# MQTT

**Canonical:** https://apis.io/apis/events/mqtt/  
**Provider:** Events — https://apis.io/providers/events/  
**Documentation:** https://mqtt.org

MQTT is one of 18 APIs that [Events](https://apis.io/providers/events/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Protocol, IoT, Pub-Sub, and OASIS.

OASIS standard messaging protocol for the Internet of Things. Lightweight publish/subscribe transport for remote, constrained devices. Current version is MQTT 5.0 (predecessors 3.1, 3.1.1). Three QoS levels (0 at most once, 1 at least once, 2 exactly once), retained messages, last-will, persistent sessions, MQTT over WebSockets, TLS, and OAuth / JWT authentication. MQTT-SN targets very constrained networks.

## Machine-readable artifacts (2)

- **Portal** — https://mqtt.org
- **Specification** — https://docs.oasis-open.org/mqtt/mqtt/v5.0/mqtt-v5.0.html

## Other Events APIs (12)

- [CloudEvents](https://apis.io/apis/events/cloudevents/)
- [AsyncAPI](https://apis.io/apis/events/asyncapi/)
- [Apache Kafka](https://apis.io/apis/events/apache-kafka/)
- [Apache Pulsar](https://apis.io/apis/events/apache-pulsar/)
- [NATS](https://apis.io/apis/events/nats/)
- [Redpanda](https://apis.io/apis/events/redpanda/)
- [IBM MQ](https://apis.io/apis/events/ibm-mq/)
- [AWS EventBridge](https://apis.io/apis/events/aws-eventbridge/)
- [Azure Event Grid](https://apis.io/apis/events/azure-event-grid/)
- [Google Cloud Pub/Sub](https://apis.io/apis/events/google-cloud-pubsub/)
- [Confluent Cloud](https://apis.io/apis/events/confluent-cloud/)
- [Confluent Schema Registry](https://apis.io/apis/events/confluent-schema-registry/)

## Tags

Protocol, IoT, Pub-Sub, OASIS

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