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WhatsApp chatbot for lawyers: what it does and how much it costs

What CertuAI measured on the WhatsApp of 67 businesses

Across the 67 businesses that answer with CertuAI's AI, 32.5% of the 122,720 customer messages arrived outside Monday to Friday, 8 a.m. to 6 p.m. (July 30 to September 30, 2026). Half of the AI's replies went out within 11.7 seconds, and 9 in 10 within 20.7 seconds (38,908 replies). 34.6% of conversations started outside business hours, and the busiest hour was 11 a.m.

CertuAI WhatsApp Customer Service Index, Q3 2026: All businesses
What was measuredResultBase
Customer messages outside Monday to Friday, 8 a.m. to 6 p.m.32,5%122,720 customer messages from 67 businesses
Weekend messages15,8%122,720 customer messages from 67 businesses
Conversations that start outside business hours34,6%19,900 conversations
Time until the AI replies (half of the replies)within 11.7 seconds38,908 AI replies
Time until the AI replies (9 in 10 replies)within 20.7 seconds38,908 AI replies
Hour of the day with the most customer messages11h122,720 customer messages from 67 businesses

Source: CertuAI's customer service database, aggregated numbers only, no conversation read by a person; no imported history, no test contacts and without CertuAI's own sales chats. July 30 to September 30, 2026, measured on Oct 9, 2026. Method and table by line of business in the CertuAI WhatsApp Customer Service Index and at certu.com.br/dados.

Named customers, Jul 30 to Oct 10, 2026

CustomerCustomer messagesAI repliesConversations handledOutside business hoursAI replies in (median)Days with messages
JP Gás Água e Rações
gas and water distributor
42.83223.3516.47933,6%9,8 s70
CEMIP
medical clinic
12.4726.4842.43618,7%11,4 s37
Nikiti Auto Center
auto center
4.9123.54890019,5%14,4 s47
Imobiliária Rodrigues & Ribeiro
real estate agency
6.0902.75982333,2%18,4 s34
Alpha RH
human resources
3.0821.66672127,5%15,6 s52

Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.

What CertuAI customers wrote

CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]

Marcelo Vieira · Trustpilot, Oct 4, 2026 · 5 out of 5 · excerpt

Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.

About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent

You don't answer WhatsApp in a hearing. The agent triages the case, books the consultation and sends the list of documents, in the sober tone the firm requires.

Before that, see the AI agent demos and the CRM with service provider examples.

What is the best WhatsApp chatbot for lawyers in Brazil?

The best WhatsApp chatbot for lawyers in Brazil is the one that answers on the number the firm already uses, with the business rules written by you. An AI agent on WhatsApp for lawyers is CertuAI's automatic assistant. It answers while you're in a hearing: it triages the case by area of law, collects the summary and urgency, books the consultation in person or by video and sends the document list for that type of case, in the sober tone the firm requires.

Summary in 7 facts

By the numbers

NumberWhat it means
US$ 75 per monthThe Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan.
US$ 120 per monthPro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5.

What changes at the firm with an AI agent?

What changes is who answers first: the message no longer waits for you and is answered right away. These are four everyday situations at the firm before and after the CertuAI agent.

TodayA prospective client describes the case and waits hours for a reply

With CertuAIImmediate triage: area of law, urgency and an organized summary for you to assess

TodayConsultation booked through ten messages back and forth

With CertuAICalendar checked and time confirmed in a single conversation

TodayClient shows up without the required documents

With CertuAIDocument list sent automatically after booking

TodayAnxious client asks about the case every week

With CertuAIThe agent welcomes them, logs it and alerts you, without stopping your workday

What does a conversation handled by the AI look like?

Is an AI agent or manual customer service better for lawyers?

The agent wins on repeated tasks, and the person keeps winning on anything that takes judgment. With manual service, someone at the firm has to stop what they are doing; with the CertuAI agent, the reply goes out on its own and you step into the conversation whenever you want.

AspectThe manual wayWith the CertuAI agent
Contact that arrives during a hearingGoes unanswered for hours, and whoever is in a hurry looks for another firmTriaged right away, with the case summary waiting for you when you step out
Figuring out which area the case belongs toSeveral messages until you know whether it's labor, civil or family lawArea, summary and urgency collected before it reaches you
Document listSent from memory, and there's always an item missingEach type of case with its own list, sent at the right time
Active client asking about the caseInterrupts the team in the middle of a deadlineQuestion logged and passed to whoever answers that
Question about the consultation feeRepeated every day, and not always answered the same wayAnswered with the firm's rule, with no variation
Someone who was served notice today and is in a hurryGoes into the same queue as everyone elseMarked urgent by your rule and flagged for you

What does the WhatsApp agent do for lawyers?

It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers clients your way, with your rules.

Case triage

Area of law, case summary, urgency and how they found the firm. It reaches you ready for you to decide whether to take it.

Booking consultations

In person or by video, with real times from your calendar.

Document list

Each type of case with its own list, sent at the right time.

Welcoming active clients

Receives the question, logs it and passes it to you or the team to answer.

Questions about how it works

Practice areas, address, consultation format, payment methods.

What questions do clients send on WhatsApp?

They are always the same, and the agent answers each one on its own. These everyday firm messages no longer depend on you having your phone in hand.

Do you handle labor law cases? How much is a visit? My case is urgent, I was served notice today What documents do I need to bring? Do you do video calls? I wanted to know how my case is going

How does the agent start answering at the firm?

In three steps, on the same day. No installation, no code and no changing the number clients already know.

1

Teach your business

In one conversation, you explain services, prices, hours and rules, as you would to a new employee.

2

Connect WhatsApp

Scan a QR code with the number your clients already know. Ready in minutes.

3

The agent answers

It answers right away, books, does follow-up and logs every contact in the included CRM. You can take over any conversation whenever you want.

How much does an AI agent on WhatsApp cost for lawyers?

The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.

Get started now

Create the agent and connect WhatsApp to see it working at the firm.

Create my agent

Lawyer FAQ

Does the agent give legal advice?

No. It collects the account and organizes the triage. Legal analysis and advice are yours, as the OAB (Brazilian Bar Association) requires.

Is this compatible with the Code of Ethics?

The agent acts as a front desk: triage, scheduling and information on how the firm operates. It doesn't promise outcomes, doesn't solicit cases, doesn't give opinions.

Is the client's account kept protected?

The conversation stays in the firm's WhatsApp, visible only to whoever you authorize.

I handle several areas. Does it tell them apart?

Yes. You define the areas and the triage questions for each one, and it runs the right conversation.

In what other fields does the CertuAI agent work?

In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.

In short

Whoever arrives on WhatsApp tells their case, and you get in the CRM the triage by area of law, the urgency assessed, the consultation booked and the list of documents.

About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent