> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> STT). 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.

# OpenClaw

> Add ultra-fast TTS and STT to your OpenClaw agent with the Smallest AI skill.

Add voice capabilities to your [OpenClaw](https://openclaw.ai) agent. Generate speech with \~200ms TTFB and transcribe audio with the Smallest AI skill.

## Installation

```bash
# Via ClawHub (recommended)
clawhub install smallest-ai

# Or manually
git clone https://github.com/smallest-inc/smallest-ai-openclaw.git
cp -r smallest-ai-openclaw ~/.openclaw/skills/smallest-ai
```

## Setup

Set your API key:

```bash
export SMALLEST_API_KEY="your_key_here"
```

Get a free key at [waves.smallest.ai](https://waves.smallest.ai).

Restart the gateway:

```bash
openclaw gateway stop && openclaw gateway start
```

## Usage

The skill triggers automatically when you ask your agent to generate speech or transcribe audio. Just talk naturally:

**Text-to-Speech:**

* "Say good morning in a male voice"
* "Read this aloud: The meeting is at 3pm"
* "Generate a voice note saying hello in Hindi"

**Speech-to-Text:**

* "Transcribe this audio file"
* "What did they say in this recording?"

**Multilingual:**

* "Say 'namaste, kaise hain aap' in advika's voice"
* "Say 'hola buenos dias' using camilla"

## Voices

The skill auto-selects voices based on your request:

| Voice     | Gender | Accent        | Best For                    |
| --------- | ------ | ------------- | --------------------------- |
| `sophia`  | Female | American      | General use (default)       |
| `robert`  | Male   | American      | Professional (default male) |
| `advika`  | Female | Indian        | Hindi, code-switching       |
| `vivaan`  | Male   | Indian        | Bilingual English/Hindi     |
| `camilla` | Female | Mexican/Latin | Spanish                     |
| `ella`    | Female | American      | Conversational              |
| `mia`     | Female | American      | Storytelling                |
| `arjun`   | Male   | Indian        | English/Hindi bilingual     |
| `vanessa` | Female | American      | Expressive, warm            |

217 voices total across 12 languages. The agent picks the right voice based on language and gender preference.

## Features

* Sub-100ms text-to-speech via Lightning v3.1
* 64ms speech-to-text via Pulse
* Supports WAV, MP3, OGG, FLAC, M4A, and WebM audio formats (STT)
* 30+ languages with automatic language detection
* Speaker diarization and emotion detection (STT)
* Hindi-English code-switching
* Voice cloning - clone any voice with just 5 seconds of audio (Basic plan+)

## Links

#### [ClawHub](https://clawhub.ai)

Install from ClawHub

#### [GitHub](https://github.com/smallest-inc/smallest-ai-openclaw)

Source code

#### [OpenClaw](https://openclaw.ai)

OpenClaw main site

#### [API Docs](https://docs.smallest.ai/models)

Full API documentation

> Add ultra-fast TTS and STT to your OpenClaw agent with the Smallest AI skill.