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Nexta Web Solution
Digital marketing & SEO

AI agent development that does the work, not just the talking

We build AI agents that check real data and take real actions in your systems, such as booking a slot or updating a lead, inside limits you set. When the agent is unsure, a person on your team takes over.

  • From ₹24,999 + GST. Agents are priced as a fixed project after a free call, based on how many tools and channels they touch.
  • A real person on WhatsApp within 15 minutes, Mon–Sat 10 am–7 pm IST, in Bengali, Hindi or English.
  • You own the work. Code, files, accounts and data stay in your name, with an NDA on request.

Updated by the Nexta Web Solution team

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Get a price for AI agent development

Free call, then a fixed quote on WhatsApp. No obligation.

  • 5+ years experience
  • 10,000+ clients
  • MSME registered
  • ISO certified
  • PCI DSS certified
  • NIXI accredited

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  • 5+ years experience · 10,000+ clients

    Businesses in India, the UK, the Gulf and beyond

  • MSME · ISO · PCI DSS · NIXI

    Registered, certified and accredited. See details

  • Registered Pvt Ltd company

    CIN U62099WB2024PTC267968 · 2 offices in Hooghly

  • A real person on WhatsApp

    Reply within 15 minutes in office hours

AI agent development at Nexta, in short

AI agent development is building software that reads a customer or staff request, decides what to do, and then acts through your tools: checking an order, booking an appointment, qualifying a lead or updating your CRM. Nexta builds these agents for Indian and overseas businesses on OpenAI, Claude or Gemini models, with guardrails, logs and human hand-off. Pricing is a fixed project quote; a focused first agent usually goes live in three to six weeks.

A person working in a room with several monitors
PricingFrom ₹24,999 + GST
5+ years · 10,000+ clients

Why most business chatbots disappoint

“"Our chatbot only gives canned answers"”

Customers ask "where is my order" and the bot replies with your returns policy. It cannot look anything up, so every real question still lands on a staff member.

“"The demo was great, the live version made things up"”

A vendor showed a slick agent, but once it met real customers it quoted wrong prices and invented delivery dates. Now nobody on the team trusts it.

“"Leads come in at night and nobody replies until 11 am"”

Enquiries from IndiaMART, the website and WhatsApp sit unanswered overnight. By the time someone calls back, the buyer has already spoken to two other suppliers.

“"We do not know what it will cost every month"”

You have heard of API bills running out of control. Nobody has explained what one conversation costs, or what happens if traffic doubles in the Puja season.

“"Our data is in five places"”

Orders sit in Shopify or Tally, appointments in Google Calendar, leads in a spreadsheet. An agent that cannot reach these systems is just another chat window.

What our AI agent development covers

Agents scoped around one real job

We start with a single, frequent task such as order status, appointment booking or lead qualification. A narrow agent that does one job reliably is worth more than a general one that does ten things badly.

Tool connections to your actual systems

The agent calls your APIs through defined tools: Shopify or WooCommerce orders, Google Calendar or Calendly slots, Zoho, HubSpot or a custom CRM, Razorpay payment links. Each tool has strict inputs, so the model cannot do anything outside them.

Answers grounded in your own documents

Policies, price lists and product sheets are indexed so the agent answers from your content, with retrieval through pgvector or a similar store. If the answer is not in your material, it says so instead of guessing.

Guardrails and approval steps

We set hard limits in code, not just in the prompt: refund caps, discount ceilings, which actions need a staff click to approve. Sensitive fields such as phone numbers and addresses are masked in logs.

Human hand-off that keeps context

When the customer is angry, the request is unusual or the agent is not confident, the chat moves to a person on WhatsApp, email or your helpdesk with the full conversation and a short summary attached.

Bengali, Hindi and English conversations

Current models handle mixed-language messages like "order kab aayega" reasonably well. We test with real phrasing from your customers and tell you plainly where accuracy is still weak, especially in voice.

Logs, evaluation and cost tracking

Every conversation, tool call and model response is traced (Langfuse or a similar tool), so you can see why the agent did something. A monthly view shows cost per conversation and the questions it failed on.

From first call to a live agent

  1. 1Day 1-3

    Free call and task selection

    We look at your enquiries, pick the one job worth automating first and agree on what "done correctly" means, in writing.

  2. 2Week 1

    Data and tool mapping

    We list the systems the agent must read or write, get API access, and write the rules: what it may do alone, what needs approval, what it must never do.

  3. 3Week 2-4

    Build and test against real conversations

    The agent is built with your chosen model and tested on a set of past chats and emails, including awkward ones, before any customer sees it.

  4. 4Week 4-5

    Staff-only pilot

    Your team uses the agent internally or in "suggest a reply" mode for a week or two. We fix the failures they find.

  5. 5Week 5-6

    Go-live and tuning

    The agent goes live on the agreed channel with hand-off switched on. For the first month we review failed conversations weekly and adjust.

What you get

  • A working agent on your website, WhatsApp Business Platform number or internal tool
  • Tool integrations with your order, booking or CRM system, documented
  • A written rule book: allowed actions, approval steps and blocked actions
  • A test set of real questions with expected answers, rerun after every change
  • Conversation and tool-call logs with personal data masked
  • Monthly cost and failure report for the first three months
  • Source code, prompts and configuration in your own repository
  • API keys created in your own OpenAI, Anthropic or Google account

Pricing

From ₹24,999 + GST

₹29,499 including GST

Agents are priced as a fixed project after a free call, based on how many tools and channels they touch. A website or WhatsApp assistant with one or two simple actions starts from ₹24,999 + GST; agents with several system integrations get a written quote within 24 hours. Model API usage and WhatsApp conversation charges are billed by the providers to your account, at cost.

Get my quote Book a free call

Every price shows GST and the total. Nothing is added after you enquire.

How we build agents differently

We say no to agents that should be a form

If a simple form, a WhatsApp menu or an automation in n8n solves the problem more cheaply, we will tell you on the first call. Not every process needs a model making decisions.

Limits live in code

A prompt can be talked around by a determined user. Refund caps, price checks and permission rules are enforced in the tool layer, so even a confused model cannot exceed them.

You own the accounts and the bill

Model API keys, the vector store and the code sit in accounts you control. You pay the model provider directly at cost, and you can move to another developer without asking us for anything.

Server work is in-house

We run our own hosting brand, TPHOST, so hosting the agent backend on an Indian VPS, setting up monitoring and handling security patches does not get passed to a third party.

Is this right for you?

A good fit if

  • Businesses that get the same handful of questions or requests every day on WhatsApp, chat or email
  • Clinics, coaching centres and service businesses that book appointments or demos
  • Online stores that want order status, returns and COD confirmation handled after hours
  • B2B sellers who need IndiaMART and website leads qualified and routed to the right salesperson

Probably not the right fit if

  • If your product data and policies are not written down anywhere yet, sort that out first
  • Decisions with legal or medical consequences that need a qualified person every time
  • Very low volumes, where a part-time staff member is cheaper and friendlier
  • Anyone looking for an agent that runs the whole business unsupervised

AI agent development: frequently asked questions

Something else? Call +91 7500-4300-91 or WhatsApp us.

A focused agent on your website or WhatsApp with one or two actions starts from ₹24,999 + GST as a one-time build. Agents that read and write several systems, such as orders, CRM and payments, are quoted per project after a free call, usually within 24 hours. On top of that you pay the model provider for usage, which for most small businesses is a modest monthly amount. We estimate this for your volume before you sign.

A chatbot mostly answers questions; an agent can also act. A chatbot can tell a customer your delivery policy. An agent can look up that customer's actual order in Shopify, see that it is stuck with the courier, and raise a ticket or offer a callback. The extra power is exactly why agents need firm limits, testing and a hand-off path to a person.

It can, if it is built carelessly, which is why we design against it. The agent answers from your documents and live data, refuses when it cannot find an answer, and passes the conversation to your staff when unsure. We also run a test set of real questions before every change. No model is perfect, so we keep logs and review failures in the first weeks rather than claiming zero errors.

We pick per task, not by habit. OpenAI and Anthropic Claude models are strong at following tool-calling instructions; Google Gemini can be cheaper for high volumes. For simple routing we often use a smaller, cheaper model and save the larger one for hard cases. Because the code is structured around tools, switching models later is a configuration change, not a rebuild.

A single-job agent usually takes three to six weeks from the first call to going live, including a staff-only pilot. Most of that time goes into connecting your systems and testing with real conversations, not writing prompts. Agents that touch accounting, payments or several departments take longer, and we give you the go-live date in writing with the quote.

We limit what the agent can see to what its job needs, mask personal details in logs, and use API settings where the provider does not train on your data. The backend can run on an Indian server if you prefer data to stay here. We also explain what India's DPDP Act expects from you, like consent and purpose limits, though your legal adviser should confirm specifics.

Usually the scope was too wide, the costs were not modelled, or nobody planned for mistakes. Gartner has predicted that over 40% of agentic AI projects will be cancelled by the end of 2027 for those reasons. We start with one measurable job, show running costs up front and keep a person in the loop, so you can see value before expanding.

Yes. We work with businesses in the UK, the Gulf, Australia and North America, and can give a fixed quote in USD, GBP or AED. Agents can speak English, Arabic or other languages your customers use, and calls fit around your time zone. Contracts, NDA and invoices are handled in writing, and you own all code and accounts.

Sources: Outlook Business: Gartner says over 40% of agentic AI projects will be scrapped by 2027

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AI agent development for businesses in Hooghly, Kolkata and worldwide

We are based in Hooghly, with offices in Ramanathpur and near the LIC Office in Chanditala. We work with businesses in Chanditala, Serampore, Chinsurah, Chandannagar, Uttarpara, Arambagh, Howrah, Kolkata and the rest of West Bengal, and we are happy to meet at our office or yours.

Talk to us in Bengali, Hindi or English, on WhatsApp or at our office.

Our Hooghly and Kolkata page

Head office

Ramanathpur, Hooghly

Plot No-229, Ramanathpur
Hooghly, West Bengal 712704
India

Mon–Sat, 10:00 AM – 7:00 PM IST

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Branch office

Chanditala, Hooghly

Near LIC Office, Chanditala
Hooghly, West Bengal 712702
India

Mon–Sat, 10:00 AM – 7:00 PM IST

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