You will get AI or LLM API integration for your web app
Project details
I will integrate practical AI/LLM functionality into your existing web application using APIs such as OpenAI, DeepSeek, Gemini, or Claude, depending on your requirements.
This service is ideal for features such as structured data extraction, text classification, summarization, AI-generated replies, conversational interfaces, and other language-based workflows.
I focus on reliable application integration rather than model training. I can connect the AI API to your existing frontend/backend, design prompts and structured outputs, add validation and business logic, and deliver clean source code with setup instructions.
The Starter package covers one focused AI integration. Standard is designed for a complete AI feature with additional logic and validation. Advanced supports a multi-step workflow and database integration.
API usage fees, third-party subscriptions, and major redesigns of your existing application are not included. For a larger SaaS, RAG system, complex agent platform, or extensive new application, please message me on Upwork before ordering so we can confirm the scope.
This service is ideal for features such as structured data extraction, text classification, summarization, AI-generated replies, conversational interfaces, and other language-based workflows.
I focus on reliable application integration rather than model training. I can connect the AI API to your existing frontend/backend, design prompts and structured outputs, add validation and business logic, and deliver clean source code with setup instructions.
The Starter package covers one focused AI integration. Standard is designed for a complete AI feature with additional logic and validation. Advanced supports a multi-step workflow and database integration.
API usage fees, third-party subscriptions, and major redesigns of your existing application are not included. For a larger SaaS, RAG system, complex agent platform, or extensive new application, please message me on Upwork before ordering so we can confirm the scope.
AI Algorithms
Large Language ModelAI Applications
Conversational AI, Natural Language Generation, Natural Language UnderstandingAI Models
ChatGPTWhat's included
| Service Tiers |
Starter
$99
|
Standard
$249
|
Advanced
$499
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 1 | 2 | 2 |
AI Model Integration | |||
Batch Normalization | - | - | - |
Database Integration | - | - | |
Detailed Code Comments | - | ||
Image Upscaling | - | - | - |
MLOps | - | - | - |
Model Deployment | - | - | - |
Model Documentation | - | - | - |
Model Monitoring | - | - | - |
Model Testing & Optimization | - | - | - |
Model Tuning | - | - | - |
Natural Language Processing | - | ||
NLP Tokenization | - | - | - |
Pre-Training | - | - | - |
Prompt Engineering | |||
Setup File | |||
Source Code |
Frequently asked questions
About Eric
AI Integration & Internal Tools Developer | Next.js & TypeScript
Cangzhou, China - 5:21 am local time
I work with Next.js, TypeScript, Python, LLM APIs, and third-party APIs — from understanding the workflow and designing the data flow to shipping a working first version.
Recently, I built a B2B AI Inquiry Copilot that converts unstructured customer messages into structured requirements, identifies missing or uncertain information, matches candidate products, and generates quotation and customer reply drafts.
I focus on reliable AI integration: LLMs handle language understanding, while business-critical data and rules can be validated with deterministic application logic instead of blindly trusting model output.
My experience also includes Python automation, REST API integration, WebSocket-based real-time data processing, monitoring and alerting tools, API adapters, and cloud-deployed services.
I can help with:
• AI / LLM API integration
• AI-powered web applications and internal tools
• Next.js / TypeScript development
• Python automation and scripting
• REST API and third-party API integration
• Structured data extraction and validation
• WebSocket and real-time data workflows
• Rapid AI MVPs and prototypes
If you have a clear workflow, sample inputs, or an existing application that needs an AI feature, I can help turn it into a working implementation quickly.
Steps for completing your project
After purchasing the project, send requirements so Eric can start the project.
Delivery time starts when Eric receives requirements from you.
Eric works on your project following the steps below.
Revisions may occur after the delivery date.
Review requirements and integration scope
I review your existing application, desired AI behavior, sample inputs/outputs, and selected LLM provider before implementation.
Build and test the AI integration
I implement the agreed AI feature, prompts, API integration, structured output or business logic, and test the main workflow.