Clack — AI Agent Messenger

Now with text chat and multiple conversations. Talk or type with your OpenClaw AI Agent — private, self-hosted, no subscription. Free for 14 days.

Clack is the messenger for your self-hosted OpenClaw AI Agent. Chat by text, talk by voice — across multiple private conversations, all stored on your own server.

No middleman. No cloud relay. No account required.

HOW IT WORKS Clack connects directly to your OpenClaw AI gateway. Send a text message or start a hands-free voice call — switch between both anytime. Every conversation is stored on your server and synced across sessions.

VOICE & TEXT IN EVERY CHAT Talk naturally with real-time voice calls and automatic silence detection. Or type when you prefer. Tiny icons show which messages were voice and which were text, so you always know how a conversation happened.

MIX AND MATCH VOICE PROVIDERS Choose speech-to-text and text-to-speech independently: • ElevenLabs — premium natural voices • OpenAI — reliable and fast • Deepgram — low-latency specialist • On-device (Apple) — free, works offline

Save money by using free on-device transcription with premium cloud voices, or go fully local for zero API spend.

MULTIPLE CONVERSATIONS Create as many conversations as you need. Rename them, pick up where you left off, and switch between chats instantly. Full conversation history is persisted on your server.

PRIVATE BY DESIGN • Your voice and messages stream only to your server — never to us • Zero telemetry, analytics, or tracking • No account, no email, no sign-up • Open source server and protocol • Encrypted connections only (SSL or Tailscale)

EASY SETUP One command installs the server. Pair with a 6-character code. Start talking.

FEATURES • Real-time voice conversations with interrupt support • Full text chat with streaming responses • Multiple named conversations with history • 20+ built-in voice options across providers • Light, dark, and custom accent color themes • Adjustable silence detection and noise threshold • End-to-end encrypted connections • 14-day free trial, then $2.99 one-time — no subscription

Requires a self-hosted OpenClaw instance. Visit clack-app.com for setup instructions.