Your custom AI agents for WhatsApp.

Stackly gives you a clean way to send messages, run small campaigns, and chat with customers using AI from your own computer and WhatsApp number.

No subscriptions. No hidden fees.
Stackly · AI Chat Preview
WhatsApp · AI-enabled
Server: online
AIRA🌸
Hi there! 👋 Our new summer drop just went live — light, minimal pieces in limited stock. See the collection here:
https://aira.store/summer-drop
Today · 10:24 Broadcast
Customer
Hi! Do you know if the beige dress in size M will be restocked soon
Today · 10:27 Seen
AIRA🌸
Hi! 😊 That item is currently sold out in size M, but we’re expecting a small restock in the next 3–5 days. If you want, I can notify you the moment it becomes available.
Today · 10:27 AI reply
Powered by OpenAI All stacked in one place.
Why Stackly

Everything you need to automate WhatsApp. Supercharged with AI

AI
AI-Chat Engine

Your AI replies instantly with context using the custom instructions and data for each number. It handles questions, pricing, and FAQs and hands off to a human when required.

Broadcasts
Bulk messaging

Send personalized broadcasts to thousands with variables, media attachments, timed delays, and opt-out handling for clean and safe delivery.

Accounts
Multi-number support

Manage multiple numbers from one dashboard. Each number has its own name, AI setup, flows, bots, and live status for organized multi-brand work.

Database
Smart importing (active only)

Import contacts from CSVs, WhatsApp chats, groups, or Excel. Stackly keeps only active WhatsApp numbers and builds a clean, targeted database.

Reusable
Templates & campaigns

Create reusable templates in text, media, button, or list formats with variables and personalization. Use them for launches, drops, flows, campaigns, and follow-ups.

Private
Self-hosted & private

Run Stackly as a Windows app or on a VPS like DigitalOcean. Your numbers, data, and AI stay private with no shared inboxes or external servers.


Power tools

Advanced controls when you need them.

Buttons
Interactive actions

Get WhatsApp-style interactive buttons to your messages letting customers visit product pages, navigate flows, or trigger AI actions with a tap.

Opt-out
Respect preferences

Automatically detect unsubscribe requests, use custom keywords, exclude opted-out contacts from future sends, and let contacts opt back in whenever they choose.

Proxies
Scale safely

For advanced users, manage Proxy6.net proxies directly inside Stackly. Configure, assign, and monitor proxies to keep multi-number setups stable and secure.

Keywords
Simple auto-replies

Set up auto-replies using keyword triggers, time-based rules, and conditions: welcome & away messages, and FAQ responses to handle common questions without AI.

Chatbot
Custom AI flows

Create multi-step AI conversations with a visual flow builder. Add message, question, condition, and action nodes to branch logic, capture responses, and trigger actions or APIs.

Calls
Auto Call Reply

Automatically send WhatsApp messages when you receive calls. Customize the message, set time rules, add exceptions, and handle missed or after-hours calls automatically.

Stackly dashboard interface
Dark mode
How it works

From setup to AI powered WhatsApp in three simple steps.

1
Install and connect WhatsApp.

Install Stackly on your Windows machine or VPS, open WhatsApp Web or Desktop, and scan the QR code to connect. You can add multiple numbers and each one becomes its own Stackly channel.

QR Preview
QR
Scan to connect
2
Upload your database.

Import contacts as a simple name and phone table. Stackly cleans and prepares your data so you can start sending broadcasts immediately, even before turning on AI.

Contacts Preview
Name
Phone
Alex
+1 202 *** 4421
Lina
+44 20 *** 9935
Hana
+971 50 *** 1287
Marco
+39 331 *** 7742
Sara
+61 4 *** 3209
Kenji
+81 70 *** 6591
Fatima
+966 55 *** 2143
David
+49 171 *** 8820
Isabella
+34 612 *** 4477
Omar
+20 10 *** 5632
Sophia
+33 6 *** 9912
Carlos
+55 11 *** 7284
Mei
+86 138 *** 4529
Jonas
+46 73 *** 1185
Nadia
+7 495 *** 2211
Arjun
+91 98 *** 4420
Elena
+30 210 *** 5533
3
Turn on the AI Chat Engine.

Set your OpenAI API key, then assign a custom prompt and token limit to each number. Stackly uses these settings to deliver accurate, contextual AI replies across all connected numbers.

Example prompts
Prompt
You are a helpful WhatsApp support assistant for AIRA🌸 store. Answer customer questions using the information provided to you. If a question is unclear, ask for clarification. Keep replies short and friendly. If an issue requires a human, say “I will forward this to our team.”
For: +7 495 *** 2211
1000 / tokens

Prompt
You are an assistant for our real estate listings. Provide property details, availability, pricing, and viewing times based on the data we give you. Keep replies short, and offer the closest matching options if the property they want isn’t available. Forward negotiations or inquiries to a human agent.
For: +44 20 *** 9935
1500 / tokens
Keep your machine or VPS running for real-time AI responses.

One-time license. Yours to keep.

$45 – one-time payment
No subscription. No renewal. Pay once and use it as long as you want.