I will integrate ai or llm API into your app using fastapi or nodejs


About this gig
`Are you looking to add AI or LLM capabilities to your existing app without a complete rebuild?
I integrate AI/LLM APIs (OpenAI, Claude) into your existing web app or backend using FastAPI or Node.js from simple API connections to full AI-powered features that use your own business data.
What you'll get:
- Clean integration into your existing codebase, no unnecessary rebuilds
- AI responses connected to your database when needed
- Secure API key handling and error-safe implementation
- Well-tested, documented code not throwaway scripts
- Production-ready deployment support
Why work with me:
- Real backend experience (FastAPI, Node.js, PostgreSQL, MySQL) beyond just AI wrappers
- Honest timelines, no overpromising
- Direct communication, quick responses
- Code you can actually maintain and extend later
Whether you need a simple AI feature or a fully connected AI-powered backend, I deliver clean, reliable integrations. Feel free to message me before ordering to discuss your project.`
Get to know S M Samiul
Your next hire thinks like a founder, builds like an engineer
- FromBangladesh
- Member sinceJan 2026
- Avg. response time1 hour
Languages
Bengali, English
My Portfolio
FAQ
Do I need to already have an AI/OpenAI or Claude account?
Yes, you'll need your own API key from OpenAI, Anthropic, or your preferred provider. I'll guide you through getting one if you don't have it yet.
Will the AI use my own business data, or just general knowledge?
Both are possible. On Standard and Premium packages, I connect the AI to your database so responses are based on your actual business data, not just general knowledge.
Can you work with my existing codebase, or does it need to be rebuilt?
I integrate into your existing FastAPI or Node.js backend. No unnecessary rebuilds — I work with what you already have.
Is the code documented and easy to maintain later?
Yes, I deliver clean, well-commented code with clear structure, so your team (or any future developer) can maintain and extend it easily.
What if I'm not sure which AI provider (OpenAI, Claude, etc.) to use?
No problem, message me with your use case and I'll recommend the best option based on cost, performance, and your specific needs.
Do you handle API costs and rate limits?
I implement proper error handling and rate-limit management, but the AI provider's usage costs (OpenAI/Claude billing) are separate and paid directly by you to them.
Can I contact you before ordering to discuss my specific project?
Of course, please message me with details about your app and what you want the AI to do. I'll confirm feasibility and recommend the right package.

