Free API

AI Detection API

Integrate AI text detection directly into your applications, platforms, or workflows. A simple REST API with structured JSON responses, sentence-level analysis, and no cost barriers.

What You Get

Our free API includes everything you need for production-grade AI detection.

1,000 Requests/Day

Generous daily limit for free API access. Enough for most development, testing, and moderate production workloads.

Sentence-Level Analysis

Every response includes per-sentence detection scores, not just document-level verdicts. Build UIs that highlight specific flagged sections.

Confidence Scores

Each result includes a (0.0-1.0) suspicion score and a clear verdict: likely_ai, possibly_ai, uncertain, or likely_human.

10,000 Chars/Request

Analyze texts up to 10,000 characters per request. Sufficient for articles, essays, reviews, and most content types.

Privacy First

Submitted text is processed for analysis only. Not stored permanently, not used for training. Scan history can be deleted anytime.

Low False Positives

Detection thresholds tuned to minimize false positives. Every result includes confidence scores so you can set your own thresholds.

Get Started in Minutes

From zero to AI detection in three simple steps.

1

Request API Access

Email hello@aidetector.review with your name, use case, and expected volume. We typically respond within 24–48 hours with your free API key.

2

Make Your First Request

Send a POST request to /api/v1/public/scans with the text you want to analyze. No complex setup — just a single HTTP call.

3

Parse Structured Results

The API returns JSON with a top-level verdict, confidence score, and an array of per-sentence results. Integrate into any language or framework.

Simple API, Structured Results

A clean REST API that returns machine-readable results you can integrate into any workflow.

Request

POST /api/v1/public/scans
Content-Type: application/json

{
  "text": "Your text to analyze..."
}

Response

{
  "suspicion_score": 0.755,
  "verdict": "likely_ai",
  "sentences": [
    {
      "text": "...",
      "verdict": "likely_ai",
      "score": 0.92
    }
  ]
}

Use Cases

Our API is built for developers integrating AI detection into any product or workflow.

Educational Platforms

Integrate into learning management systems to help educators identify AI-assisted submissions automatically.

Content Management

Automatically screen user-generated content for AI-written text before publishing.

Browser Extensions

Build tools that analyze text on any webpage using our lightweight API.

Content Moderation

Add AI detection to your moderation pipeline. Flag and route AI-generated content for human review.

Frequently Asked Questions

Start Integrating AI Detection

Get your free API key and start detecting AI-generated content in minutes. No credit card required.

Completely free. No credit card required.