I will build a full stack web app with ai features


About this gig
Have an app idea that needs a real front end, a backend and a few smart AI features? I build small full stack web apps (React + TypeScript + Python FastAPI) with LLM features wired in, so the AI part lives inside a working product, not a demo.
WHAT YOU GET
- React + TypeScript front end and FastAPI back end in one repo
- AI features such as summarize, classify, rewrite, generate text or chat-style Q&A
- LLM calls (OpenAI or DeepSeek) with structured output, input validation, retries and rate limiting
- Loading and error states, so a slow or failed AI call never breaks the page
- Source code, README and run instructions
- Render deploy guide (Premium)
WHY THIS APPROACH
LLM calls are slow and can be wrong. I keep API keys on the server, check model output against a schema, and show failures instead of hiding them. I have built and deployed an LLM-powered app with confidence scores, a human review screen and 300+ backend tests.
BEFORE YOU ORDER
Message me the app idea and the AI feature you want. You supply your own OpenAI or DeepSeek API key. No Docker or long-term maintenance, and no promise of AI answer accuracy.
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Get to know Qin Xinyang
Python scraping, data automation, Chinese sites specialist
- FromChina
- Member sinceAug 2026
- Avg. response time1 hour
Languages
Chinese, English
