I will build ai web app or integrate ai into your saas


Level 2
About this gig
Hi! I'm a full-stack developer with 5+ years of experience building AI-powered web apps, SaaS platforms and custom features using React, Next.js, Node.js, NestJS and AI APIs like OpenAI, Gemini or Claude.
I can help you add AI to your existing product or build a new AI web app from scratch.
What I can build:
- AI chatbots and assistants
- OpenAI, Gemini or Claude API integrations
- AI-powered dashboards
- Content generation tools
- Text or document analysis
- Custom AI workflows
- Chat history and saved responses
- Usage limits to control AI costs
- Admin panels and SaaS features
Tech stack:
React, Next.js, Node.js, NestJS, Express, MySQL, PostgreSQL, MongoDB, Tailwind CSS, OpenAI API, Gemini API, Claude API and third-party APIs.
Why work with me:
- 5+ years of full-stack experience
- Built and launched my own SaaS product
- Clean and maintainable code
- Fast communication
- Honest project scoping
Please message me before ordering so we can review your idea, define the scope and choose the right package.
Get to know Mathias
Hi! my name is Mathias and i love develop and design websites
Level 2
- FromUruguay
- Member sinceAug 2021
- Avg. response time1 hour
- Last delivery3 weeks
Languages
English, Spanish
FAQ
Can you integrate OpenAI or ChatGPT into my app?
Yes. I can integrate OpenAI, ChatGPT, Gemini, Claude or other AI APIs into your React, Next.js or SaaS web app.
Can you build an AI app from scratch?
Yes. I can build an AI-powered web app from scratch, including frontend, backend, database, authentication and deployment depending on the selected package.
Can you save chat history or AI responses?
Yes. I can save prompts, AI responses, conversations, user activity or generated content in a database.
Can you add usage limits to control AI costs?
Yes. I can add usage limits by user, plan or account to help control API usage and avoid unexpected AI costs.
Do I need to provide my own API key?
Yes, you should provide your own API key for services like OpenAI, Gemini or Claude. I can guide you on how to create and configure it.
Should I contact you before ordering?
Yes, please message me before placing an order. AI projects can vary a lot, so we should review the scope, features and best package first.
