# Backstage Events System

**Canonical:** https://apis.io/apis/backstage/events-system/  
**Provider:** Backstage — https://apis.io/providers/backstage/  
**Documentation:** https://backstage.io/docs/plugins/backends-and-plugins/

Backstage Events System is one of 13 APIs that [Backstage](https://apis.io/providers/backstage/) publishes on the [APIs.io](https://apis.io/) network, described by an AsyncAPI event-driven specification. Tagged areas include Developer Portal, Event, and Webhook. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

The Backstage Events system provides a publish-subscribe mechanism for broadcasting and consuming events within a Backstage instance. It enables plugins to emit events when significant actions occur (such as catalog entity changes, scaffolder task completions, or permission policy updates) and allows other plugins or external systems to subscribe to those events via HTTP webhooks or the internal event bus.

## Machine-readable artifacts (3)

- **Documentation** — https://backstage.io/docs/plugins/backends-and-plugins/
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/backstage/refs/heads/main/asyncapi/backstage-events-asyncapi.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/backstage/refs/heads/main/apis.yml

## Other Backstage APIs (12)

- [Backstage Actions API](https://apis.io/apis/backstage/backstage-actions-api/)
- [Backstage Authentication API](https://apis.io/apis/backstage/backstage-authentication-api/)
- [Backstage Authorization API](https://apis.io/apis/backstage/backstage-authorization-api/)
- [Backstage Documentation API](https://apis.io/apis/backstage/backstage-documentation-api/)
- [Backstage Entities API](https://apis.io/apis/backstage/backstage-entities-api/)
- [Backstage Locations API](https://apis.io/apis/backstage/backstage-locations-api/)
- [Backstage Metadata API](https://apis.io/apis/backstage/backstage-metadata-api/)
- [Backstage Search API](https://apis.io/apis/backstage/backstage-search-api/)
- [Backstage Sync API](https://apis.io/apis/backstage/backstage-sync-api/)
- [Backstage Tasks API](https://apis.io/apis/backstage/backstage-tasks-api/)
- [Backstage Templates API](https://apis.io/apis/backstage/backstage-templates-api/)
- [Backstage Token Verification API](https://apis.io/apis/backstage/backstage-token-verification-api/)

## Tags

Developer Portal, Event, Webhook

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