hotbutter voice chat

Enables local voice chat by embedding Hotbutter relay server and PWA, providing speech-to-text and text-to-speech via a secure, self-hosted connection.

Audits

Pass

ClawScanReview

Agentic behavior and permission review.

Static analysisReview

Pattern checks against bundled files.

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Multi-engine malware detections and file reputation.

Install

openclaw skills install hotbutter

Hotbutter Voice Skill (Hosted Relay)

This skill routes data through hotbutter.ai. Voice transcripts and agent responses are transmitted through the hosted relay server at wss://hotbutter.ai. This is a convenience skill — not a private or local-only solution.

For a fully local alternative where no data leaves your machine, see hotbutter-os.

For updates, follow @DnuLkjkjh.

Privacy & Data Flow

Data that transits through hotbutter.ai:

Transcribed speech text (from browser speech-to-text)
Agent response text (stdout from your local openclaw binary)

Warning: If your agent prints sensitive information (secrets, credentials, private data), that output will be sent through the relay. Avoid running agents that output secrets, or use --relay-url to point to a relay you control.

Data that stays local:

Raw audio (processed in the browser, never transmitted)
The openclaw binary execution (runs on your machine)
Config file (~/.hotbutter)

Required Dependencies

openclaw CLI — must be installed and on your PATH

How It Works

This skill connects via WebSocket to wss://hotbutter.ai
A pairing code and URL (https://hotbutter.ai/app?code=XXXXXX) are printed
Open the URL in your browser to start a voice session
Browser speech-to-text converts your voice to text, sent through the relay to this skill
This skill executes openclaw agent --session-id <id> -m <text> on your machine
The agent's text response is sent back through the relay and spoken via browser TTS

Usage

# Start (connects to hotbutter.ai by default)
voice-bridge start

# Use your own relay for privacy
voice-bridge start --relay-url wss://your-relay.example.com

# Custom agent display name
voice-bridge start --agent-name "My Agent"

Configuration

Option	Default	Description
`--relay-url`	`wss://hotbutter.ai`	Relay WebSocket URL. Change this to use your own relay.
`--agent-name`	`Agent`	Display name shown in the voice client

First Run

On first run, the skill will prompt for an optional email (stored locally in ~/.hotbutter). Subsequent runs connect immediately.