How to Build an AI Text Humanizer & Earn Money with AI Pass
How to Build an AI Text Humanizer & Earn Money with AI Pass
Want to build an AI-powered app and actually make money from it? This tutorial walks you through building a text humanizer using the AI Pass SDK — step by step. Every API call your users make earns you commission.
What You'll Build
A web app that rewrites AI-generated text to sound human. Users paste text, pick tone + intensity, and get natural-sounding output. You earn a cut of every API call.
Live example: AI Text Humanizer on AI Pass
How You Make Money
AI Pass adds a small commission on each API call. As the app developer, you get 50% of that commission. More users = more calls = more revenue. No subscriptions to manage, no API keys to handle — AI Pass does all of that.
Step 1: Create an AI Pass Account
- Go to aipass.one and sign up
- Verify your email (required for payouts)
- You get $1 free credit to test with
Step 2: Create an OAuth2 Client
This is how AI Pass knows the API calls came from YOUR app.
- Go to Developer Dashboard → OAuth2 Clients
- Click "+ Register New Client"
- Fill in your app name (e.g., "My Text Humanizer")
- Set a redirect URI (e.g.,
https://yourdomain.com/callbackorhttps://aipass.one/apps/your-slugif hosting on AI Pass) - Save — you'll get a Client ID (looks like
client_XXXX)
⚠️ The Client ID is NOT your app slug. It's a unique identifier from the OAuth2 Clients page. Copy it carefully.
Step 3: Set Up the SDK
Include the AI Pass SDK in your HTML and initialize it with your Client ID:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>AI Text Humanizer</title>
<script src="https://aipass.one/aipass-sdk.js"></script>
</head>
<body>
<!-- Your app UI here -->
<script>
// Initialize with YOUR Client ID from the Developer Dashboard
AiPass.initialize({
clientId: 'client_YOUR_CLIENT_ID', // from OAuth2 Clients page
requireLogin: true, // shows login screen automatically
darkMode: true // optional: dark theme for auth modal
});
</script>
</body>
</html>
requireLogin: true is important — it automatically shows a login/signup screen when users first visit. They create an AI Pass account (or log in), get $1 free credit, and start using your app. You don't need to build any auth UI yourself.
Step 4: Build the Humanizer Logic
The core is one function that calls AiPass.generateCompletion():
const TONES = {
professional: 'Write in a clear, confident professional tone. Direct statements, measured authority.',
casual: 'Write in a relaxed, conversational tone. Use contractions, shorter sentences, occasional humor.',
academic: 'Write in a scholarly yet readable academic tone. Precise terminology, structured argumentation.',
creative: 'Write with personality and flair. Vivid language, unexpected word choices, metaphors.'
};
const INTENSITY = {
light: 'Make minimal changes. Fix obvious AI patterns. Keep 90%+ original wording.',
balanced: 'Rewrite moderately. Restructure half the sentences, replace generic AI phrases.',
aggressive: 'Deeply rewrite everything. The output should feel like a completely different writer.'
};
async function humanize(text, tone, intensity) {
try {
const r = await AiPass.generateCompletion({
model: 'openai/gpt-4.1-mini', // cheap & fast
messages: [
{
role: 'system',
content: `You are an expert editor who transforms AI-generated text into natural human writing. ${TONES[tone]} ${INTENSITY[intensity]} Only return the rewritten text. No explanations.`
},
{ role: 'user', content: text }
]
});
return r.choices[0].message.content;
} catch (err) {
console.error('Humanize failed:', err);
// SDK auto-handles budget exceeded (shows payment modal)
throw err;
}
}
Step 5: Add the UI
Build a simple form with:
- Textarea for input text (max ~5,000 chars)
- Tone selector — 4 buttons or dropdown (Professional, Casual, Academic, Creative)
- Intensity selector — 3 levels (Light, Balanced, Aggressive)
- "Humanize" button — calls
humanize()and shows the result - Output area with a copy-to-clipboard button
- Word count display (before/after)
The SDK handles everything else — login, payments, balance display.
Step 6: Embed or Deploy
Option A: Host on AI Pass — Submit your app to the AI Pass catalog. Your app gets its own page at aipass.one/apps/your-slug.
Option B: Embed on your own site — Every AI Pass app has an embed button (bottom-right </> icon). Click it to get an iframe code you can paste into any website, WordPress, Notion, etc. Your app, your domain, AI Pass handles the backend.
Available SDK Methods
| Method | Purpose | Returns |
|---|---|---|
generateCompletion({model, messages}) |
Text generation | r.choices[0].message.content |
generateImage({model, prompt, size}) |
Image generation | r.data[0].url |
editImage({model, prompt, image}) |
Image editing | r.data[0].url |
generateVideo({model, prompt}) |
Video generation | videoId (then poll) |
generateSpeech({model, input, voice}) |
Text to speech | Audio blob |
transcribeAudio({model, file}) |
Speech to text | Transcription text |
isAuthenticated() |
Check login state | Boolean |
getUserBalance() |
Get user credits | Balance object |
Available Models
Text (cheap & fast): openai/gpt-4.1-mini, google/gemini-2.5-flash-lite
Text (quality): anthropic/claude-sonnet-4-5, openai/gpt-4.1
Image Generation: flux-pro/v1.1, flux-pro/v1.1-ultra, imagen4/preview/ultra
Image Editing: gemini/gemini-3-pro-image-preview
SDK Documentation
Full SDK reference: aipass.one/aipass-sdk.js (source code, well-documented)
Summary
- Sign up at aipass.one
- Create an OAuth2 Client → get your Client ID
- Include the SDK →
AiPass.initialize({ clientId: 'YOUR_CLIENT_ID', requireLogin: true }) - Build your UI + call
AiPass.generateCompletion() - Deploy or embed
- Earn commission on every API call your users make
Questions? Check the Developer Dashboard or explore the AI Pass blog for more tutorials.
Related
- Humanizer App — Try the live app
- Humanize AI Text Guide — User guide
- AI Humanizer Skill for Agents — API skill for AI agents
Skill File
---
name: aipass-text-humanizer
description: Build an AI Text Humanizer app on AI Pass. Users pay per use, you earn commission. No API key management needed.
version: 2.0.0
---
# Build an AI Text Humanizer on AI Pass
## Overview
Create a web app that rewrites AI-generated text to sound human. Users authenticate via AI Pass, pay per use. You earn commission on every API call.
## Prerequisites
1. AI Pass account — sign up at https://aipass.one
2. OAuth2 Client — create at Developer Dashboard → OAuth2 Clients → get your Client ID
## SDK Setup
```html
<script src="https://aipass.one/aipass-sdk.js"></script>
<script>
// Client ID from Developer Dashboard → OAuth2 Clients (NOT the app slug!)
AiPass.initialize({
clientId: 'client_YOUR_CLIENT_ID',
requireLogin: true,
darkMode: true
});
</script>
```
## Core Logic
```javascript
async function humanize(text, tone, intensity) {
const r = await AiPass.generateCompletion({
model: 'openai/gpt-4.1-mini',
messages: [
{ role: 'system', content: `You are an expert editor. Rewrite to sound human. ${TONES[tone]} ${INTENSITY[intensity]} Only return rewritten text.` },
{ role: 'user', content: text }
]
});
return r.choices[0].message.content;
}
```
## Key Points
- `requireLogin: true` shows auth screen automatically — no custom login UI needed
- SDK handles payments, balance, budget exceeded modals
- Client ID comes from OAuth2 Clients page (looks like `client_XXXX...`), NOT the app slug
- Response: `r.choices[0].message.content`
- Model: `openai/gpt-4.1-mini` (cheap) or `anthropic/claude-sonnet-4-5` (quality)
- Embed anywhere: use the </> button (bottom-right) to get iframe code for your website
## Live Example
https://aipass.one/apps/humanizer