Cross Domain · specification · AsyncAPI Initiative

AsyncAPI

AsyncAPI is an open specification for defining and documenting event-driven and asynchronous APIs in a machine-readable format. It describes message channels, payloads, bindings, and operations across protocols such as Kafka, MQTT, AMQP, and WebSockets, enabling tooling, code generation, and documentation.

www.asyncapi.com/The standard

AsyncAPI InitiativeGoverning body · Linux Foundation

2017First published

3.1.0Current version

Yes — JSON SchemaMachine-readable schema · open

12providers in the catalog

Also known as AsyncAPI Specification.

Providers that carry AsyncAPI 12

These providers' own APIs.json profiles carry AsyncAPI as a tag — the provider's statement that the standard is part of what it does. APIs.io has not verified the implementation on this page; the de facto profiles on this site are where that measurement exists. Ordered by Kin Score.

Stoplightexemplar · 71.8 Fastlystrong · 65.2 Bump.shstrong · 58.5 Aklivitydeveloping · 53.2 CDK Globaldeveloping · 47.4 Apicuriothin · 32.3 Spring Cloud Streamthin · 30.2 Eventsthin · 28.8 Spectralemerging · 22.0 Spotlight Rulesemerging · 18.4 SpecLynxemerging · 15.2 Event-Driven Architectureminimal · 3.9

Reading

Standards and Artifacts: Why the Agentic Turn Rewards What Australia's Banks Already Ship 2026-08-28
The Volatile and Selfish API Specification Landscape 2026-07-16
VCs Screwed Themselves by Restricting Interoperability 2026-07-13
A Browser-First Governance Validator for Your API Specs 2026-07-07
Bringing Legacy Standards Into the Modern API Age 2026-07-04
The Linux Foundation Is the Home of Our API Specifications, and They Should Work Together 2026-06-30

Read from the API Evangelist standards directory, facts verified 2026-08-17. Provider links come from the catalog's own identity tags and are rebuilt nightly. If this page is wrong about a standard or a provider, say so.