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AsyncAPI Specification

AsyncAPI

Cloud & APIsIoT & edge

WHY YOU NEED THIS

AsyncAPI is the OpenAPI equivalent for pub/sub and streaming APIs — versioned spec at asyncapi.com.

What It Is

Machine-readable format for event-driven and message-based APIs — WebSocket, MQTT, AMQP, Kafka, and more.

Taxonomy

By AsyncAPI version: 3.0 · 2.x

Top-Level Categories

AsyncAPI 3.0AsyncAPI 2.6Bindings (MQTT, Kafka, HTTP…)

Master Catalog

Specification reference

Sub-Indexes & Guides

AsyncAPI Studio

Rundown Standards Body

AsyncAPI Initiative

Maintains the AsyncAPI specification — an OpenAPI-like description language for event-driven and message-based APIs. Covers WebSocket, MQTT, AMQP, Kafka, and more.

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Curated specs from AsyncAPI

AsyncAPI 3.0AsyncAPIShould Know

AsyncAPI

If you have event-driven systems (Kafka, RabbitMQ, WebSocket APIs, IoT), AsyncAPI is the description format. Analogous to OpenAPI for async what OpenAPI is for REST.

ProductAPI DesignAPI Design

Details

Related Registry Sources

asyncapieventsmqttkafka