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Fiverr Pro
English
$
USD
I will integrate openai, llm and ai agents into your app
Denys K
Vetted Pro
Top Rated
Vetted by Fiverr Pro
Denys K was selected by the Fiverr Pro team for their expertise.
About this gig
Add powerful AI features to your existing web app or SaaS product.
I'm a Top Rated Fiverr Pro with 12+ years of experience and 2,000+ completed orders. My studio helps integrate OpenAI, LLM APIs, RAG, and AI agents into existing applications.
What I can help with:
- OpenAI API integration and AI chat
- LLM-powered features and structured outputs
- RAG search using an agreed knowledge source
- AI agents with defined tool/API actions
- Backend and database integrations
Important:
An existing, accessible application with reviewable code is required. Screens refer to integration scope, not new UI/UX design.
New SaaS development, custom model training, major refactoring, complex security work, and ongoing maintenance require separate scoping.
API usage and third-party fees are paid by the client. Hosting setup is included only where selected in the package.
Message me with your tech stack, codebase, API documentation, data sources, and acceptance criteria before ordering.
Gig milestonesNEW
Choose to pay for your project per milestone by only paying when it’s time to start a new one or decide on a 1-time payment.
- Basic Package.
- 1st Milestone: Planning1-day delivery · No revisions$60Pay now
I'll use your provided requirements to start planning your website.
- 2nd Milestone: Development2-day delivery · 1 revision$90Pay later
I'll develop the website and deliver a working product for your review.
These are the steps we’ll follow to complete your project.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Denys K
Denys K
Vetted Pro
I Design and Build High Converting Websites and SaaS Products
Top Rated
Denys K is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
App Design
Design Consultation
Game Art
Icon Design
Infographic Design
Landing Page Design
Social Media Design
UX Design
Video Ads & Commercials
Video Consultation
Website Design
Website Development
- FromUkraine
- Member sinceApr 2020
- Avg. response time1 hour
- Last delivery1 day
Languages
English, Ukrainian, Spanish, German, French
I’m a Fiverr Pro designer and studio lead with 12+ years of experience and 2,000+ completed orders.
I design and build websites, SaaS products and web apps — from UX and Figma design to a finished Framer, Webflow, WordPress or custom build.
I work mainly with startups and established businesses that need a complete redesign, a new product interface, or a website ready for launch.
Among my clients
qlair
Information Technology (IT)
FactoryQA
Software Development
LAMS Foundation
Education Organization
Oregon's Adventure Coast: Coos Bay, North Bend, Charleston
Fiverr
Internet Software & Services
My Portfolio
Other Website Development Services I Offer
FAQ
Can you integrate OpenAI into my existing web application?
Yes. I can integrate OpenAI or another suitable LLM API into an existing web app, SaaS product, dashboard, portal, or custom application.
Can you build a RAG system for my documents or knowledge base?
Yes. I can implement retrieval-based AI workflows using your documents, database, or knowledge source when the project scope supports it.
Do you build AI agents?
Yes. Premium covers one defined agent workflow with up to two agreed tool/API actions. Multi-agent systems, complex orchestration and additional workflows require a custom quote.
Can you work with an existing codebase?
Yes. Please provide the tech stack, repository access details, current architecture, and a clear description of the feature you need.
Which AI models or providers can you integrate?
The implementation can use OpenAI or another suitable LLM provider depending on your existing stack, requirements, and available APIs.
Is model training or fine-tuning included?
Not by default. This Gig focuses on AI integration, agents, RAG, APIs, and application workflows. Custom training should be scoped separately.
Can you connect the AI feature to my database?
Yes. Database integration can be included when required for user data, application context, retrieval, or AI workflows.
Can you deploy the finished integration?
Hosting setup is included in Standard and Premium. For Basic, it is available as a paid Extra. Hosting fees, API usage and subscriptions are paid separately by the client.infrastructure is provided and the scope is agreed in advance.
What do you need before starting?
I need the project goal, current tech stack, required AI functionality, available APIs or data sources, and access to the relevant codebase when applicable.
Should I contact you before ordering?
Yes, especially for agent systems, RAG, existing applications, multiple integrations, or projects with an undefined technical scope.
