I will develop ai agent, ai chatbot, using rag python llms, vapi, voice agent solution


Level 2
About this gig
Looking for a custom AI chatbot, RAG chatbot, AI agent, voice agent, or LLM-powered assistant for your business, website, or startup? You're in the right place.
I build custom AI chatbots and AI agents with RAG over your PDFs, website, FAQ, or business data using Python, FastAPI, LangChain, and LLMs.
What I'll build for you:
- Custom AI chatbot or AI agent in Python
- RAG chatbot for documents, notes, or website content
- Voice agent solution / voice AI assistant with Vapi
- LLM integration (OpenAI, Gemini, open-source models)
- Chatbots with a predefined conversational flow
- FastAPI/Flask backend, database/CRM integration, user authentication
- Clean, organized, scalable source code
Great for: customer support, FAQ assistants, internal company knowledge bots, personal AI assistants, document Q&A bots, voice agents, and website AI chatbot integration.
Tech stack: Python, LangChain, FastAPI/Flask, vector databases, Vapi, OpenAI/Gemini/open-source LLMs.
Before you order, please message me with your requirements so I can suggest the best package for your project.
Get to know Md Hasibul A
Business's pathway to Digital and Creative world
Level 2
- FromBangladesh
- Member sinceAug 2019
- Avg. response time1 hour
- Last delivery3 days
Languages
English, Dutch, German, Spanish

Acura
Auto Manufacturers

Bobcat
Hardware & Electronics

GREE SINGAPORE
Electronics
My Portfolio
FAQ
What do you need from me to get started?
Just your use case plus the content your bot should learn from: PDFs, FAQ docs, website links, notes, or other business data. If you prefer a specific LLM (OpenAI, Gemini, or open-source) or already have API keys, let me know. The clearer your requirements, the better I can tailor the solution.
Which AI models and LLMs do you work with?
I work with OpenAI, Gemini, and open-source LLMs, and I'll recommend the best fit for your budget and use case, whether that's a powerful hosted model or a self-hosted open-source one. Everything is built with Python, LangChain, and FastAPI for a clean, scalable result.
Can you build a voice agent, not just a text chatbot?
es. Alongside text AI chatbots and RAG chatbots, I build voice agent solutions and voice AI assistants using Vapi. These handle real-time conversations for support, bookings, or FAQs, with the same access to your documents and business data.
Will I get the full source code, and do I own it?
Yes. You receive clean, organized, and scalable source code that you fully own, with no lock-in. I structure every project so it's easy to maintain, extend, or hand off to another developer later.
Can you integrate the chatbot into my website, app, or CRM?
Absolutely. I provide a FastAPI/Flask backend so your bot can connect to your website, app, database, or CRM. I can also add user authentication and a predefined conversational flow so the experience fits your brand.
1 reviews for this Gig
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Rating Breakdown
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A adityamisra11_
Repeat Client

United Kingdom
I always come back he’s amazing! And I definitely recommend him to others he really tries to understand your brand first
Up to $50
Price
2 days
Duration
Helpful?
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
A adityamisra11_
Repeat Client

United Kingdom
I always come back he’s amazing! And I definitely recommend him to others he really tries to understand your brand first
Up to $50
Price
2 days
Duration
Helpful?
