

[0] https://www.cloudmqtt.com/plans.html

[jayzym]

We use this for work and it's a pretty slick product. Please add support for MQTT 5.0, or shared subscriptions!

[jasonvorhe]

In case someone's looking for a free MQTT service with the only constraints being client connection limits and bandwidth, check out HiveMQ Cloud: https://hivemq.cloud

[pmx]

We use cloudmqtt at work and we've been really impressed by the price and quality of the product. You made it not worth hosting our own instance!

[jshier]

The free version was a great resource while developing MQTT clients a few years ago, sorry it was too expensive.

[rhodin]

If you are a library developer/maintainer we'd be happy to sponsor you with free subscriptions, contact us at [e-mail].