I will integrate openai, gemini or claude into your application


About this gig
Need to add AI to your existing application?
I can help you integrate OpenAI, Gemini, or Claude and build the application logic around it.
What I can help with
- OpenAI, Gemini & Claude integration
- AI chat and text generation
- Prompt engineering & prompt orchestration
- Structured LLM responses
- Tool / function calling
- RAG and document-based AI
- AI workflows and automation
- Integration with existing APIs
- Backend AI services using Node.js
I mainly work with JavaScript, TypeScript and Node.js, and I can work directly with your existing codebase rather than forcing you to rebuild your application.
I have hands-on experience building AI-powered applications involving RAG, vector databases, tool calling and multi-agent workflows.
Not sure what you need?
That's fine. Send me a description of your project and what you want the AI to do. I can help you figure out the right approach and whether OpenAI, Gemini, Claude, RAG, or another architecture makes sense for your use case.
Please message me before ordering if your project involves a complex existing application, RAG, multiple APIs, AI agents, or a custom workflow.
Get to know Nischay Sharma
Full Stack Developer
- FromIndia
- Member sinceFeb 2019
- Avg. response time1 hour
Languages
English, Hindi
My Portfolio
FAQ
Can you integrate AI into my existing application?
Yes. I can work with an existing codebase and integrate the AI functionality into your current application rather than requiring you to build everything from scratch.
Which AI models can you integrate?
I primarily work with OpenAI, Google Gemini, and Anthropic Claude. If you're using another provider, feel free to message me with the details.
Can you build an AI chatbot?
Yes. I can build AI chat functionality using an LLM and connect it with your application's backend, APIs, database, or other services depending on your requirements.
Can you build a RAG system using my documents?
Yes. I can build RAG-based applications that allow an LLM to work with your own documents or knowledge base. This can include document processing, embeddings, vector database integration, retrieval, and the LLM workflow.
Can you integrate AI with my existing API or backend?
Yes. I can connect the AI functionality with your existing backend, REST APIs, third-party services, or application workflows.
Can you implement function calling or AI tools?
Yes. I can implement tool/function calling when the AI needs to interact with APIs, services, or other parts of your application.
I don't know which AI model I should use. Can you help?
Yes. Send me your requirements and I'll help you determine which approach makes sense for your use case.
Can you deploy the AI integration?
Yes. Deployment assistance can be included depending on the package and your existing infrastructure. I have experience with AWS, GCP, nginx, SSL and CI/CD deployments.
Should I contact you before placing an order?
For simple integrations, you can choose the appropriate package directly. For RAG systems, AI agents, multi-step workflows, multiple APIs, or existing production applications, please message me first so I can review the requirements and confirm the scope.

