# AsyncAPI Specification

**Canonical:** https://apis.io/apis/specifications/asyncapi/  
**Provider:** API Specifications — https://apis.io/providers/specifications/  
**Base URL:** https://www.asyncapi.com/docs/reference/specification/latest  
**Documentation:** https://www.asyncapi.com/

AsyncAPI Specification is one of 13 APIs that [API Specifications](https://apis.io/providers/specifications/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include AsyncAPI, Event-Driven, Messaging, Streaming, and Specification Language. The published artifact set on APIs.io includes API documentation and a GitHub repository.

AsyncAPI is the open standard for describing event-driven and message-driven APIs across protocols such as Kafka, AMQP, MQTT, WebSocket, NATS, and SNS/SQS. AsyncAPI 3.0 (December 2023) decoupled operations from channels, enabling clearer modelling of pub/sub, request/reply, and streaming patterns. AsyncAPI is governed by the AsyncAPI Initiative under the Linux Foundation, distributed under the Apache 2.0 license.

## Machine-readable artifacts (9)

- **Documentation** — https://www.asyncapi.com/docs
- **Specification** — https://www.asyncapi.com/docs/reference/specification/latest
- **Specification** — https://www.asyncapi.com/docs/reference/specification/v3.0.0
- **GitHubOrganization** — https://github.com/asyncapi
- **GitHubRepository** — https://github.com/asyncapi/spec
- **Governance** — https://www.asyncapi.com/community
- **License** — https://www.apache.org/licenses/LICENSE-2.0
- **Tools** — https://www.asyncapi.com/tools
- **Examples** — https://raw.githubusercontent.com/api-evangelist/specifications/refs/heads/main/examples/asyncapi-example.json

## Other API Specifications APIs (12)

- [OpenAPI Specification (OAS)](https://apis.io/apis/specifications/openapi/)
- [JSON Schema](https://apis.io/apis/specifications/json-schema/)
- [JSON Structure](https://apis.io/apis/specifications/json-structure/)
- [GraphQL SDL](https://apis.io/apis/specifications/graphql/)
- [gRPC and Protocol Buffers](https://apis.io/apis/specifications/grpc-protobuf/)
- [Smithy](https://apis.io/apis/specifications/smithy/)
- [TypeSpec](https://apis.io/apis/specifications/typespec/)
- [RAML (RESTful API Modeling Language)](https://apis.io/apis/specifications/raml/)
- [API Blueprint](https://apis.io/apis/specifications/api-blueprint/)
- [WSDL / SOAP](https://apis.io/apis/specifications/wsdl-soap/)
- [JSON-RPC 2.0](https://apis.io/apis/specifications/json-rpc/)
- [Tinybird API Spec](https://apis.io/apis/specifications/tinybird/)

## Tags

AsyncAPI, Event-Driven, Messaging, Streaming, Specification Language, Linux Foundation

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