One open-source agent answers schedules and prices on every chat app, books through your calendar and passes symptom questions to staff.
Example conversationExample conversation with a made-up clinic; blue chips are logged tool calls the patient doesn't see.
Three moments every clinic on Zalo and Messenger knows.
A patient asks about Saturday and braces at night. Reception reads it at 8 AM; she already booked elsewhere.
“My gum is swollen, what should I take?” Answering can hurt someone. Ignoring it leaves the patient alone.
Every afternoon reception texts tomorrow's patients one by one, between check-ins and payments.
A guardrail screens every message first and hands symptom or medicine questions to staff. The agent handles the rest from your documents.
Patients message on
Every message kept
Answered in turn
Your clinic's agent
Guardrail on every message
The agent does the admin
Write the guardrail in plain words; an AI classifier checks every message against it. Blocked chats go to staff with full history.
The agent hands over when
oh also my gum is swollen, what medicine should I take?
I can't advise on medicine, so I've passed this to our staff. Swelling spreading fast, high fever or trouble breathing? Call 115 now.
Handed to staff: A guardrail blocks a message
Connect Google Calendar via Composio, a Google Sheet, a REST API or an MCP server. Each call is logged with input and result.
| Time | Tool | Input | Result |
|---|---|---|---|
| 21:47 | find_free_slotsGoogle Calendar · Dr Hung · Saturday | Dr Hung · Saturday | OK |
| 21:49 | create_eventGoogle Calendar · Sat 10:30 · braces consultation · Linh | Sat 10:30 · braces consultation · Linh | OK |
| 21:49 | append_rowGoogle Sheets · Bookings sheet · Linh · 09xx xxx 456 | Bookings sheet · Linh · 09xx xxx 456 | OK |
| 21:49 | schedule_followupEcbot · Fri 19:00 · appointment reminder | Fri 19:00 · appointment reminder | OK |
| 22:15 | find_free_slotsGoogle Calendar · Dr Mai · Sunday · timed out | Dr Mai · Sunday · timed out | Error |
Each Zalo, Messenger, WhatsApp or Telegram identity attaches to one profile. When phone or email match, Ecbot suggests a merge for staff to confirm.
Merge suggested
Telegram “@linhnt” has the same phone number.
Nguyen Thao Linh
09xx xxx 456 · linh.nt@example.com
Contact points
Staff notes
Prefers Dr Hung, mornings, reminder the evening before.
Playbooks per visit type, every message answered, reminders in the patient's chat.
Write how you book a braces consultation in markdown. The agent opens it only when a chat needs it.
# Braces consultation 1. Ask which doctor they prefer 2. Check free slots with find_free_slots 3. Take their name and phone number 4. Say the doctor confirms the final price 5. Ask them to arrive 10 minutes early
Every message is kept and answered in turn, even when 30 patients write at lunch.
+30 messages at lunch break
Rule: remind 1 day before. Follow-ups run 1 minute to 30 days ahead, max 5 per chat, not synced with your calendar.
- Booked an appointment: remind the patient at 7 PM the day before
Thu 21:49
Booked Saturday 10:30 with Dr Hung
Fri 19:00
Agent: “See you tomorrow at 10:30 with Dr Hung. Please come 10 minutes early.”
Moved in the clinic software
Reminder keeps the old time; message the patient
Test it in a private chat before patients see it.
The builder suggests persona, tone, goals and rules. You edit what's off.
Describe your business
A dental clinic in Thu Duc, patients message us on Zalo and Messenger
Suggested by the agent builder. Edit anything.
Upload prices and doctor schedules, not medical records. Connect Google Calendar or your booking API.
In Postgres with pgvector, on your server if you self-host
Tools the agent can use
ComposiomarketplaceBlock symptom, medicine and test-result questions, test with old messages, then connect channels.
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 patients on Zalo, Messenger, WhatsApp, Telegram and your website. It answers hours and prices, books through your connected tool, sends reminders and hands medical questions 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