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POST
/
v3
AI Detection
curl --request POST \
  --url https://text.api.pangram.com/v3 \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "text": "<string>"
}
'
{
  "text": "<string>",
  "version": "<string>",
  "headline": "<string>",
  "prediction": "<string>",
  "prediction_short": "<string>",
  "fraction_ai": 123,
  "fraction_ai_assisted": 123,
  "fraction_human": 123,
  "num_ai_segments": 123,
  "num_ai_assisted_segments": 123,
  "num_human_segments": 123,
  "dashboard_link": "<string>",
  "windows": [
    {
      "text": "<string>",
      "label": "<string>",
      "ai_assistance_score": 123,
      "confidence": "<string>",
      "start_index": 123,
      "end_index": 123,
      "word_count": 123,
      "token_length": 123
    }
  ]
}

Documentation Index

Fetch the complete documentation index at: https://docs.pangram.com/llms.txt

Use this file to discover all available pages before exploring further.

Current
​
V3 API
Current version
The V3 endpoint replaces all previous detection endpoints with improved AI-assistance detection and segment-level analysis.

​
POST /v3

Classify text as AI-generated, AI-assisted, or human-written with segment-level analysis. 
POST https://text.api.pangram.com/v3

​
Request

​
text
string
required
The input text to analyze.
​
public_dashboard_link
boolean
default:"false"
Whether to include a public dashboard link in the response.

​
Response

​
text
string
The input text that was analyzed.
​
version
string
The API version identifier (e.g., "3.0").
​
headline
string
Classification headline summarizing the result.
​
prediction
string
Long-form prediction string describing the classification.
​
prediction_short
string
Short-form prediction string (e.g., "AI", "AI-Assisted", "Human", "Mixed").
​
fraction_ai
float
Fraction of text classified as AI-written (0.0–1.0).
​
fraction_ai_assisted
float
Fraction of text classified as AI-assisted (0.0–1.0).
​
fraction_human
float
Fraction of text classified as human-written (0.0–1.0).
​
num_ai_segments
integer
Number of text segments classified as AI.
​
num_ai_assisted_segments
integer
Number of text segments classified as AI-assisted.
​
num_human_segments
integer
Number of text segments classified as human.
​
dashboard_link
string
A link to the dashboard page containing the full classification result. Only present when public_dashboard_link is true.
​
windows
array
List of text segments () analyzed individually.

​
Example

curl -X POST https://text.api.pangram.com/v3 \
  -H "Content-Type: application/json" \
  -H "x-api-key: your_api_key_here" \
  -d '{
    "text": "The text to analyze with V3 classification"
  }'
Example Response 
{
  "text": "The text to analyze with V3 classification",
  "version": "3.0",
  "headline": "AI Detected",
  "prediction": "We are confident that this document is a mix of AI-generated, AI-assisted, and human-written content",
  "prediction_short": "Mixed",
  "fraction_ai": 0.70,
  "fraction_ai_assisted": 0.20,
  "fraction_human": 0.10,
  "num_ai_segments": 7,
  "num_ai_assisted_segments": 2,
  "num_human_segments": 1,
  "windows": [
    {
      "text": "The text to analyze",
      "label": "AI-Generated",
      "ai_assistance_score": 0.85,
      "confidence": "High",
      "start_index": 0,
      "end_index": 19,
      "word_count": 4,
      "token_length": 5
    },
    {
      "text": "with V3 classification",
      "label": "Moderately AI-Assisted",
      "ai_assistance_score": 0.45,
      "confidence": "Medium",
      "start_index": 20,
      "end_index": 49,
      "word_count": 4,
      "token_length": 5
    }
  ]
}