> For complete lifecycle-event payload schemas and examples, use the canonical overview: Session /api/sessions; Room lifecycle, participants, and room playback /api/rooms; Session playback /api/playback; Recording /api/recording; DTMF /api/keypad-input; Messages /api/messages; WebSocket Session /api/web-socket. Use /api/event-delivery for transport behavior. Endpoint pages name relevant events, but these overviews are the canonical references.

# Health

> Build reliable calling experiences with Vorbal APIs for calls, media, messaging, and webhooks.


## API Docs

- Health [Health check](https://docs.vorbal.dev/api/health/health-check.md)
- Health [Liveness probe](https://docs.vorbal.dev/api/health/liveness-check.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.vorbal.dev/openapi.json)
- [OpenAPI YAML](https://docs.vorbal.dev/openapi.yaml)