Developer Resources

Detection API

One POST request, one JSON response. Add AI detection scoring to a CMS, an LMS or your own application without shipping a model.

Endpoints

/detect.php POST

POST /api/detect.php

Scores text for machine-generated writing patterns from current general-purpose models — ChatGPT and GPT-4o/GPT-5, Claude, Gemini, Llama. Returns a probability and a label.

Request Body (JSON)

Input application/json

{
  "text": "The quick brown fox jumps over the lazy dog."
}

* Min 10 chars, Max 50,000 chars.

Response (JSON)

Output 200 OK

{
  "score": 12.5,              // AI probability, 0-100
  "ai_probability": 0.125,    // same value, 0-1
  "human_probability": 0.875, // 1 - ai_probability
  "label": "Human",           // "AI" when score > 50, otherwise "Human"
  "original_response": { }    // unmodified upstream payload
}