> 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.

# API Reference

## Docs

- [Authentication](https://docs.smallest.ai/models/self-host/api-reference/authentication.md): Authenticate API requests with your license key
- [Health Check](https://docs.smallest.ai/models/self-host/api-reference/endpoints/health-check.md): Monitor service health and availability
- [Transcription](https://docs.smallest.ai/models/self-host/api-reference/endpoints/transcription.md): Convert speech to text with the /v1/listen endpoint
- [Integration Examples](https://docs.smallest.ai/models/self-host/api-reference/examples.md): Complete examples for integrating with Smallest Self-Host