WhatsApp AI agents built on the official Business API

Why put an AI agent on WhatsApp?

In many markets WhatsApp is where customers actually talk to businesses. They expect a reply in minutes, not the next morning. When nobody answers, they message a competitor. A WhatsApp AI agent closes that gap: every message gets an immediate, accurate reply, day and night, while your team focuses on the conversations that need a human.

Because the agent runs on the official WhatsApp Business Platform (Cloud API), you keep a verified business profile, use approved message templates for reminders and follow-ups, and stay within Meta's rules — no grey-market tools that get numbers banned.

Who is a WhatsApp AI agent for?

• Clinics, salons and service providers taking bookings and answering the same questions every day.
• Schools, coaching centres and course creators handling admissions questions, fee reminders and class updates.
• Shops and e-commerce brands answering product, price, stock and delivery questions and taking orders in chat.
• Real estate, travel and finance businesses qualifying enquiries from click-to-WhatsApp ads before a salesperson follows up.
• Any business advertising on Meta that sends ad clicks to WhatsApp and needs every lead answered instantly.

Live example: SomoySathi

We don't just build WhatsApp agents for clients — we run one. SomoySathi is a WhatsApp AI reminder assistant for Bangladesh, built and operated by Growbig100 LLC. People message it in Bangla, Banglish or English — or send a Bangla voice note — to set reminders for medicine, bills, classes and meetings. It confirms what it understood, lets users change or cancel reminders in the same chat, and sends the reminder on time.

Everything we learned running SomoySathi — handling mixed languages and voice, template approval, opt-in rules, message timing and delivery — goes into the agents we build for clients. You can try it at somoysathi.com.

What can a WhatsApp AI agent do?

• Reply instantly to every message, 24/7, in your brand's tone
• Understand text, emojis and voice notes in multiple languages, including mixed languages
• Answer questions from your price list, catalogue, policies and FAQs
• Qualify leads with your questions and send hot leads to sales
• Book, reschedule and cancel appointments from your real calendar
• Send reminders and follow-ups using approved message templates
• Share catalogue items, locations, documents and payment links
• Hand the chat to a person in a shared inbox, with full history
• Log every lead and conversation in your CRM or Google Sheets

What's included?

• WhatsApp Business Platform setup: Meta Business verification support, phone number registration, display name and business profile
• Conversation design, knowledge base and guardrails
• Message template writing and approval for reminders, confirmations and follow-ups
• Integrations: CRM, calendar, Google Sheets, e-commerce store, payment links
• Click-to-WhatsApp ad tracking so you can see which ads produce conversations and sales
• Shared inbox for human handoff
• Testing, launch and a dashboard of conversations, leads and bookings

How does the setup process work?

1. Number and account. We help you verify your business with Meta and connect a phone number to the WhatsApp Business Platform. A number already used in the WhatsApp Business app can usually be migrated.
2. Design. We map the conversations the agent will handle, write its instructions and collect your knowledge sources.
3. Build and integrate. We build the agent, connect your tools and submit message templates for approval.
4. Test. We test with real questions, voice notes and edge cases, and you try it on your own phone.
5. Launch and improve. We go live, watch real conversations and improve answers weekly during the first month.

What are the WhatsApp rules you need to know?

Meta allows free-form replies within 24 hours of a customer's last message. Outside that window, businesses must use pre-approved message templates, and customers must have opted in to receive them. Meta charges per template message by category (marketing, utility, authentication) and country. We design your agent around these rules so reminders and follow-ups are delivered reliably and your number keeps a good quality rating.

How is a WhatsApp AI agent priced?

You pay a fixed-price setup for the account, agent and integrations, then an optional monthly care plan for hosting, monitoring and improvements. Meta's WhatsApp conversation fees and AI model usage are billed at cost or directly to your own accounts, so you always see exactly what the platform charges.