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An AI Agent That Replies and Sells in Your Online Store's Brand Voice

A WhatsApp AI agent that replies 24/7 in your e-commerce brand voice, qualifies the buyer, books, and sends the payment link. Sell without losing your tone.

Pablo Estrada · 12 de junio de 2026 · 6 min de lectura

A customer asks at 11 p.m. and your store stays silent

In an online store the sale doesn't die at checkout. It dies earlier: when someone writes "do you have this size?", "do you ship to my city?" or "can I pay in installments?" and the answer arrives six hours later, after they already bought somewhere else.

Most brands solve this two bad ways. They hire someone to answer messages (expensive, limited hours, and they quit every few months), or they bolt on a button-based chatbot that sounds robotic and scares people off. Neither sells the way your best salesperson does.

At Catalizadora we build a third option: a WhatsApp AI agent that replies in your exact brand voice, qualifies the buyer, books or closes, sends the payment link, and logs every conversation in your CRM. It isn't a button bot. It's your best salesperson, awake at three in the morning.

What "your brand voice" actually means

A women's fashion store doesn't talk like a supplements brand or a gift shop. The tone, the words, even the emojis you use are part of how you sell. A generic agent ignores all of that.

Before anything goes live, we map how your brand speaks: how you greet, how you answer a price objection, how you handle a complaint, what you'd never say. The agent operates inside those rules. If your brand is warm and close, it sounds warm and close. If it's serious and premium, it sounds serious and premium.

What the agent knows about your catalog

It doesn't improvise. It knows your products, prices, sizes, shipping times, and return policies. If something is out of stock, it says so and offers the alternative. If the buyer is torn between two products, it compares them like a salesperson who knows the inventory. And when a question is out of scope, it hands off to a person without leaving the customer hanging.

The full journey: from "hi" to payment

Here's a real online-store conversation, step by step:

  1. The message lands. A customer writes on WhatsApp after seeing an ad. The agent answers in seconds, not hours.
  2. It qualifies. It asks only what's needed: what they want, by when, where to ship. No interrogation.
  3. It handles the objection. "Too expensive?" The agent explains the value with your brand's argument, not an automatic discount that burns your margin.
  4. It closes or books. Direct purchase? It sends the payment link. Need a call (high-ticket or custom products)? It books the appointment.
  5. It hits the CRM. The whole conversation, the intent, and the status are logged. You open the CRM and see who's about to buy and who needs follow-up.

The difference versus a human community manager isn't only cost. It's consistency. The agent answers message number 3 as well as number 300, at any hour, never having a bad day.

Concrete numbers: cost and what's included

Our entry package, MAGIA Solo, costs 4,500 USD and ships in 15 days. It includes the AI agent in your brand voice, connected to WhatsApp, plus the CRM where conversations land.

If your operation is bigger (more volume, more integrations, multiple sales flows), MAGIA Core costs 15,000 USD. And for a fully custom build with deep development, Forge costs 20,000 USD over 12 weeks.

The part almost no one offers: the code, the data, and the infrastructure are 100% yours. No retainers, no locked-in licenses, no holding you hostage to a platform. Monthly operation is a pass-through of roughly 200 to 400 USD per month —hosting plus AI tokens— with no markup from us. You pay what it costs, nothing more.

Compare that to the usual setup: an agency charging a fixed monthly fee, owning the system, and the day you leave you're left with nothing. Here it's the opposite. We build it, hand it over, and the asset is yours.

Why this matters for an online store

In e-commerce the margin is already tight. Every lead you answer late is paid advertising that evaporated. An agent that replies instantly, in your voice, recovers sales that are currently walking to your competitor. And by freeing your team from answering the same thing a hundred times, you let them do what AI can't: handle the difficult customer, negotiate the big deal, build the brand.

This isn't about firing anyone. It's about your brand finally answering the way it should: fast, well, and always.

How we build it: the MAGIA method

We don't flip on a generic bot and walk away. We follow a five-step process: Mapping, Architecture, Generation, Implementation, and Autonomy.

In Mapping we understand your brand, your catalog, and how you sell today. In Architecture we design the flows: what happens on a price question, a shipping request, a complaint. In Generation we build the agent in your voice and connect it to WhatsApp and the CRM. In Implementation we test it with real conversations and tune it. And in Autonomy we hand it to you running, with full control in your hands.

That last step is what sets us apart. Many agencies keep operating the system to lock you into a monthly fee. We hand it over and step aside. The asset is yours from day one of delivery.

What the agent does NOT do

Worth being clear so we're not selling smoke. The agent doesn't invent promotions you didn't authorize. It doesn't improvise prices. It doesn't promise shipping times you can't meet. And it doesn't replace human judgment on a sensitive case: there it escalates to a person. Its job is to handle well what repeats a hundred times a day, so your team can focus on what truly needs a human.

Visibility: getting found before they buy

Replying well is half the battle. The other half is the customer arriving in the first place. So when we build an online store's presence, we set up a proprietary technical layer that helps your brand be more visible and easier to find. We won't get into the how —that's part of what we build— but the result is that more of the right people land in the conversation the agent is going to close.

Let's talk

If you want to hear how an agent in your store's voice would sound, the fastest way is to try it: message our WhatsApp AI agent and experience it firsthand —it replies, qualifies, and books exactly like yours would. And if you'd rather talk directly, grab 30 minutes with me here: https://cal.com/pablo-estrada-hlqaql. On that call I'll tell you straight whether your store is a good fit and what we'd deliver in 15 days.

Cómo te ayuda Catalizadora

Construimos sistemas con IA a la medida, con el código 100% tuyo. Elige por dónde empezar:

  • MAGIA Solo — marca, sitio, CRM y asistente con IA en 15 días.
  • MAGIA Core — automatización empresarial y dashboards por rol.
  • MAGIA Forge — software a medida con IA.
  • Ver precios · Academia de IA

Preguntas frecuentes

Does the agent really sound like my brand, or is it a generic bot?

It sounds like your brand. Before it goes live we map how you greet, how you answer objections, and what you'd never say, and the agent operates inside those rules. It's not a button chatbot.

How much does it cost and how fast is it running?

MAGIA Solo costs 4,500 USD and ships in 15 days, including the agent in your brand voice connected to WhatsApp plus the CRM. For larger operations there's MAGIA Core (15,000 USD) and Forge (20,000 USD, 12 weeks).

Who owns the system once it's delivered?

You do. The code, data, and infrastructure are 100% the client's. No retainers, no locked-in licenses. If you ever leave, you take everything with you.

Are there hidden monthly costs?

No. Monthly operation is a pass-through of roughly 200 to 400 USD per month (hosting plus AI tokens), with no markup from us. You pay the real cost of running it.

What happens when a customer asks something the agent doesn't know?

It hands off to a person without leaving the customer waiting, and the conversation is logged in the CRM so your team can follow up.

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