AI Chatbot
Development
Get an estimate
AI Chatbot

AI Chatbot Development Services That Resolve Requests Instead of Deflecting Them

We build custom AI chatbots that answer from your data, work inside tools like Salesforce, and hand off to people cleanly. Senior engineers who deliver for enterprises test every bot before launch, so your customers never get a confident wrong answer.

200+ enterprises transformed
500+ domain trained professionals
US & India delivery centres
TYPICAL TARGET ARCHITECTURE
Claude or GPT on Amazon Bedrock / Azure OpenAI
LLM layer
LangGraph 1.x + MCP tools
Orchestration
pgvector or Azure AI Search
Retrieval
Salesforce, ServiceNow, Microsoft Teams
Systems + channels
Trusted by enterprise clients who demand real-world impact
IS .NET RIGHT FOR YOU

Where an AI Chatbot Is the Right Choice, and Where It Isn't

AI chatbot development services cover the design, build and integration of chatbots that answer questions and complete tasks from your own data. Most now run on large language models. The work spans conversational AI consulting, search over your content, links to CRM and service desk systems, accuracy testing, security review and support after launch.

Choose AI Chatbot when

✓  Your team answers the same questions all day. Most tickets or internal requests repeat, and the answers already sit in policies, docs or a knowledge base. A grounded chatbot clears that queue and leaves your people the hard cases.

✓  One answer lives in three systems. Customers and staff shouldn't have to check the CRM, the order system and a PDF to answer one question. A chatbot can query all three with permissions intact and reply in one place.

✓  Requests end in a simple action. Resetting access, changing a booking or checking a claim status all end in one system update. The bot can confirm the request and complete it through an API instead of opening a ticket.

✓  You need cover across time zones and languages. Global customers and shift-based teams need answers at 2 a.m. and in more than one language. A chatbot gives that coverage without staffing every hour.

Where we'd tell you not to

> Your help desk already ships an AI agent. Does your support run on Zendesk, Intercom or Salesforce? If you only need answers from that knowledge base, switch on Zendesk AI agents, Intercom Fin or Agentforce first. Build custom when you hit their limits on data, integrations or control.

> Nobody is actually in a conversation. Some jobs just move data between systems when something happens, like an invoice landing or a status changing. A chat window adds nothing there. Trigger-based n8n workflow automation does that job for less.

> People want the document, not an answer. Sometimes users need the source file, such as a contract, a drawing or a signed policy. Enterprise search on Azure AI Search or Elasticsearch is cheaper there, and easier to trust. Add a chatbot later, once people start asking questions the documents answer.

WHAT WE BUILD

Our AI Chatbot Development Services

Six ways enterprise teams engage us for custom chatbot development services, each with the stack we'd actually reach for on that kind of work.

Custom AI Chatbot Development

We build customer-facing or internal assistants that answer from your documents, tickets and product data. Retrieval-augmented generation ties each answer to a source. We design the handoff path and refusal rules before writing prompts, so the bot knows what it must never answer.

LangGraph 1.x, Amazon Bedrock, Azure OpenAI, pgvector, React

Chatbot Migration and Modernization

We move intent-based bots off Microsoft Bot Framework, Dialogflow ES, IBM watsonx Assistant or Rasa to an LLM-based design. We keep the flows that work and retire brittle decision trees. Both bots run side by side before cutover, as in any application modernization project.

Microsoft 365 Agents SDK, Dialogflow CX, IBM watsonx Assistant, Rasa Pro

Enterprise AI Chatbot Development

Your chatbot runs inside your own AWS, Azure or Google Cloud account, with private endpoints and single sign-on. The bot retrieves only what the signed-in user may see. Our cybersecurity and compliance team reviews every data flow.

AWS PrivateLink, Azure Private Link, Microsoft Entra ID, Okta, Amazon EKS

AI Chatbot Integration

We connect the bot to where work gets done: CRM, service desk, ERP and channels like Teams or WhatsApp. Each system becomes a governed, logged tool through its API or the Model Context Protocol. The same tools carry straight into AI agent development.

Salesforce, ServiceNow, Model Context Protocol (MCP), Microsoft Teams, WhatsApp Business Platform

Evaluation, LLMOps and Ongoing Support

A test set of real questions with approved answers runs on every prompt, model or content change. If accuracy drops, the release stops. After launch, our DataOps and MLOps team tracks answer quality, handoff rate and cost per conversation.

Ragas, DeepEval, Langfuse, GitHub Actions, Grafana

AI Assistants Inside Your Existing Applications

We add a chat panel to the portal, CRM or internal tool your users already open every day. Nobody needs another app or login. We start with one high-volume task and use your existing APIs and sign-in, so nothing needs a rebuild.

React, Next.js, Microsoft 365 Agents SDK, Slack Bolt, OAuth 2.0
PROOF

AI Chatbot and Conversational Automation Work We've Delivered

Three engagements with numbers attached. Every card leads with the outcome, not the technology.

24%

reduction in manual support responses from automated bot integration

Compliance SaaS

Web Platform With an Automated Compliance Bot for an AI SaaS Company

Rebuilt the web platform for a SaaS provider that simplifies compliance for fintechs and banks, and added an AI compliance chatbot to take routine support questions off staff.

Read the case study →

5+

Languages Supported across voice and text interactions

EdTech

AI Education Chat Assistant for Personalized Revision and Mock Exams

Built an AI study assistant for an ed-tech platform that breaks down topics, answers follow-up questions, runs tests and mock exams, and works in voice and several languages.

Read the case study →

60%

Cut manual effort by 60% Dropped average response time to under 2 minutes for common queries

Insurance

200K Automated Email Workflows for an Insurance Enterprise

Automated ingestion, categorization and replies for a large insurer's 200K+ yearly customer emails, connected to Salesforce, with human-in-the-loop controls for oversight.

Read the case study →
Working on something similar in
AI Chatbot
Start your
AI Chatbot
project brief →

Not sure whether to build a custom AI chatbot or switch on your help desk's built-in AI?

Get a 20-minute technical read from a senior engineer. No pitch deck, no sales team.

Request your 20-min review
ENGAGEMENT & COST

How You Engage Us, and What Drives the Cost

Three commercial shapes, and an honest account of what moves the number. You shouldn't have to fill in a form to learn how a partner charges.
WHAT ACTUALLY MOVES THE NUMBER
Seniority mix
An architect-heavy team costs more per month and usually less overall. The wrong mix shows up as rework, not as an invoice line.
Scope certainty
Fixed price needs fixed scope. Where the requirement is still moving, time and materials beats the contingency a fixed bid has to carry.
Compliance requirements
Regulated environments add evidence, review cycles and audit trails. That is real work, and it belongs in the estimate rather than in a surprise.
Integration surface
The number of systems you must talk to predicts effort better than feature count. Ten integrations is a different project from two.
Looking to hire
AI Chatbot
developers for your own team instead?
HOW WE DELIVER

Our Enterprise-Ready Delivery Framework

The same five steps on every engagement.
STEP 01
Contextual Readiness
Ready-to-deploy solutions for your environment. We map the existing estate, its dependencies and its constraints before proposing anything.
STEP 02
Seamless Vendor Onboarding
Rapid integration with existing vendor ecosystems. Access, environments, security review and ways of working, handled so engineering time isn't spent on procurement.
STEP 03
Platform-Agnostic Engineering
Works across any technology stack. We build on the stack that earns its place. We won't force a technology decision to suit our bench.
STEP 04
Flexible Engagement Model
Scalable team structures to your needs. The commercial shape can change as the work does, without renegotiating the relationship.
STEP 05
Hybrid Global Delivery
Onshore, nearshore and offshore delivery, with overlap hours that make standups worth attending.
WHEN WE'RE STAFFING A TEAM
Curated profiles · 24 to 48 hrs
Onboard & kickoff · 48 to 72 hrs
Our published staffing SLAs, from the point a requirement is agreed. You interview the engineers before committing.
HOW IT RUNS IN PRACTICE
Two-week sprints, demoable increments, a backlog your product owner controls
Peer review on every change and quality gates that block rather than warn
Canary and blue-green releases with rollback, so a bad deploy is a non-event
TRUST

Built on Trust. Proven in Delivery.

200+
Enterprises Transformed
150+
AI Projects Delivered
$500M+
Business Value Generated
500+
Domain Trained Professionals
“
We have been working with Entrans for the last two years and they have played a key role in building our solution. Their expertise and professionalism were evident throughout the development cycle, and we were very pleased with the final product.
Nikolay Prokopiev
Chief Executive Officer
“
Entrans has been a trusted outsourced product development partner for 2 years now, providing a pool of good quality software engineers to tap into. Their team has a strong customer first orientation, is open to feedback and is a pleasure to work with.
Subramanian Visvanathan
Chief Executive Officer
RECOGNIZED, CERTIFIED & PARTNERED
AWS
Partner Network
Microsoft Azure
Partner
NASSCOM
Member
Databricks
Partner
Denodo
Partner
Google Cloud
Partner
Confluent
Technology Partner
ISO 27001:2022
Certified
MongoDB
Cloud Partner
TiE
Member
SICCI
Member
SOC 2 Type II
Certified
FAQS

AI Chatbot Development FAQs

Still have a question?
Ask a senior engineer directly. We reply within one business day.
Ask us directly →

How much do AI chatbot development services cost?

An AI chatbot has two costs: the one-time build and the monthly cost of running it. The build depends mostly on integrations, content cleanup and the accuracy testing your use case needs. Running cost covers model usage, hosting, the search index and tuning, and it grows with traffic. A scoped pilot on one use case is the fastest way to get a real number, including your cost per resolved conversation.

What is the difference between a rule-based chatbot, an AI chatbot and an AI agent?

Rule-based chatbots follow scripts, AI chatbots understand free-form questions, and AI agents complete multi-step tasks across systems. Rule-based bots are predictable but break when users phrase things differently. AI chatbots use a large language model to answer from your content, so they need grounding and testing to stay accurate. Agents can finish work end to end, which means tight permissions, audit logs and approval steps for anything that changes a record.

How do you stop an AI chatbot from giving wrong answers?

You stop wrong answers by grounding the chatbot in approved sources, limiting what it may answer, and routing unclear questions to a person. Retrieval-augmented generation ties each answer to your documents. Citations let users check the source. Confidence thresholds send low-certainty or high-risk questions to a human agent, with the conversation attached. Most wrong answers trace back to outdated or conflicting content, so fixing the source material is part of the build.

Is our data used to train the AI model?

Enterprise model services such as Amazon Bedrock and Azure OpenAI don't use your prompts, outputs or documents to train their models. Both say so in their published data policies. Your documents stay in your own cloud account. The chatbot applies the same access rules your systems already enforce. For regulated data, the design also covers retention periods, masking personal data before it reaches the model, and logging every retrieval for audit.

Can you migrate our existing Bot Framework, Dialogflow or Watson chatbot?

Most existing chatbots can move to an LLM-based design without starting over, because their intents, flows and logs already show what users ask. Microsoft ended long-term support for the Bot Framework SDK in December 2025. The recommended replacement is the Microsoft 365 Agents SDK, so those bots are the most urgent to move. Fixed steps such as payments or identity checks usually stay as scripted flows, while open-ended questions go to the LLM. The old bot's conversation logs then become the first test set for the new one.

NEXT STEP

Start your AI Chatbot project brief

Tell us the shape of the problem. A senior engineer reads it and replies. You won't get a templated capability deck.

Reply within one business day
Every engineer signs an NDA before day one
You own the code from the first commit
You interview the engineers before committing