---
title: "I Will Build a Custom AI Chatbot for Your Website or App"
url: https://zinnhub.com/zinns/build-ai-chatbot-ai-saas-website-ai-mobile-app-ai-agent-with-support/
description: "Get a custom AI chatbot MVP with RAG, LLM integration, and full source code handover in 10 days for $255. Features up to 10 intents."
published: 2025-11-19T16:48:35+00:00
modified: 2026-10-19T17:40:58+00:00
language: en-GB
---

# I Will Build a Custom AI Chatbot for Your Website or App

Your customers expect instant, intelligent answers around the clock. A [custom AI chatbot](https://zinnhub.com/zinns/create-and-integrate-custom-ai-chatbot-chatgpt-fine-tune-llm-gpt-model/) delivers exactly that — reducing support load, capturing leads, and guiding visitors through decisions without a human in the loop. This listing is for businesses and developers who want a production-ready chatbot built properly, not a no-code widget bolted on.

With 5+ years of experience building scalable AI-powered applications from London, this team has delivered chatbots across real estate, e-commerce, hospitality, healthcare, travel and more. Every chatbot is built on proven AI infrastructure — OpenAI, DeepSeek, Claude, LangChain and custom-trained LLMs — giving you genuine flexibility on the model that powers your product.

WHAT YOU CAN GET BUILT
 The three packages cover the full journey from a focused MVP chatbot through to a CRM-connected, multi-platform AI assistant. Common chatbot types include:
 — FAQ and knowledge-base bots trained on your own data
 — Document Q&A bots for private business documents (no third-party data exposure)
 — Lead generation and survey bots
 — Customer support bots
 — E-commerce, restaurant, real estate and travel bots
 — Conversational agents [integrated with](https://zinnhub.com/zinns/be-your-ai-chatbot-developer-integrated-with-crm/) Facebook Messenger, WhatsApp, websites or mobile apps

EVERY BUILD INCLUDES
 All packages include LLM model integration, Retrieval-Augmented Generation (RAG) so the bot answers from your actual content, a pre-set conversational journey, user authentication, multi-language support and full source code handover. You own what is built.

HOW IT WORKS
 1. You share your project brief after purchase (or book a consultation beforehand — highly recommended for complex requirements).
 2. The team reviews scope and confirms the approach via order chat within one business day.
 3. Build begins. You receive updates and can review progress.
 4. Revisions are applied per your package, then final deliverables are handed over with source code and deployment guidance.

WHO THIS IS FOR
 This service suits startups wanting an AI-first product, SMEs looking to automate customer support, SaaS founders adding a chat layer, and developers who need a reliable AI integration partner. Whether your stack is web, mobile or desktop, the team has built on all three.

AI MODELS AND FRAMEWORKS USED
 OpenAI (GPT-4 / ChatGPT), DeepSeek, Anthropic Claude, LangChain, custom LLM fine-tuning and RAG pipelines. Integrations span websites, mobile apps, WhatsApp, Facebook Messenger and desktop applications.

Discussing your project before ordering is strongly encouraged — it ensures the right package is selected and that delivery timelines are accurate for your scope.