How it works
Sixty seconds.
Handled inbox.
No Meta Business Manager. No phone-number verification dance. No developer setup. The AI starts replying the moment you finish pairing.
How the connection works
WhatsApp's multi-device protocol is the same one that powers WhatsApp Web and the desktop app. When you link a new device, your phone hands it a session key over an end-to-end encrypted channel. The new device then sends and receives on your behalf — even when your phone is off.
Messo is one of those linked devices. Instead of a browser tab, it's a service running in Frankfurt that reads each incoming message, decides what to do, and replies. Your phone keeps working normally. If you reply from your phone first, Messo stands down for that conversation.
What the AI handles
- ✓ Hours, location, pricing
- ✓ Bookings and reservations
- ✓ Reschedule or cancel appointments
- ✓ Standard product and service questions
- ✓ Friendly small talk
- · Complaints or angry tones
- · Requests outside your scope
- · Refunds, legal, medical
- · Custom keywords you flag
- · Low-confidence answers — never a guess
Privacy
Messages stay on WhatsApp's servers. Messo does not own a copy — we mirror what WhatsApp delivers to a Linked Device, and we keep operational logs (timestamps, status, errors) for as long as you have an account.
All processing happens in the EU. Anthropic provides the language model; Anthropic does not train on Messo data. See the Privacy Policy and DPA for the full picture.
FAQ
Messo connects via WhatsApp's official Linked Devices protocol. Your messages stay end-to-end encrypted on WhatsApp's own servers; we mirror them through the same channel WhatsApp Web uses. We never log into your account with your password.