🤖AI Web Application

AI-Powered Tool Lovable Prompt

Build an AI-powered web tool that calls the OpenAI API to process user input and return results.

Quick answer

Use this Lovable prompt when you want to build a ai web application with clear screens, data structure, responsive UI, practical states, and a useful first version you can refine quickly.

OpenAI API integrationUsage limitsAuth gatingCopy to clipboardTone selectionLoading states

The Prompt

Ready-to-use Lovable prompt

Open Lovable

Build an AI-powered web tool with the following features:

**Core Functionality:**
- Input form where users enter their request (textarea, 3-5 lines minimum)
- A "Generate" button that calls the OpenAI API (GPT-4o) via a Supabase Edge Function
- Results displayed below in a formatted output card
- Loading state with spinner while the AI is processing
- Copy to clipboard button on the results

**Prompt Customisation:**
- Dropdown to select tone: Professional, Casual, Persuasive, Technical
- Dropdown to select output format: Paragraph, Bullet Points, Short, Detailed
- Optional: example input shown as placeholder text

**Usage Limits:**
- Free users get 5 uses per day (tracked in Supabase)
- Sign up required to unlock unlimited uses (Supabase Auth)
- Clear UI showing "3 of 5 free uses remaining"

**Landing Page:**
- Above-the-fold tool interface so users can try immediately without sign-up
- Below: short description of what the tool does, 3 use cases, and a "How it works" section

**Design:**
- Clean, centred layout
- White background with your brand colour as accent
- Fully responsive
- Inter font

Use OpenAI GPT-4o via a Supabase Edge Function (store the API key as a Supabase secret, never expose it on the frontend).

Best for

AI Web Application

Intent

Copy-ready Lovable build prompt

Difficulty

2/5

How to Use This Prompt

1
Copy the prompt
Use the copy button above so you keep the full structure intact.
2
Open Lovable
Start a new project in Lovable using the official Lovable site.
3
Paste and send
Paste the prompt as the first message before asking for small edits.
4
Iterate carefully
Improve one screen, flow, or state at a time so Lovable has clear direction.

Pro Tips

->Always use 'Supabase Edge Function' to call OpenAI — never expose your API key on the frontend
->Include 'usage limits for free users' upfront so you can monetise with a freemium model
->Ask for 'loading spinner with cancel button' — AI calls can be slow and users need feedback

When to Use This Prompt

Use this prompt when you want Lovable to create a focused ai web application instead of a vague app shell. It is best for builders who already know the audience, the main workflow, and the first useful version they want to test.

Do not treat the prompt as a final product specification. Treat it as a strong starting brief. After Lovable creates the first version, review the result against the real user journey: what the user sees first, what action they should take, what happens after success, and what should appear when there is no data yet.

How to Customize the Prompt

Audience

Replace placeholder text with the exact user: founders, students, agencies, customers, admins, sellers, members, or job seekers.

Workflow

Name the main action from start to finish, such as booking, checkout, applying, generating, submitting, approving, or saving.

Data

Add the objects Lovable should model, such as users, projects, products, listings, invoices, bookings, messages, or saved items.

Launch needs

Add analytics, forms, custom domain, GitHub, Supabase, Stripe, security, or production-readiness requirements only when they matter.

Quality Checklist Before You Publish

The homepage or first screen explains the product clearly.
The main workflow can be completed without confusion.
Forms have labels, validation, success states, and error states.
Mobile layout works without horizontal scrolling.
Empty states explain what to do next.
Authentication, database, payments, and AI calls are reviewed before production.
Analytics and conversion events are ready before traffic is sent.
The next revision request is specific instead of asking Lovable to rebuild everything.

Follow-up Prompts to Improve the First Draft

After the first build, ask Lovable for narrow improvements. For example: improve the mobile layout, add realistic sample data, create an admin view, simplify the onboarding, add empty states, improve the CTA copy, or make the dashboard easier to scan.

Avoid stacking too many changes in one follow-up. Smaller revision prompts make it easier to keep the project stable and understand which change improved the app.

Prompt Variations

Use these versions when your project has a more specific angle.

Writing assistant

Build an AI writing assistant. Input: a topic or rough draft. Output: polished, professional prose. Options: Choose writing style (Blog post, LinkedIn post, Email, Press release, Tweet thread). Tone selector: Professional, Conversational, Persuasive. Word count slider: 100-500 words. Show a character/word count on the output. Include a 'Regenerate' button for alternatives.

Frequently Asked Questions

Does Lovable support OpenAI API integration?

Yes. Lovable can build apps that call the OpenAI API via Supabase Edge Functions. Your API key stays secure on the server side and is never exposed to users.

Can I build a ChatGPT-style chatbot with Lovable?

Yes. Ask Lovable to 'build a chat interface with message history, streaming responses from OpenAI GPT-4o, and a clear chat button.' Lovable will build the full chat UI and API integration.