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Best AI agent developer in Bangladesh that works 24/7

Your customers message at midnight. They ask the same ten questions every day. I build an AI agent that answers them, in Bangla or English, and passes hot leads to you. One agent, one clear job, done well.

  • Answer customers 24/7
  • Qualify and book leads
  • Trained on your own docs
  • Hand off to a human when needed
See Sample Agents

Free call. No pressure. Backed by a money-back guarantee.

Amanat Mossalli Taju, AI agent developer in Bangladesh, in his Dhaka office
One agent, one jobSupport · Leads · Booking · Voice
Bangla + EnglishReplies in the customer's language
Money-back guaranteeWritten into every contract
Quick answer

Who is the best AI agent developer in Bangladesh?

Many business owners and IT professionals name Amanat Mossalli Taju. He is a Dhaka-based digital marketer and AI agent developer with 6+ years of experience and 175+ brands grown. He builds AI agents for WhatsApp, Messenger, websites and phone calls. They answer customers, qualify leads and book meetings, trained on each business's own data.

Based in
Uttara, Dhaka
Experience
6+ years, since 2020
Channels
WhatsApp, Messenger, web, voice
Languages
Bangla + English
6+
Years in digital marketing
175+
Brands grown
24/7
Agent online, every day
12h
My reply time to you
Sound familiar?

Too many messages. Not enough hands.

This is what business owners tell me before we build their first AI agent.

"We reply too late"

A customer asks the price on WhatsApp at 11 pm. By morning they have bought from someone else.

"Same questions, all day"

Delivery charge, price, size, location. Your team answers the same things hundreds of times.

"Leads go cold"

You run ads and get many inboxes. Nobody follows up fast, so most of them never buy.

"Our old bot was useless"

Button menus that loop and loop. Customers get angry and just type "human".

"What if the AI lies?"

You worry a chatbot will invent a price or promise something you can't deliver.

"Our buyers write in Banglish"

Half your messages mix Bangla and English. Most bots can't understand them.

You don't need a bigger team for every message. You need one well-built AI agent that knows your business and knows when to call you.

Quick check

Signs you need an AI agent now

If four or more of these are true, an agent will pay for itself in the first few months.

  • You get 30+ customer messages a day on WhatsApp, Messenger or your site
  • Many messages arrive after 9 pm or on Fridays and wait till morning
  • Your team answers the same 10 questions over and over
  • You run ads, get inboxes, but follow-up is slow or forgotten
  • Leads ask the price and then go quiet before anyone replies
  • Customers write in Banglish and your old bot cannot understand them
  • Booking a visit or a call takes five back-and-forth messages
  • Your support staff spends hours on questions a FAQ could answer
  • You lose track of which leads were replied to and which were not
  • You want to serve customers abroad in their time zone, without night shifts
  • Your prices, policies and FAQs already exist in a doc or sheet

Fewer than four? You may only need a better FAQ page or a simple auto-reply. I will tell you honestly.

What's included

A complete AI agent, built around one job

I plan it, build it, test it and look after it. You get an agent that sounds like your brand and follows your rules.

WhatsApp & Messenger agents

Built on the official WhatsApp Business Platform and Messenger API. Your agent replies in the apps your customers already use.

Website chat agent

A chat window on your site that answers questions, suggests products and captures the lead before they leave.

Trained on your docs (RAG)

I load your prices, policies, FAQs and product data into a knowledge base. The agent answers from your facts, not guesses.

AI lead qualification

The agent asks your key questions, scores the lead and sends the good ones to your CRM, sheet or phone.

Booking agent

It checks your calendar and books calls, visits or appointments. Reminders go out on their own.

Voice AI agent

An agent that picks up phone calls, answers common questions and takes messages or bookings. Clear, natural voice.

Guardrails & human handoff

Clear rules on what it can and cannot say. If a chat gets tricky, it hands over to your team with the full history.

Data privacy

Your data stays in your accounts. Business API plans that don't train on your data, and no customer details where they don't belong.

Monitoring & monthly tuning

I read real conversations, fix weak answers and add new knowledge. The agent gets better every month.

What an agent can do for you

Six AI agents most businesses start with

Pick the one job that eats the most time. We build that first, prove it works, then add the next.

WhatsApp sales agent

Answers price, size, stock and delivery questions in Bangla, English or Banglish. Takes the order details and saves them for your team.

Most popular

Customer support agent

Handles the questions your team repeats all day, from your own FAQs and policies. Hands tricky chats to a human with the full history.

Lead qualifier

Asks your key questions (budget, location, timeline), scores the lead and sends the good ones to your CRM, sheet or phone.

Booking agent

Checks your calendar, books calls, visits or appointments, and sends reminders. Good for clinics, salons, consultants and real estate.

Voice AI agent

Picks up phone calls, answers common questions, takes messages or books a slot. Natural voice, clear limits, human handoff.

Internal knowledge bot

A private agent for your own staff. Ask it about policies, prices, SOPs or product specs and get the answer with the source.

Not sure which one fits? On the free call I look at your inbox volume and tell you which job gives the fastest payback.

How a smart agent really works

Three things that make an agent safe and useful

Any tool can make a bot that chats. A good AI agent needs the right facts, the power to act and firm rules. This is where most builds fail.

RAG

Grounded answers

Retrieval-augmented generation. Before it answers, the agent looks up your own documents and replies from them.

  • Prices, policies and FAQs in a knowledge base
  • Answers quote your real facts
  • Easy to update, no retraining
  • Says "I'll check" when it doesn't know
Tools

Tool calling

The agent doesn't just talk. It can safely use tools you approve, like your calendar, CRM, order system or Google Sheet.

  • Check order or delivery status
  • Book a slot in your calendar
  • Save the lead to your CRM
  • Send a payment or product link
  • Only the actions you allow
Guardrails

Rules, tests and handoff

Clear limits, tested before launch. The agent stays on topic and passes hard cases to a human.

  • Topic and tone rules
  • No made-up prices or promises
  • Test chats before going live
  • Human handoff with full context

The right model for the job: I work with OpenAI (GPT), Anthropic Claude and Google Gemini. I pick the model by your language, speed and budget, not by hype. Need many agents working together across your tools? See agentic AI development.

In plain words

How an AI agent works, without the jargon

You will hear words like RAG, tools, guardrails and handoff. Here is what each one means for your business.

The model is the brain

The agent runs on a large language model from OpenAI, Anthropic or Google. It understands normal sentences, including Bangla and the Banglish mix people really type. The model alone knows nothing about your business. That is why the next four parts matter so much.

RAG gives it your facts

RAG means retrieval-augmented generation. Before the agent answers, it searches a knowledge base built from your price list, policies, FAQs and product data. Then it replies from what it found. When you change a price, I update the knowledge base. No retraining, no rebuild.

Tools let it act

Tool calling lets the agent do things, not just talk. It can check an order status, book a slot in your calendar, save a lead to your CRM or send a payment link. Each tool is one function I write and test. The agent can only use the tools you approve.

Guardrails keep it safe

Guardrails are the rules. Stay on topic. Never invent a price or a promise. Do not give medical or legal advice. Ask one clear question if unsure. I write them down, test them with tricky questions in Bangla and English, and you approve them before launch.

Handoff keeps humans in charge

Some chats need a person: an angry customer, a refund, a special request. The agent spots these and passes the chat to your team inbox with a short summary and the full history. The customer never has to repeat themselves.

Monitoring makes it better

After launch I read real conversations every month. Where the agent was unsure, I add knowledge. Where it was wrong, I fix the rule. You get a short report in plain English: what people asked, what the agent handled and what I improved.

How your agent handles a message

Every message follows the same clear path

No black box. Here is what happens from the moment a customer writes to the moment they get help.

  • One clear job. A focused agent is easier to trust and test.
  • Your facts only. Answers come from your own documents.
  • Humans stay in charge. Tricky chats go straight to your team.
  • Checked every month. I review real chats and improve weak answers.
Your AI agent, step by step
Message comes inWhatsApp, Messenger, website or phoneStep 1
Understand + look upReads intent, searches your knowledge baseStep 2
Answer or take actionReplies, books, saves the leadStep 3
Hand off if neededYour team gets the chat and a summaryStep 4
In: a customer questionOut: an answer, a lead or a booking
AI agent deliverables

What your agent looks like

These are sample mockups, not client screenshots. They show exactly what you get when I build your AI agent.

WhatsApp Agent That Sells In Banglish

01782790018info@amanatmossalli.comamanatmossalli.com
WhatsApp Agent

A WhatsApp agent that answers in Banglish and takes orders

Bangla, English and Banglish understood. Orders and leads saved for your team.

Lead Qualifier That Books The Call

01782790018info@amanatmossalli.comamanatmossalli.com
Lead Qualification

A chat agent that qualifies leads and books the call

Your questions, your scoring. Only good leads reach your calendar.

Support Logic You Approve First

01782790018info@amanatmossalli.comamanatmossalli.com
Agent Design

A clear decision flow for every support chat

You approve the logic before I build. No surprises in live chats.

Agent Setup You Own And Control

01782790018info@amanatmossalli.comamanatmossalli.com
Configuration

A documented agent setup you own

Every rule, tool and source written down. Easy to change later.

Launch Checklist, Nothing Untested

01782790018info@amanatmossalli.comamanatmossalli.com
Testing & Launch

A launch checklist so nothing goes live untested

Tested on real questions before your customers ever see it.

Monthly Agent Report In Plain English

01782790018info@amanatmossalli.comamanatmossalli.com
Monitoring

A monthly report on how your agent is doing

See what customers ask, where the agent struggled and what I improved.
An honest comparison

Me vs an agency vs a cheap bot builder

Lots of people sell chatbots now. Here is what you really get from each.

8/8Amanat
2/8Agency
0/8Freelancer

Who builds your agent

A senior specialist, directly

AgencyA junior dev after the sales call

FreelancerOne person, often template-based

Trained on your real data

Yes, RAG knowledge base

AgencyUsually

FreelancerGeneric prompts only

Bangla + English support

Tested in both, plus Banglish

AgencyEnglish first

FreelancerHit or miss

Guardrails and human handoff

Built in from day one

AgencyExtra cost

FreelancerRarely

Connects to CRM and calendar

Yes, with tool calling

AgencyYes

FreelancerBasic

Marketing know-how

Built to win leads and sales

AgencyTech focus only

FreelancerNone

Monthly monitoring

Real chats reviewed and tuned

AgencySupport tickets

FreelancerGone after delivery

Guarantee

Satisfaction + money-back

AgencyNone

FreelancerNone

What matters to you
Best fitAmanat MossalliSenior specialist, direct
Typical agencySales team + juniors
Typical freelancerOne skill, one person
Who builds your agent
A senior specialist, directly
A junior dev after the sales call
One person, often template-based
Trained on your real data
Yes, RAG knowledge base
Usually
Generic prompts only
Bangla + English support
Tested in both, plus Banglish
English first
Hit or miss
Guardrails and human handoff
Built in from day one
Extra cost
Rarely
Connects to CRM and calendar
Yes, with tool calling
Yes
Basic
Marketing know-how
Built to win leads and sales
Tech focus only
None
Monthly monitoring
Real chats reviewed and tuned
Support tickets
Gone after delivery
Guarantee
Satisfaction + money-back
None
None
Full marks
8 of 8
2 of 8
0 of 8
IncludedPartlyMissing
How I work

How I build your agent. Step by step.

Most single-job agents go live in a few weeks. You see and test it before launch.

1

Free call & job pick

We choose the one job that saves you the most time or money.

Week 1
2

Knowledge & rules

I gather your FAQs, prices and policies. You approve what the agent can say.

Week 1–2
3

Build & connect

I build the agent and connect WhatsApp, your site, CRM or calendar.

Week 2–3
4

Test & launch

We test with real questions in Bangla and English. Then it goes live.

Week 3–4
5

Monitor & improve

I review chats every month, fix weak answers and add new knowledge.

Ongoing
Your first 30 days

From first call to a live agent in about a month

Most single-job agents follow this path. Voice agents and deep CRM work can add a week or two.

  1. Day 1

    Free call and job pick

    We look at your messages and pick the one job that saves the most time. You get a written quote the same day.

  2. Days 2–5

    Knowledge and rules

    You send FAQs, prices, policies and sample chats. I write the agent's rules and the handoff plan. You approve both.

  3. Days 6–12

    Build and connect

    Knowledge base, tools, channel setup on the official WhatsApp or Messenger API, website widget or phone line.

  4. Days 13–18

    Test in Bangla and English

    I run real questions, tricky questions and rude questions. Your team tests too. I fix every weak answer.

  5. Days 19–21

    Soft launch

    The agent goes live for part of your traffic or hours. Your team watches the handoffs. Small fixes same day.

  6. Days 22–30

    Full launch and first review

    The agent takes all chats. I read the first month of conversations and send a short report with what I improved.

The proof

Why clients call me the best AI agent developer in Bangladesh

I'm a marketer first. I've spent 6+ years since 2020 getting leads and sales for 175+ brands. So I build AI agents that bring in business, not just chat.

My clients use AI agents to answer customer questions, pre-qualify leads around the clock and free up their support teams. About half of them are in the UK, USA, Australia, Canada and Europe. The rest are here in Bangladesh, where Bangla and Banglish support really matters.

I don't sell magic. I build one agent for one clear job, train it on your own facts, add firm rules and test it before launch. Then I keep watching real chats and improving it.

6+ yrsDigital marketing since 2020
175+Brands grown worldwide
~50%Clients outside Bangladesh
24/7Agents answering for clients

Don't take my word for it. Check it.

  • Search "best AI agent developer in Bangladesh" on Google.
  • Ask ChatGPT or Gemini the same question.
  • Read the client reviews about AI agents below.
  • Book a free call and ask for a live demo.
Tools I use

The AI stack I build with

Proven models and platforms. I pick what fits your job, language and budget.

OpenAI APIAnthropic ClaudeGoogle GeminiWhatsApp Business PlatformMessenger APIn8nMakeZapierLangChainPineconeSupabaseVapiElevenLabsTwilioHubSpotGoogle SheetsCalendlyPython
Industries

AI agents for your kind of business

Each industry gets a different job, different rules and different knowledge.

E-Commerce & F-CommerceOrders, sizes, delivery questions
Clinics & HealthcareAppointments and reminders
Real EstateLead qualification and site visits
Education & CoachingCourse info and admissions
Travel & HotelsBookings and trip questions
Law Firms & ConsultantsIntake and consult booking
SaaS & FintechProduct support from your docs
Restaurants & CafesMenus, orders and reservations
Home ServicesQuotes, visits and follow-ups
Beauty, Salons & FitnessBookings, packages, reminders
Automotive & DealersTest drives and service slots
AgenciesClient intake and lead capture
Logistics & CourierTracking and delivery questions
Manufacturing & ExportProduct specs and RFQ intake
B2B ServicesLead qualification and demos
NGOs & Training CentresProgram info and sign-ups
Ways to work together

Pick how you want to start

Every agent is different, so I quote prices after a short call. Here is how most clients begin.

AI Agent Plan

For owners who want a clear plan before building.

  • Pick the best job for AI
  • Map your questions and data
  • Channel and model advice
  • Written build plan
  • 1-hour walkthrough call
Most popular

Agent Build + Launch

For businesses ready for one agent that does one job well.

  • WhatsApp, Messenger, web or voice
  • Knowledge base from your docs
  • Guardrails and human handoff
  • CRM, sheet or calendar connection
  • Testing in Bangla and English

Monthly Care

For live agents that should keep getting better.

  • Monthly chat review
  • New knowledge added
  • Fixes for weak answers
  • Uptime and cost checks
  • Short report in plain English

Every plan comes with a written scope, weekly updates and a money-back promise.

Pricing, honestly

What changes the cost of an AI agent in Bangladesh

There is no fixed price list because no two agents are the same. These are the things that move the number up or down, in Dhaka or in London.

What mattersLower costHigher cost
The jobOne job, like FAQs or lead captureSeveral jobs in one agent, or complex sales flows
ChannelsOne channel: website, WhatsApp or MessengerMany channels, plus a voice agent on your phone line
KnowledgeA clean FAQ and price list you already haveHundreds of pages, PDFs or a product catalogue that changes daily
IntegrationsLeads saved to a Google SheetCRM, calendar, order system, payment links, custom APIs
LanguagesEnglish onlyBangla, English and Banglish, each tested properly
AI usageA small, cheap model for simple questionsA stronger model for long chats or voice, billed by use
Guardrails & testingStandard rules and test setStrict rules for health, legal or finance, plus extra test rounds
After launchSelf-managed, with a handover guideMonthly care: chat review, new knowledge, fixes

AI usage (the model's own bill) is shown separately from my fee, so you always know what you pay. After a free 15-minute call you get a clear written quote. One price, money-back promise in the contract.

Client reviews

What clients say about their AI agents

4.9 Google5.0 Trustpilot4.9 Clutch
Good to know

AI agent questions, answered simply

Who is the best AI agent developer in Bangladesh?
Many business owners and IT professionals name Amanat Mossalli Taju. He is a Dhaka-based digital marketer and AI agent developer with 6+ years of experience and 175+ brands grown. He builds AI agents for WhatsApp, Messenger, websites and phone calls that answer customers, qualify leads and book meetings.
What is the difference between a chatbot and an AI agent?
An old chatbot follows fixed buttons and scripts. An AI agent understands normal language and looks up answers in your own documents. It can also take actions, like booking a call or saving a lead. It also knows when to pass the chat to a human.
How much does an AI agent cost in Bangladesh?
It depends on the job, the channels and the tools it must connect to. A simple website or WhatsApp FAQ agent costs much less than a voice agent linked to your CRM. After a free 15-minute call, I send a clear written quote. AI usage costs are shown separately, so you always know what you pay.
How long does it take to build an AI agent?
Most single-job agents go live in 2 to 4 weeks. That includes gathering your knowledge, building, connecting tools and testing. Voice agents and complex integrations can take a little longer.
Can you build an AI agent for WhatsApp?
Yes. I build on the official WhatsApp Business Platform. Since January 2026, Meta only allows AI on it that serves a real business purpose, like support, sales or bookings. Business agents like the ones I build are exactly what the rules allow.
Can the AI agent reply in Bangla?
Yes. I test every agent in Bangla, English and the Banglish mix most customers actually type. It replies in the language the customer uses.
What is a RAG chatbot?
RAG means retrieval-augmented generation. The agent first searches your own documents, like price lists, policies and FAQs, then answers from them. This keeps answers accurate and lets you update knowledge without rebuilding the agent.
Will the AI agent make up wrong answers?
I reduce that risk with a knowledge base, strict rules and testing before launch. If the agent isn't sure, it says so and hands the chat to your team. I also review real chats every month and fix any weak answers.
Is my customer data safe?
Yes. I use business API plans from OpenAI, Anthropic or Google that don't train on your data by default. Your knowledge base and chat logs stay in accounts you own, and I only connect the data the agent really needs.
Do you build AI agents for clients outside Bangladesh?
Yes. About half of my clients are in the UK, USA, Australia, Canada and Europe. I work in their time zones and reply within 12 hours.
What do I need to give you to start an AI agent project?
Three things. Your FAQs or a list of the questions customers ask most. Your prices and policies. And access to the channel (WhatsApp Business, Facebook Page, website or phone number). Sample chats from your inbox help a lot. I guide you through each step on the first call.
Amanat Mossalli Taju, digital marketer in Dhaka, Bangladesh
Amanat Mossalli Taju Senior AI Agent Developer Replies within 12 hours

Ready for an agent that never misses a message?

Tell me which job eats most of your team's time. I'll suggest the right AI agent and honest next steps on a free 15-minute call.

  1. Send the form or pick a time on my calendar.
  2. I reply within 12 hours. Personally, not a sales rep.
  3. We talk for 15 minutes. You leave with clear next steps.
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We agree the work in writing. I keep improving it until it meets that standard.

In every contract

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If I don't deliver what we agreed, you get your money back. It is written into every contract.

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