One open-source agent answers guests in their language, checks free rooms, holds one pending a deposit and hands payments to staff.
Example conversationExample conversation with a made-up villa and prices; blue chips are logged tool calls the guest doesn't see.
Three moments every owner answering guests by phone knows.
A guest asks about Christmas at 1 AM. You're asleep; by 7 AM they've paid the place that replied first.
Dates, kids, a dog and a pickup in one line, often in English. Menu bots can't cope.
A room sits held for days waiting on a deposit, while other guests hear you're full.
Every message is kept, even overnight. The agent answers from your rates, holds rooms through your tools and passes chats to staff when needed.
Guests message on
Every message kept
Answered in turn
Your property's agent
One setup, every channel
The agent does the work
Connect your Google Sheet room calendar via Composio, or your hotel software's REST API or MCP server. Every call is logged with input and result.
| Time | Tool | Input | Result |
|---|---|---|---|
| 01:12 | lookup_rowsGoogle Sheets · Room calendar · Villa 2BR · 20-23 Dec | Room calendar · Villa 2BR · 20-23 Dec | OK |
| 01:14 | append_rowGoogle Sheets · Hold · Sophie · until 13:00 · pending deposit | Hold · Sophie · until 13:00 · pending deposit | OK |
| 01:14 | schedule_followupEcbot · in 12 hours · deposit reminder | in 12 hours · deposit reminder | OK |
| 02:40 | lookup_rowsGoogle Sheets · Room calendar · Garden room · 24-25 Dec | Room calendar · Garden room · 24-25 Dec | OK |
| 13:05 | lookup_rowsGoogle Sheets · Room calendar · timed out | Room calendar · timed out | Error |
Each Messenger, WhatsApp, Zalo or Telegram identity attaches to one profile. The agent sees past stays and notes, and greets returning guests like one.
Merge suggested
WhatsApp “Sophie L.” has the same phone number.
Sophie Laurent
+33 6xx xx xx 21 · sophie.l@example.com
Contact points
Staff notes
Travels with 3 friends. Vegetarian breakfast. Likes the upper bedroom.
Write a guardrail like “deposits, refunds or complaints go to a person” and add backup keywords. Staff reply in the same inbox, full chat above.
The agent hands over when
Our flight was cancelled, we can't come on the 18th. Can we get the deposit back?
Sorry about your flight. Mai handles deposits and refunds; she'll reply here.
Handed to staff: A guardrail blocks a message
Reminders for quiet guests, playbooks for awkward cases, every message answered.
Message a guest again 1 minute to 30 days later, up to 5 per chat. Written fresh, not synced with your calendar.
- Room held, no deposit yet: remind after 12 hours
Fri 01:14
Villa held for Sophie, waiting for the deposit
Fri 13:14
Agent: “Your villa is held until 1 PM. Want the payment link again?”
Guest: “paid!”
The agent cancels the next reminder
Write how you handle early check-in, pets or cancellations in markdown. The agent opens one only when a chat needs it.
# Early check-in 1. Check the room for the night before with lookup_rows 2. Free: offer check-in from 10 AM at no charge 3. Taken: offer to keep the bags and the pool 4. Guests who arrive before 7 AM go to staff
Every message is kept and answered in turn, even when 40 guests write overnight.
+40 messages overnight
Test it on your last ten room inquiries before guests see it.
The builder suggests persona, tone, goals and rules. You edit what's off.
Describe your business
A two-bedroom pool villa near Hoi An; guests message on WhatsApp and Facebook, many in English
Suggested by the agent builder. Edit anything.
Upload rates and house rules, then connect your room calendar Sheet or hotel API.
In Postgres with pgvector, on your server if you self-host
Tools the agent can use
ComposiomarketplaceConnect WhatsApp, Facebook, Zalo OA, Telegram or the website widget, then go live.
On the roadmap: Instagram, TikTok Shop, Shopee, LINE
How Ecbot guards credentials, screens messages and keeps businesses apart.
Platform tokens use AES-256-GCM with versioned keys, so keys rotate without taking channels offline.
Credentials never enter the model's context, so no prompt can pull them out.
Incoming messages are screened for scams and prompt attacks, replies for leaked data. You set the strictness.
Each business gets its own workspace. Staff join by invitation with a role, checked on every request.
Open source. Self-host it if you want.
On GitHub under AGPL-3.0, with every Cloud feature. Your knowledge stays in your own Postgres.
Ecbot is an open-source AI agent that answers guests on WhatsApp, Zalo, Messenger, Telegram and your website, in their language. It checks and holds rooms, schedules deposit reminders and hands payments and complaints to staff.
Last updated: 2026-09-22
Join the Ecbot Cloud waitlist, or self-host it today.
Or self-host the open-source version from GitHub