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Use the MQTT API to update ThingSpeak™ channels

The ThingSpeak IoT platform enables clients to update and receive updates from channel feeds via the ThingSpeak MQTT broker. MQTT is a publish/subscribe communication protocol that uses TCP/IP sockets or WebSockets. MQTT over WebSockets can be secured with SSL. A client device connects to the MQTT broker and can publish to a channel or subscribe to updates from that channel.

To get started with the MQTT API, see: MQTT Basics. For client configuration information for your specific library, see MQTT library configuration.


Publish to a Channel FeedPublish message to update multiple channel fields simultaneously
Publish to a Channel Field FeedPublish message to update single channel field


Subscribe to a Channel FeedSubscribe to updates from a channel feed with MQTT
Subscribe to a Channel Field FeedSubscribe to channel updates from a particular field of a channel with MQTT


MQTT Basics

Learn about the publish/subscribe architecture for connecting bandwidth and power-constrained devices over wireless networks.

Choose Between REST API and MQTT API

Learn when to use REST and MQTT to update a channel.

Publish to a Channel Using Desktop MQTT Client

Publish to a channel using desktop MQTT client such as MQTT.fx.

Publish to a Channel Using Arduino Client

Publish data to a ThingSpeak channel using an Arduino® device.

Publish Using Particle Photon Client

Publish data to a ThingSpeak channel using a Particle Photon device.

Publish Using Websockets in Python on a Raspberry Pi

Publish data using WebSockets to a ThingSpeak channel.

Subscribe to Channel Updates Using Desktop MQTT Client

Subscribe to channel updates from a ThingSpeak channel using desktop MQTT.

Subscribe to Channel Updates Using Particle Photon Client

Subscribe to a ThingSpeak channel using a Particle Photon device.

Remote Sensor Control Using MQTT Publish and Subscribe

Servo control using MQTT subscribe and MQTT publish for network strength measurement


Troubleshoot MQTT Publish

Get help to resolve common mistakes when using MQTT publish.

Troubleshoot MQTT Subscribe

Common mistakes and problem resolution for subscribing to ThingSpeak