> 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.

# Conversations


## API Docs

- Conversations [Get a time-limited recording download URL (legacy)](https://docs.smallest.ai/api-reference/voice-agents/conversations/get-a-time-limited-recording-download-url-legacy.md)
- Conversations [List retry attempts for a call](https://docs.smallest.ai/api-reference/voice-agents/conversations/list-retry-attempts.md)
- Conversations [Cancel an in-flight call](https://docs.smallest.ai/api-reference/voice-agents/conversations/cancel.md)
- Conversations [Cancel a queued call (path-param form)](https://docs.smallest.ai/api-reference/voice-agents/conversations/cancel-queued.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)