# ThingSpeak MQTT API

**Canonical:** https://apis.io/apis/thingspeak/thingspeak-mqtt-api/  
**Provider:** ThingSpeak — https://apis.io/providers/thingspeak/  
**Base URL:** mqtt3.thingspeak.com  
**Documentation:** https://www.mathworks.com/help/thingspeak/mqtt-api.html

ThingSpeak MQTT API is one of 12 APIs that [ThingSpeak](https://apis.io/providers/thingspeak/) publishes on the [APIs.io](https://apis.io/) network, described by an AsyncAPI event-driven specification. Tagged areas include IoT, MQTT, Pub-Sub, and Real-Time. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Lightweight pub/sub MQTT broker at `mqtt3.thingspeak.com` over TCP (1883), TLS (8883), WebSocket (80), and secure WebSocket (443, path `/mqtt`). Publish to `channels/{channelID}/publish` and subscribe via `channels/{channelID}/subscribe/fields/field{n}/{readAPIKey}`. QoS 0 only; connections time out after one hour of inactivity. Devices use MQTT-specific Client ID / Username / Password credentials provisioned in ThingSpeak.

## Machine-readable artifacts (3)

- **Documentation** — https://www.mathworks.com/help/thingspeak/mqtt-api.html
- **Documentation** — https://www.mathworks.com/help/thingspeak/mqtt-basics.html
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/thingspeak/refs/heads/main/asyncapi/thingspeak-mqtt-asyncapi.yml

## Other ThingSpeak APIs (11)

- [ThingSpeak Channels API](https://apis.io/apis/thingspeak/thingspeak-channels-api/)
- [ThingSpeak Update API](https://apis.io/apis/thingspeak/thingspeak-update-api/)
- [ThingSpeak React API](https://apis.io/apis/thingspeak/thingspeak-react-api/)
- [ThingSpeak Alerts API](https://apis.io/apis/thingspeak/thingspeak-alerts-api/)
- [ThingSpeak Charts API](https://apis.io/apis/thingspeak/thingspeak-charts-api/)
- [ThingSpeak MATLAB Analysis API](https://apis.io/apis/thingspeak/thingspeak-matlab-analysis-api/)
- [ThingSpeak MATLAB Visualization API](https://apis.io/apis/thingspeak/thingspeak-matlab-visualization-api/)
- [ThingSpeak ThingHTTP API](https://apis.io/apis/thingspeak/thingspeak-thinghttp-api/)
- [ThingSpeak TimeControl API](https://apis.io/apis/thingspeak/thingspeak-timecontrol-api/)
- [ThingSpeak Channels.json API](https://apis.io/apis/thingspeak/thingspeak-channels-json-api/)
- [ThingSpeak Talkbacks API](https://apis.io/apis/thingspeak/thingspeak-talkbacks-api/)

## Tags

IoT, MQTT, Pub-Sub, Real-Time

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/thingspeak/thingspeak-mqtt-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/thingspeak/.