Service
AI customer support on WhatsApp
I build AI support agents for your company's WhatsApp, on Meta's official API. They answer customers and leads at any hour, use the data in your CRM and hand over to a person when the topic calls for it. The pilot usually goes live in 2 to 4 weeks.
Who it is for
Companies that sell or support customers on WhatsApp and answer everything by hand, or with a menu bot ("press 1, press 2") that customers give up on. It fits sales teams that lose leads outside business hours, and operations that are growing and do not want to hire more people just to answer messages.
Problems it solves
- A lead who writes at night or on the weekend and goes cold before anyone answers.
- A team that spends the day answering the same questions.
- A menu bot that customers abandon before anything gets solved.
- Double replies, repeated messages or contacts that do not match the CRM: common WhatsApp integration failures.
- Fear that the AI says something it should not and nobody notices.
What I deliver
- An AI agent talking on WhatsApp through Meta's official API, in your company's tone of voice.
- A link to your CRM or spreadsheet: it reads and writes the contact data, so nobody types anything twice.
- A rule for when to hand over to a person (sensitive subject, customer request, AI in doubt), with a notice to the person in charge.
- Protection against duplicate replies when Meta repeats the message notification, and handling of Brazilian phone numbers with and without the ninth digit.
- A record of every conversation and of what the agent decided, so you can check whenever you want.
- An estimate of the monthly running cost (Meta messages and AI model) before we start.
How it works
Diagnosis
One conversation to map the questions that come in most, where the team loses time and what the agent can and cannot do. No cost, no commitment.
Design
I define the tone of voice, the handover rules and the success metric before writing any code.
Pilot in production
The agent goes live on a real number with controlled volume. You follow the conversations.
Tuning and scale
With the measured result, I fix what went wrong and roll it out to the rest of the operation.
Typical timeline
Pilot in production 2 to 4 weeks after the diagnosis. The timeline changes if the company's Meta account still needs to be verified.
Related case
Frequently asked questions
Can I use the unofficial WhatsApp API for AI support?
I do not recommend it and I do not use it for clients. Tools that connect WhatsApp through the QR code are not from Meta, and WhatsApp's rules list the use of unofficial clients among the prohibited conduct and provide for suspending the account. There is no public number on how many accounts get suspended, but the risk is real, and the company carries it: it can lose the channel where it sells. For a company's operation, I use Meta's official API.
How much does it cost to send messages through the official API in 2026?
Since October 1, 2026, Meta charges for service messages, which are the replies sent inside the 24-hour window after the customer writes. Meta does not publish a separate price for them: it says each country's rate is the same as for utility and authentication messages, with no volume discount. In Meta's own example for Brazil, that is 0.68 US cent per delivered message. The AI model is billed separately, by its provider. Messages the customer sends are not charged, and the 72-hour window opened by an ad that leads to WhatsApp is still free. Third-party guides mention 1,000 free service messages a month, but I did not find that in Meta's documentation, so I budget without counting on them. Values checked against Meta's documentation on October 9, 2026; check the current price table before you hire.
Will the agent sound like a robot?
It writes in your company's tone, understands what the customer meant and answers briefly, like an attentive person. Natural does not mean deceptive: I do not set the agent up to say it is a person when the customer asks, and the design always includes a handover to a human.
When does the AI hand the conversation to a person?
We define this together before the pilot. These usually go to a person: the customer asks for one, a sensitive subject (complaint, money, urgency), a question the AI cannot answer with the data available, and a conversation where the customer gets upset. The right person receives a notice with a summary of what was said.
Does it work with my CRM?
When the CRM has an API, yes: the agent reads and updates the contact directly in it. If your CRM has no API or no longer fits the operation, I can also build one from scratch, as the case below shows.
How long does it take and how much does the project cost?
The pilot usually goes live in 2 to 4 weeks. The price depends on the volume of conversations, the integrations and what the agent must do, and I quote it after the diagnosis, which is free. The WhatsApp Business account belongs to your company, and third-party costs (Meta messages and AI model) get a monthly estimate before we start.
Let's talk?
The diagnosis is a conversation, free and with no commitment. You leave with the list of processes that eat the most hours of your team.
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Want this running in your operation?
Tell me in one sentence. I reply with what can be done, how long it takes and what it costs.
Tell me the problem