I will build custom ai agents with chatgpt langchain and rag for your data


Level 2
About this gig
Production AI agents that automate real work, not just chat.
I build custom AI agents with LangChain and your data. Agents that retrieve from your docs (RAG), call APIs, run workflows, and ship real outcomes.
WHAT I BUILD
- Custom AI agents with tool use, reasoning, and memory
- MCP servers and tools for Claude, Cursor, and other AI clients
- RAG agents over your data (PDFs, sites, Notion, DBs)
- Automation agents: lead gen, support, research, scheduling, email
- Workflow automation: Zapier, Make.com, n8n
- Multiagent systems with role collaboration
- Vector DBs: Pinecone, Weaviate, Chroma, FAISS
- Voice agents (Vapi), WhatsApp, Slack, Telegram, Discord bots
- AI SaaS and MVPs: Python, FastAPI, React, Next.js
TECH STACK
- APIs: GPT-4o, Claude 4.7, Gemini, and more
- Open source via Ollama: Llama, Mistral, DeepSeek R1, Falcon, Qwen for cost savings or on prem data privacy
- Frameworks: LangChain, LangGraph, CrewAI, AutoGen, LlamaIndex
- Deploy: GCP, AWS, Vercel, Docker
WHY ME
5+ years building production systems. Code ships with auth, observability, and docs not demos that break in week 2.
Click "Contact me" first. I'll review your case free in 1 hr and quote a custom package.
Get to know Ahsan
Bringing imagination to life through the power of AI
Level 2
- FromPakistan
- Member sinceMay 2022
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Urdu
My Portfolio
Other Software Development Services I Offer
FAQ
What's the difference between an AI agent and a chatbot?
A Chatbot answers questions; an agent takes actions. AI agents call APIs, query databases, retrieve from your custom data (RAG), execute multi-step workflows, and reason through tools to complete real tasks. If your use case is "do X, then Y, then report Z," you need an agent.
Can you build an agent that uses my custom data and documents?
Yes, that's a core part of what I do. I build RAG agents that retrieve from your PDFs, websites, Notion, MongoDB, Slack, or any source using vector databases (Pinecone, Weaviate, Chroma, FAISS). Your agent answers and acts on your actual data, not generic LLM training.
Which LLM do you recommend ChatGPT, Claude, or open-source?
Depends on use case and budget. ChatGPT (GPT-4o) for broad tool support and reasoning. Claude 3.5 for long context and nuance. Gemini for Google ecosystem. Open-source (Llama, Falcon, DeepSeek via Ollama) for cost or on-prem privacy. Message me your requirements and I'll recommend
Will you provide the source code and full ownership?
Yes. Standard and Premium include complete source code with full ownership and a usage license. Basic includes the working app; full source code is available as an extra.
Can you integrate the agent with my CRM, database, or APIs?
Yes. I integrate with HubSpot, Salesforce, Airtable, Notion, MongoDB, PostgreSQL, MySQL, REST APIs, GraphQL, webhooks, Zapier, n8n, and Make. If your tool has an API, I can integrate it.
Do you use LangChain, LangGraph, or another framework?
I primarily use LangChain for tool-calling agents, LangGraph for stateful and multi-agent systems, CrewAI/AutoGen for role-based collaboration, and LlamaIndex for advanced RAG. Choice depends on which architecture fits your problem best.
How do you handle hallucinations and prompt safety?
Production agents need guardrails. I implement retrieval grounding (RAG forces answers from your data), output validation, prompt injection defenses, evaluation tests against expected behavior, and observability (LangSmith / custom logging) so failures are spotted fast.
Can the agent run locally / on-prem for data privacy?
Yes. For sensitive data I deploy agents using Ollama with open-source LLMs (Llama, Falcon, Mistral, DeepSeek) on your own server, VPS, or local machine no data leaves your infrastructure.
Do you provide deployment and post-delivery support?
Yes. Premium includes deployment to GCP/AWS/Vercel and 30 days of post-delivery support. Standard includes deployment guidance. Support extensions are available as an extra.
How do we start should I order directly or message you first?
Please click "Contact me" before ordering. Most agent projects need 10–15 minutes of scoping (data sources, integrations, deployment). I'll review your case and quote a precise custom package so we both know exactly what you'll get.
39 reviews for this Gig
| (38) | ||
| (0) | ||
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| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
A alessandrolo108
Repeat Client

Italy
It's not the first time I'm requesting Ashan's services, and the reason why I come back it's simply his full commitment, extremely quick delivery and reliability. Thanks again, even this time everything was perfect!
Up to $50
Price
2 days
Duration
C 
Seller's Response
Helpful?V 
valdez2013

United States
Very Detailed Project Converting PDF's into Markdown Files for AI Engine
$200-$400
Price
3 weeks
Duration
Helpful?A alessandrolo108
Repeat Client

Italy
Everything properly delivered in time with exceptional quality. I'm impressed by Ashan professionalism and attention to deliver timing as agreed.
Up to $50
Price
5 days
Duration
Helpful?A alessandrolo108
Repeat Client

Italy
After a few sessions and some fine-tuning, my AI “Live Coach” for StarCraft 2 (extremely high pace RTS game) now works exactly as requested. It provides clear build orders by matchup, runs MACRO CYCLE reminders every 30 seconds, and gives solid guidance when strategies need to be adapted during the...
Up to $50
Price
1 day
Duration
Helpful?A alessandrolo108
Repeat Client

Italy
Ahsan sent me the Agent AI Live_Coach as requested, with all the features I had asked for, and it works perfectly. I’m very happy.
Up to $50
Price
3 days
Duration
Helpful?
39 reviews for this Gig
| (38) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
A alessandrolo108
Repeat Client

Italy
It's not the first time I'm requesting Ashan's services, and the reason why I come back it's simply his full commitment, extremely quick delivery and reliability. Thanks again, even this time everything was perfect!
Up to $50
Price
2 days
Duration
C 
Seller's Response
Helpful?V 
valdez2013

United States
Very Detailed Project Converting PDF's into Markdown Files for AI Engine
$200-$400
Price
3 weeks
Duration
Helpful?A alessandrolo108
Repeat Client

Italy
Everything properly delivered in time with exceptional quality. I'm impressed by Ashan professionalism and attention to deliver timing as agreed.
Up to $50
Price
5 days
Duration
Helpful?A alessandrolo108
Repeat Client

Italy
After a few sessions and some fine-tuning, my AI “Live Coach” for StarCraft 2 (extremely high pace RTS game) now works exactly as requested. It provides clear build orders by matchup, runs MACRO CYCLE reminders every 30 seconds, and gives solid guidance when strategies need to be adapted during the...
Up to $50
Price
1 day
Duration
Helpful?A alessandrolo108
Repeat Client

Italy
Ahsan sent me the Agent AI Live_Coach as requested, with all the features I had asked for, and it works perfectly. I’m very happy.
Up to $50
Price
3 days
Duration
Helpful?

