I will build an ai agent with rag, langchain, and knowledge base chatbot


About this gig
Need an AI agent that actually knows your business, not a generic chatbot guessing answers?
I build agentic AI systems using RAG (Retrieval-Augmented Generation), multi-tool agents, and persistent memory. Your agent retrieves real answers from your own documents, database, or knowledge base, takes actions like bookings and CRM updates, and remembers context across a conversation.
What I Build:
- RAG Chatbot trained on your docs, PDFs, website, or database for accurate answers
- Multi-Tool AI Agent retrieval, calculations, and CRM actions in one agent
- Multi-Agent Systems specialist agents coordinated by an orchestrator
- Conversation Memory persistent, multi-turn context, no repeated questions
- Hybrid Search and Reranking for high-accuracy retrieval at scale
- Production Reliability retry logic, graceful error handling
Stack: n8n, LangChain concepts, Supabase, OpenAI, Gemini, Claude, Airtable
10+ years real business experience. Every agent tested on real edge cases, built with retry logic and error handling for reliability. Systems built in your own accounts, full ownership.
Get to know Usman Khan
AI Automation Architect for Vapi Voice Agents, RAG and n8n Systems
- FromPakistan
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English
My Portfolio
Other AI Development Services I Offer
FAQ
Q: Do I need technical skills to manage this system?
A: No, I set everything up and hand it over with documentation. You need your own accounts on the platforms used since the system is built for full ownership.
Q: How are AI and database costs managed?
A: Platform costs like LLM API usage and vector database are billed to your own account. I only charge for my build time.
Q: Can the agent be trained on my own documents?
A: Yes, PDFs, website content, spreadsheets, or a database can all be used as the knowledge source.
Q: What makes this different from a basic chatbot?
A: A basic chatbot follows scripts. This agent retrieves real information, takes actions, and remembers conversation context across turns.
Q: Do you provide support after delivery?
A: Yes, post delivery support is included, with ongoing maintenance available.

