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MQTT API

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

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

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

Topics

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

This example shows how to use a desktop MQTT client to publish to a channel.

Publish Using WebSockets in Python on a Raspberry Pi

This example shows how to use WebSockets on port 80 to publish to a ThingSpeak™ channel using a Raspberry Pi™ board that runs Python®.

Subscribe to Channel Updates Using Desktop MQTT Client

This example shows how to use a desktop MQTT client to subscribe to a channel.

Use Particle Photon Client to Subscribe to Channel Updates

This example shows how to use a Particle Photon board to subscribe to channel updates from the CheerLights channel.

Troubleshooting

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

Featured Examples