WhatsApp Business API & AI Agents for Indian Businesses

Most Indian businesses start on the free WhatsApp Business app, and for a shop answering a few dozen customers a day it is the right tool. It stops working at a predictable point: a broadcast list reaches at most 256 contacts, and only the ones who have saved your number. There is one inbox on one phone, no way to route chats between staff, and nothing that replies for you after hours.

The WhatsApp Business API is the same WhatsApp your customers already use, reached through Meta's official platform instead of the app. It sends approved template messages to any customer who has opted in — whether or not they saved your number — lets several people answer from one number, and connects to the systems a growing business runs on: a CRM, a Shopify or WooCommerce store, Razorpay payment links, a booking calendar. It is also the only route to an AI agent that answers on WhatsApp for you.

The switch usually pays for itself the first time a campaign needs to reach more than a few hundred people, or the first month a team of two or more is sharing one phone.

There are two separate bills. Meta charges for the messages, by category and by the country your customer is in. Your provider charges for the software. Meta's part is broadly the same whichever provider you choose, so when two Indian providers compete on price they are competing on the second bill only.

India is one of the cheapest countries in the world to message on WhatsApp. Marketing messages cost the most; utility messages — order confirmations, delivery updates, appointment reminders, payment receipts — cost a fraction of that. From 1 October 2026 Meta also charges for replies to customers — service messages — at the utility rate, ₹0.115 a message in India; only chats that begin from a Click-to-WhatsApp ad or a Facebook Page button stay free, for 72 hours. Your bill depends far more on that mix than on volume, which is why our WhatsApp API price calculator asks for exactly those two things.

Two questions are worth asking any provider in writing. First, whether Meta's charges are passed through at cost or marked up — at real volume that margin is larger than the subscription. Second, whether you get a rupee tax invoice against your GSTIN, which makes the spend claimable as input tax credit. Several international providers bill in dollars and issue nothing of the kind.

Meta is moving Indian businesses to rupee billing as well. Since 1 January 2026 eligible businesses whose sold-to country is India can be billed by Meta in INR, and Meta's documentation says every WhatsApp Business Account of an eligible business must be on INR by 31 December 2026 — from 1 January 2027 Meta will stop delivering messages from eligible businesses' accounts still billed in another currency. If your number sits with a provider that bills Meta's charges to you in dollars, ask them now how and when they are moving it.

DLT registration does not apply to WhatsApp. TRAI's DLT framework governs commercial SMS; WhatsApp business messages go through Meta instead, where every outbound template is reviewed and approved before it can be sent. The practical difference is that Meta usually reviews a WhatsApp template within minutes to a day, and there is no separate telecom registration to wait on.

Consent does apply. The Digital Personal Data Protection Act, 2023 expects consent to be specific, informed and as easy to withdraw as it was to give — which lines up with what Meta already requires before you message a customer. Keep a record of how and when each customer opted in, and honour STOP immediately. A platform can enforce this at send time, but the obligation stays with the business.

Meta also watches quality. Numbers that send messages people block or report lose their quality rating and have their daily sending limit cut. The businesses that scale on WhatsApp in India are the ones that message people who asked to hear from them.

The Indian market has several capable providers, and the right one depends on how you work. Per-seat pricing suits a small team and gets expensive when a campaign succeeds and replies flood in. A flat fee per number suits high volume. Some platforms are built around broadcasts; others around support; a few around an AI agent that books and sells.

Beyond price, check four things: whether the chatbot or AI agent can answer in Hindi and the regional languages your customers write in; whether payment links and order updates connect to Razorpay, Shopify or WooCommerce without custom work; how long moving your existing number from another provider takes; and whether a person answers when something breaks. Our comparisons below set Reputoo against the providers Indian businesses shortlist most, including where we are the wrong choice.