I will build custom ai saas and rag agents using python and openai


About this gig
Stop settling for generic chatbots. Its time to build intelligent AI that actually works.
I am an Agentic AI & Full Stack Developer building custom solutions, not just simple API wrappers.
My Secret Weapon: Spec Driven Development Unlike developers who guess, I use a blueprint first approach. We define your project's exact logic before coding. This guarantees a bug free, scalable AI system that matches your vision perfectly saving you time on revisions.
What I Build: Custom AI SaaS: Full web apps Next.js + FastAPI with Auth, Stripe & Dashboards. RAG Agents: Smart chatbots that read your data PDFs/Docs via Vector DBs for accurate answers. Advanced Integrations: Connect OpenAI/Anthropic to SQL databases using Model Context Protocol (MCP).
My Tech Stack:
- Frontend: Next.js, React, Tailwind
- Backend: Python FastAPI, Node.js
- AI: OpenAI
- Data: PostgreSQL, MySQL
Why Me? Full Stack: I handle AI logic & UI design. Reliable: Spec driven means no surprises.
Ready to innovate? Please message me before ordering to discuss your specs!
Get to know Abdul Mannan
Building AI Powered SaaS with Next js and FastAPI
- FromPakistan
- Member sinceJul 2022
- Last delivery1 year
Languages
English
Other AI Development Services I Offer
FAQ
Do I need an OpenAI API Key immediately?
No! I use my own API key during the development and testing phase so you can see the working results without any setup hassle. Once I deliver the completed project and you are happy with it, I will guide you on how to simply paste your own API key to go live.
Can the chatbot learn from my specific business documents?
Yes! I use a technique called RAG (Retrieval-Augmented Generation). I upload your PDFs or data into a secure database, and the OpenAI model reads from them to answer questions accurately without hallucinating.
What is "Spec-Driven Development"?
This is my quality guarantee. Before coding, we agree on a detailed "Specification" blueprint of exactly how the AI will behave. This prevents bugs and ensures you get exactly what you envisioned.
Do you use generic website builders?
No. I build custom Full-Stack applications using Next.js (Frontend) and Python/FastAPI (Backend). This allows for complex features like user login, databases, and advanced AI logic that generic builders cannot handle.
Is the Source Code included?
Yes. For the Standard and Premium packages, you receive full ownership of the source code. For the Basic package, I provide the integration script.
Will you host the website for me?
I will help you deploy the application to your preferred cloud provider (like Vercel, Render, or AWS). I ensure it goes live, but the monthly hosting costs (if any) are paid by you to the provider.

