Developer tools
AI Detector API
Integrate AI content detection into your application with a simple REST API. Detect ChatGPT, Claude, and Gemini content programmatically with the engine that scored 95.2% accuracy and 3.1% false positives in our April 2026 benchmark (500 texts).
<2s
avg response time
95.2%
accuracy, April 2026 benchmark
3.1%
false positives, same benchmark
Get started in minutes
A single POST request is all you need
import requests
response = requests.post(
"https://api.aidetectors.io/v1/detect",
headers={
"Authorization": "Bearer YOUR_API_KEY",
"Content-Type": "application/json"
},
json={
"text": "Your text to analyze...",
"options": {
"sentence_scores": True
}
}
)
result = response.json()
print(f"AI Probability: {result['ai_probability']}%")
print(f"Flagged sentences: {len([s for s in result['sentences'] if s['ai_score'] > 50])}"){
"ai_probability": 94.7,
"human_probability": 5.3,
"confidence": "high",
"sentences": [
{ "text": "Your text...", "ai_score": 97.2 },
{ "text": "More text...", "ai_score": 91.1 }
],
"word_count": 156,
"processing_time_ms": 1240
}Try the detection engine
This interactive demo uses the same engine behind the API. Paste any text to see results.
Paste or upload your text
Detection details
- PerplexityHow predictable each word is
- BurstinessVariation in sentence length
- N-gram patternsRepeated phrase signatures
- Stylometric fingerprintAuthor-level writing traits
Built for production
Enterprise-grade AI detection infrastructure you can rely on
Fast Response Times
Average response time under 2 seconds for texts up to 5,000 words. Built for production workloads.
Benchmark-tested engine
Same detection engine that powers aidetectors.io: 95.2% accuracy and 3.1% false positives in our April 2026 benchmark (500 texts). Detects ChatGPT, GPT-4, Claude, Gemini, LLaMA, and more.
Simple REST API
Clean JSON request/response format. Get started with a single POST request from any language with an HTTP client.
Hosted on a global edge network
Served from a global CDN with rate limits designed for production use.
Detailed Results
Overall AI probability and sentence-level scores in every response.
Privacy by default
Your text is encrypted in transit and is not used to train our models.
Simple, transparent pricing
Start free, scale as you grow
Starter
100 requests/month
- Overall AI probability score
- Up to 1,000 words per request
- Community support
- API key dashboard
Developer
5,000 requests/month
- Sentence-level scores
- Up to 5,000 words per request
- Email support
Enterprise
Unlimited requests
- Everything in Developer
- Higher rate limits
- Priority support
Frequently Asked Questions
How do I get an API key?
Sign up for a free account at aidetectors.io and navigate to your Account dashboard. Your API key is generated instantly and you can start making requests immediately. The free tier includes 100 requests per month.
What AI models can the API detect?
The API detects content from all major AI models including ChatGPT (GPT-3.5, GPT-4, GPT-4o), Claude, Google Gemini, Meta LLaMA and Mistral — the five model families in our April 2026 benchmark — as well as other popular language models.
What languages does the API support?
The API is built and benchmarked for English text. It will return a score for other languages, but we do not publish accuracy figures for them, so treat non-English results as lower-confidence.
What is the rate limit?
Rate limits depend on your plan: Free tier allows 10 requests per minute, Developer allows 60 requests per minute, and Enterprise plans have custom rate limits. All plans include burst allowances for occasional spikes.
Do you store the text I send to the API?
Text submitted via the API is processed to produce the response and is not used to train our models. See our privacy policy for retention details.
Can I use the API for commercial products?
Yes. All paid plans include commercial usage rights. You can integrate AI detection into your SaaS product, CMS, hiring platform, or any other application.
Explore more AI detection tools
Start building with AI detection today
Get your free API key and make your first detection request in under 5 minutes.