AI Humanization &
Detection API
Integrate industry-leading AI humanization and detection into your products. Two simple endpoints, production-ready infrastructure, and simple usage-based pricing.




import axios from 'axios';
axios.post('https://business.phrasly.ai/api/v1/humanize', {
text: "AI-generated text to humanize..."
}, {
headers: {
'content-type': 'application/json',
'x-api-key': 'YOUR_API_KEY'
}
})
.then(res => console.log(res.data))
.catch(err => console.error(err));Two APIs, One Platform
Build with AI Detection & Humanization
Two powerful endpoints to analyze and transform text. Easy to integrate, built for scale.
Transform AI Text to Human
Rewrite AI-generated content to read naturally and pass all major AI detectors.
- Passes Turnitin, GPTZero, Copyleaks & more
- Preserves original meaning and tone
- Streaming support for real-time results
- 20-5,000 words per request
Detect AI-Generated Content
Analyze text to determine the likelihood it was generated by AI with detailed confidence scoring.
- Sentence-level AI probability scoring
- Overall document confidence percentage
- Fast response times under 2 seconds
- 50-15,000 characters per request
& More
See It in Action
Everything you need, one platform
Monitor usage, manage API keys, and test every endpoint from a single intuitive dashboard.
Real-time analytics at a glance.
See your credit balance, word count, and costs broken down by day. Track usage across all your API keys from one place. Invite team members and manage permissions with ease.


Humanize & detect text right in your browser.
Don't want to write code just yet? Our interactive tools let you use the humanizer and detector APIs directly from your dashboard. Now with support for batch processing, so you can humanize or detect documents in one go.
Our Technology
The best humanization API. Period.
Purpose-built models, optimized inference, and the lowest prices in the industry. Phrasly is the only API that combines unmatched quality with unbeatable affordability.
Lowest Prices in the Industry
Our industry-leading quantization methods let us run inference at a fraction of the cost. We pass those savings directly to you, making Phrasly the most affordable humanization API available.
Unmatched Output Quality
Purpose-built models trained exclusively for humanization and detection, not repurposed general-purpose LLMs. Our output consistently bypasses every major AI detector on the market.
Built for Scale & Speed
We own the full stack, from models to inference to infrastructure. Sub-2 second response times, 99.9% uptime, and an API designed to handle millions of requests without breaking a sweat.
Built for production workloads
High availability, low latency, and comprehensive documentation. Everything you need to ship with confidence.
Reliable & Consistent
Our API delivers consistent results with 99.9% uptime. Every request is processed with the same high-quality output.
Fast & Scalable
Process thousands of requests per minute. Our infrastructure auto-scales to handle your workload.
Real-Time Responses
Get results in seconds, not minutes. Streaming support available for humanization requests.
24/7 Dedicated Support
Our team is available around the clock to help you integrate and troubleshoot. Priority support for all business customers.
Frequently Asked Questions
The Phrasly Business API provides two core services: AI Detection (analyze text to determine if it was AI-generated) and AI Humanization (rewrite AI-generated text to read more naturally and pass AI detectors).
Your $100/month subscription includes $100 in API credits. That's up to 714,000 humanization words or 5,000,000 detection words. Any usage beyond your included credits is billed as overage at the same per-word rates.
Our humanizer is tested against all major AI detectors including Turnitin, GPTZero, Copyleaks, Originality.ai, and Winston AI.
Business accounts have generous rate limits suitable for production use. Contact us if you need higher throughput for enterprise workloads.
Sign up for a business account, subscribe to the plan, and generate your API key. You can start making API calls immediately.
Ready to get started?
Start integrating Phrasly's AI APIs into your application today. Simple pricing, powerful results.