OpenClaw

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

Add voice capabilities to your OpenClaw agent. Generate speech with sub-100ms latency and transcribe audio with the Smallest AI skill.

Installation

# 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:

export SMALLEST_API_KEY="your_key_here"

Get a free key at waves.smallest.ai.

Restart the gateway:

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

80+ more voices available. 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

Install from ClawHub

GitHub

Source code

OpenClaw

OpenClaw main site

API Docs

Full API documentation