WhatsApp AI agents,
for India and the world

Yes. ThinnestAI connects directly to the WhatsApp Business API on Meta's Cloud API. You bring your verified WhatsApp Business number, we onboard it with you, and incoming WhatsApp messages flow through the same LLM / RAG / tool pipeline we use for web chat and voice. The agent itself is configured in a tabbed settings screen — prompt, knowledge, channels, actions, templates.

Yes. WhatsApp Business API is a paid product from Meta and requires a verified Meta Business account. ThinnestAI connects to it directly over Meta's Cloud API rather than through a reseller. As an approved Meta Tech Provider we run Embedded Signup, so connecting your number is self-serve: sign in with Facebook, pick the number, and you are live in minutes.

Yes. Hindi, Marathi, Tamil, Telugu, Bengali, Gujarati and Hinglish code-switching are handled natively. One agent replies in 37 languages, including all 22 scheduled Indian languages in their native script, off a single knowledge base and with no per-language surcharge.

One agent definition serves both. When someone who has messaged you on WhatsApp rings your number, we match them by phone number and give the voice agent a short digest of that history, so the call does not start from zero. By default the agent will acknowledge you have spoken before but withholds what was said until the caller verifies — caller ID is spoofable, so records are linked rather than merged. The agent will not start a conversation on a different channel by itself; outbound calls run as calling campaigns you set up.

WhatsApp message costs depend on Meta's conversation-based pricing. On top of that, ThinnestAI bills each reply usage-based, not a flat quoted rate. For combined WhatsApp + voice agents, voice minutes are billed at our flat voice rate — ₹2/min on standard voices, ₹2.5/min on premium voices — all-inclusive, with telephony, speech recognition, the LLM and the voice in the price either way, billed in 30-second pulses. Prices are pre-GST.

Yes. Shopify is a shipped integration on both lanes — a no-auth Storefront connection for catalogue, cart and checkout, and an OAuth Admin connection for order status and tracking. Your backend can also post an event such as order.delivered to our Events API to enrol that customer in a WhatsApp drip sequence, with consent re-checked at every send. See our /industries/ecommerce-voice-ai page for the full D2C playbook.

AiSensy, Wati and Interakt are WhatsApp-first messaging platforms. ThinnestAI is an AI agent builder that happens to support WhatsApp as one channel, alongside voice and web chat. If WhatsApp is your only channel, AiSensy/Wati are cheaper and simpler. If you need WhatsApp + voice + RAG + tool calling unified, ThinnestAI is the better fit.

Yes. A customer taps the call button in your WhatsApp chat and your AI agent answers, in their language. It is billed at your normal voice rate, by the minute; Meta does not charge for calls customers start, and we add nothing on top. WhatsApp requires a daily messaging limit of at least 2,000 people before calling can be switched on. Today the customer starts the call; the agent ringing a customer on WhatsApp is not available yet.

Any business whose WhatsApp daily messaging limit is at least 2,000 people — a rolling 24 hours, counted across the whole business, not per number. Verifying your business is the fastest way there. WhatsApp Manager may show an older per-number figure of 250; the business-wide limit is the one Meta checks, and the Calls window in ThinnestAI shows it.

No. ThinnestAI talks to Meta's Cloud API directly, so there is no reseller layer and no BSP margin between you and Meta. You keep ownership of your WhatsApp Business Account and your number.