Technology · 3 projects

OpenAI API integration for real business workflows

The OpenAI API gives software access to language models that can read, summarise, classify and generate text. I build these models into specific steps of a product or workflow, such as drafting replies, extracting fields from documents or answering questions from your own content, with limits on cost and clear points where a person reviews the output.

When OpenAI API is a good fit

  • Extracting structured data from emails, PDFs, invoices or forms
  • Assistants that answer questions from your documentation or product data
  • Drafting replies, summaries or descriptions that a person approves before sending
  • Classifying and routing incoming messages, tickets or leads
  • Prototyping an AI feature quickly before deciding whether to invest further

When I'd suggest something else

  • Decisions that must be exactly right every time, such as calculations or legal judgements, without a human review step
  • Data that is not allowed to leave your infrastructure, where a self-hosted model or a different provider agreement may be needed

How I work with OpenAI API

Narrow, testable tasks

Each AI step has a clear input and output, and is checked against a set of real examples before and after changes.

Structured outputs

Responses are returned as validated JSON so the rest of the system can rely on them, with fallbacks when validation fails.

Cost and rate controls

Model choice per task, caching, token limits and usage logging keep monthly spend visible and predictable.

Provider flexibility

The model call sits behind one interface, so switching to another provider or model later does not mean rewriting the feature.

Projects built with OpenAI API

Schooliee AI-Based School System website screenshot

Schooliee AI-Based School System

Pakistan's first AI-based school management system featuring automated parent WhatsApp notifications, rosters setup, attendance, and fee alerts.

  • Next.js
  • TypeScript
  • TailwindCSS
  • WhatsApp Cloud API
  • OpenAI API
  • PostgreSQL
WhatsApp Store AI Assistant website screenshot

WhatsApp Store AI Assistant

AI-powered conversational sales assistant transforming WhatsApp into an automated store with instant replies and product management.

  • Node.js
  • Express.js
  • WhatsApp Cloud API
  • OpenAI API
Banana Arena AI Studio website screenshot

Banana Arena AI Studio

AI-powered creative studio allowing users to generate high-resolution AI portraits, enhance images, remove backgrounds, and apply style filters.

  • Next.js
  • TypeScript
  • OpenAI API
  • TailwindCSS

Browse OpenAI API projects in the archive

Frequently asked questions

Will our data be used to train the model?

It depends on the provider, the product and your plan, and these policies change. I check the current data-usage and retention terms for the account you will use and, where needed, avoid sending sensitive fields at all.

How much will the API cost to run?

It depends on the model, how much text each request processes and how often it runs. I estimate usage from real sample data during the build and set limits and alerts so costs stay within a budget you choose.

Can it answer questions from our own documents?

Yes, usually with retrieval: your documents are indexed and the relevant passages are sent with each question, so answers are grounded in your content and can cite their sources.

Do we have to use OpenAI specifically?

No. I often use OpenAI, but the same features can run on other providers. The choice depends on quality for your task, cost, data terms and region.

Need a OpenAI API developer?

Tell me about your product, your current stack and your timeline. I will reply with questions and a practical next step.

Request a quote