Adafruit IO

Adafruit IO MQTT API

MQTT broker at io.adafruit.com for publish/subscribe access to Adafruit IO feeds and groups. TLS on port 8883, plaintext on 1883, and MQTT-over-WebSocket on port 443. Authenticate with your Adafruit IO username and API key. Supports QoS 0 and QoS 1 (QoS 2 not supported); MQTT retain flag is not honored — use the /get topic modifier to fetch the last value of a feed instead. Topic structure includes feed topics ({username}/feeds/{key}), compact aliases ({username}/f/{key}), JSON/CSV suffixes, group topics ({username}/groups/{key}), throttle ({username}/throttle), and errors ({username}/errors). Wildcard subscriptions with `+` and `#` are supported for feed discovery.

Documentation GitHub

Documentation

https://io.adafruit.com/api/docs/mqtt.html

https://io.adafruit.com/api/docs/mqtt.html#mqtt-topics

Other Resources

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/apis.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-attach-feed-to-group-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-batch-ingest-and-chart-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-build-dashboard-with-block-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-create-and-verify-trigger-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-ensure-feed-exists-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-group-feed-bootstrap-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-group-multifeed-publish-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-issue-and-verify-token-workflow.yml

https://raw.githubusercontent.com/api-evangelist/adafruit-io/refs/heads/main/arazzo/adafruit-io-provision-feed-and-seed-data-workflow.yml

API entry from apis.yml

aid: adafruit-io:adafruit-io-mqtt-api
name: Adafruit IO MQTT API
tags:
- IoT
- Internet of Things
- MQTT
- Realtime
- Feeds
humanURL: https://io.adafruit.com/api/docs/mqtt.html
baseURL: mqtts://io.adafruit.com:8883
properties:
- url: https://io.adafruit.com/api/docs/mqtt.html
  type: Documentation
- url: https://io.adafruit.com/api/docs/mqtt.html#mqtt-topics
  type: Documentation
description: MQTT broker at io.adafruit.com for publish/subscribe access to Adafruit IO feeds and groups.
  TLS on port 8883, plaintext on 1883, and MQTT-over-WebSocket on port 443. Authenticate with your Adafruit
  IO username and API key. Supports QoS 0 and QoS 1 (QoS 2 not supported); MQTT retain flag is not honored
  — use the /get topic modifier to fetch the last value of a feed instead. Topic structure includes feed
  topics ({username}/feeds/{key}), compact aliases ({username}/f/{key}), JSON/CSV suffixes, group topics
  ({username}/groups/{key}), throttle ({username}/throttle), and errors ({username}/errors). Wildcard
  subscriptions with `+` and `#` are supported for feed discovery.