asyncapi/spec resource
The AsyncAPI specification allows you to create machine-readable definitions of your asynchronous APIs. observed · 2026-08-28
Health v2 · maintenance only
76/100
- Activity 97
- Release rhythm 36
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3575
- days_rel: 214
- days_push: 22
- n_releases_24m: 1
Adoption not part of the score
5291 stars · 383 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
The AsyncAPI specification is an open, machine-readable standard for defining asynchronous and event-driven APIs, analogous to OpenAPI for REST APIs. This repository hosts the specification document itself, versioned releases, and examples, under the Linux Foundation.
Use cases
- define machine-readable contracts for event-driven APIs
- generate documentation for Kafka or RabbitMQ message-driven microservices
- describe WebSocket, MQTT, or AMQP APIs in a standard format
- standardize async API definitions across teams like OpenAPI does for REST
- document event schemas for message brokers
- learn how to write AsyncAPI specification documents
When to choose
- you build event-driven or message-based architectures and need standardized API contracts
- you want tooling ecosystem support for code generation and docs from async API definitions
- you need a vendor-neutral, language-agnostic specification backed by the Linux Foundation
When to avoid
- you only build synchronous REST APIs - OpenAPI is the better fit
- you need a runnable tool or library rather than the specification document itself
- you need JSON Schema validation files, which live in the separate spec-json-schemas repo
Facets
learning-resource · maturity stable
api-framework documentation api-documentation sdk apis documentation developer-tools microservices cross-platform python jvm asyncapi openapi-alternative event-driven-architecture api-specification kafka mqtt amqp websockets machine-readable-contracts linux-foundation messaging nodejs
4 sources
- readme: https://github.com/asyncapi/spec · fetched 2026-08-28 · e6d51171a929
- homepage: https://www.asyncapi.com · fetched 2026-08-29 · c3844b0451f6
- site_page: https://www.asyncapi.com/docs · fetched 2026-08-29 · 3d4b76ea8e4e
- site_page: https://www.asyncapi.com/about · fetched 2026-08-29 · 5d037d13cc1e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| asyncapi/spec | main | 76 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem