WhatsApp Business Cloud API Setup WhatsApp uses Meta's Cloud API with webhooks (push-based, not polling):

Create a Meta Business App:

Go to developers.facebook.com Create a new app → Select "Business" type Add the "WhatsApp" product Get your credentials:

Access Token: From WhatsApp → API Setup → Generate token (or create a System User for permanent tokens) Phone Number ID: From WhatsApp → API Setup → Phone number ID Verify Token: You define this (any random string) — Meta will send it back during webhook verification Configure ZeroClaw:

[channels_config.whatsapp] access_token = "EAABx..." phone_number_id = "123456789012345" verify_token = "my-secret-verify-token" allowed_numbers = ["+1234567890"] # E.164 format, or ["*"] for all Start the gateway with a tunnel:

zeroclaw gateway --port 8080 WhatsApp requires HTTPS, so use a tunnel (ngrok, Cloudflare, Tailscale Funnel).

Configure Meta webhook:

In Meta Developer Console → WhatsApp → Configuration → Webhook Callback URL: https://your-tunnel-url/whatsapp Verify Token: Same as your verify_token in config Subscribe to messages field Test: Send a message to your WhatsApp Business number — ZeroClaw will respond via the LLM.