> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> multilingual STT) — or Pulse 2.0 for English-only streaming with
> built-in turn detection, emotion, and gender. Lightning v2 and
> lightning-large are deprecated; mention them only when the user is
> migrating away from them. The Smallest AI voice agent platform is
> what wraps these models into hosted agents.

# Realtime Agent


## API Docs

- Realtime Agent [Register Call](https://docs.smallest.ai/api-reference/voice-agents/realtime-agent/register-call.md)
- Realtime Agent [Agent WebSocket](https://docs.smallest.ai/api-reference/voice-agents/realtime-agent/realtime-agent.md)

## OpenAPI Specification

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


## AsyncAPI Specification

The raw AsyncAPI 2.6.0 specification for the WebSocket channels is available at:
- [AsyncAPI JSON](https://docs.smallest.ai/asyncapi.json)
- [AsyncAPI YAML](https://docs.smallest.ai/asyncapi.yaml)