NEWFree tier — 1,000 requests/month, no credit card

AI Detector API

Detect AI-generated text with high accuracy using a simple REST API. Sentence-level confidence scoring, sub-second response times, and SDKs for every major language. Start free — no credit card required.

detect.py
import requests

response = requests.post(
    "https://aidetectorapi.com/v1/detect",
    headers={"Authorization": "Bearer your_api_key"},
    json={"text": "Paste any text to analyze..."}
)

result = response.json()
print(f"AI Probability: {result['score']}")
# → AI Probability: 0.94
# → Sentences analyzed: 12
# → Confidence: high

Why Developers Choose This AI Detector API

Everything you need to detect AI-generated content accurately and at scale. Built for developers who demand reliability.

99%+ Detection Accuracy

Trained on millions of samples from GPT-4, Claude, Gemini, Llama, and every major LLM. Independently validated with sub-2% false positive rate.

Sub-Second Response Time

Average API response in under 400ms for a 700-word document. Built for real-time applications where latency matters.

Sentence-Level Scoring

Get granular confidence scores for every sentence, not just a single document score. See exactly which parts of the text were likely AI-generated.

Batch Processing

Analyze hundreds of documents in a single API call. Async processing with webhook delivery for high-volume workloads.

20+ Languages

Detect AI content in English, Spanish, French, German, Portuguese, Chinese, Japanese, and more. Same high accuracy across all supported languages.

Simple REST API

Standard REST endpoints with JSON responses. Official SDKs for Python, JavaScript/TypeScript, and cURL examples. Integrate in under 5 minutes.

How the AI Detector API Works

1

Send Your Text

Make a POST request to /v1/detect with the text you want to analyze. Plain text or HTML — we handle both.

2

Get Instant Results

Receive a JSON response with an overall AI probability score (0–1), sentence-level breakdowns, and a confidence rating.

3

Act on the Data

Use the structured response in your application — flag content, trigger reviews, or surface results to your users.

Trusted by Developers Building

Education Platforms
Publishing Tools
Content Moderation
Compliance Systems
Hiring Platforms
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1,000+ developers · 10M+ API calls processed · 99.7% uptime

AI Detector API Pricing

Start free. Scale as you grow. Pay only for what you use.

Free

$0/month
  • 1,000 requests/month
  • Sentence-level scoring
  • REST API + SDKs
  • Community support
Start Free
POPULAR

Pro

$49/month
  • 50,000 requests/month
  • Batch processing
  • Webhook delivery
  • Priority support
  • 99.9% SLA
Get Pro

Enterprise

Custom
  • Unlimited requests
  • Dedicated infrastructure
  • Custom model tuning
  • On-premise available
  • Dedicated account manager
Contact Sales

All plans include 20+ languages, full API access, and official SDKs. View full pricing comparison →

Frequently Asked Questions

Common questions about AI content detection and our API.