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Fiverr Pro
English
$
USD
I will integrate openai, claude API into your app or website
Nha Duong
About this gig
Add real AI to your product cleanly integrated, not bolted on.
I'm an experienced developer specializing in connecting large language models (OpenAI GPT, Anthropic Claude, Gemini, open-source models, and more) to real applications. Whether you have a web app, a backend service, or a tool that needs an AI feature, I'll build the integration properly: secure, efficient, and maintainable.
What I can build for you:
- Chat and conversational features (with streaming responses)
- Retrieval-augmented generation (RAG) over your own documents/data
- Text summarization, extraction, classification, and generation
- AI-powered search, tagging, or content workflows
- Prompt engineering and prompt optimization to cut token costs
- API key security, rate limiting, and error handling done right
How I work:
- I'm stack-flexible React, Node, Python, PHP, mobile, or no-code backends
- Clean, documented code you (or your team) can maintain
- Clear communication and realistic timelines, no vague promises
Before you order, send me a message describing your app and what you want the AI to do.
The price is just Fiverr's minimum, so let's talk and find the right price together.
Let's build something that works for you.
Get to know Nha Duong
Nha Duong
Senior Mobile and Full Stack Developer: React Native, iOS, Android, NestJS
- FromVietnam
- Member sinceMar 2022
- Last delivery1 month
Languages
English
Senior Mobile & Full-Stack Developer with 12+ years in iOS, 6+ years in React Native, 4+ years in NestJS. Skilled in Flutter and Android, delivering high-quality cross-platform and native apps. Experienced with Firebase, Supabase, and Azure Functions. Expanded to full-stack with Next.js, NestJS, and PostgreSQL. Now integrating AI into products — LLM-powered features, API integrations, and AI-driven workflows. Worked on Kitchenpal, LitterLotto, Secoti, Circular, Synapse, and YincQ. Reliable, responsible, and eager to deliver value.
*Note: The price shown is a minimum set by Fiverr*
Other Mobile App Development Services I Offer
FAQ
Which AI models do you work with?
OpenAI (GPT), Anthropic Claude, Google Gemini, and open-source models like Llama. I'll recommend the best fit for your use case and budget.
Do I need to provide my own API key?
Yes — you'll create and own your provider account so billing and data stay under your control. I'll guide you through setup if needed.
What do you need from me to start?
A description of your app, your tech stack, and what you want the AI to do. Access to the relevant code or repo when we begin.
Can you optimize my existing AI integration to reduce costs?
Absolutely — prompt and token optimization is one of the most common things I'm hired for.
