ProseGuard is an AI content detection API that analyzes text to determine whether it was written by a human or generated by AI. It goes beyond simple probability scores — it shows you exactly why text looks AI-generated or human-written, down to the individual sentence level. Publishers, educators, content platforms, and hiring managers all need to verify content authenticity. ProseGuard gives…

1 subscribers
8.6/10 popularity
126 ms avg latency
59% success rate
11 endpoints
The in-depth APIMemo review for this API hasn't been published yet — the data below comes straight from the public marketplace listing.

ProseGuard endpoints

MethodEndpointDescription
POST AI Detection
/api/v1/detect
Full AI detection analysis. Returns AI probability (0-100), label (ai_generated, likely_ai, mixed_or_uncertain, likely_human, human_written), confidence score, and detailed…
POST Quick Detection
/api/v1/detect/quick
Lightweight AI detection — returns just the AI probability, label, and confidence. Use this for high-volume scanning where you don't need the full signal breakdown.
POST Sentence Detection
/api/v1/detect/sentences
Per-sentence AI detection. Flags each sentence individually as AI, human, or uncertain with specific flags showing what triggered the detection. Great for finding AI-written…
POST Batch Detection
/api/v1/detect/batch
Analyze up to 20 texts at once. Returns AI probability and label for each. Perfect for scanning submissions, reviews, or content queues in bulk.
POST Writing Patterns
/api/v1/analyze/patterns
Analyze sentence-level writing patterns. Returns sentence length uniformity (AI writes more uniform sentences), starter diversity, AI-typical starter percentage, and paragraph…
POST Vocabulary Analysis
/api/v1/analyze/vocabulary
Analyze vocabulary complexity and patterns. Returns type-token ratio, word length averages, complex word percentage, hapax legomena ratio (words used only once — AI uses fewer),…
POST Style Fingerprint
/api/v1/analyze/style
Generate a writing style fingerprint. Returns punctuation usage patterns, contraction rate, first/second person usage, sentence type distribution, formality score (0-100), and…
POST Repetition Analysis
/api/v1/analyze/repetition
Analyze repetitive patterns typical of AI writing. Returns top repeated words with density, repeated phrases, sentence similarity rate, consecutive starter repeats, and a…
POST Compare Texts
/api/v1/compare
Compare two texts for authorship similarity and AI probability. Returns vocabulary overlap, sentence length comparison, formality comparison, AI probability for both, and whether…
POST Humanize Score
/api/v1/humanize-score
Score how natural and human-like text sounds on a scale of 0-100 with a letter grade (A-F). Returns specific factors that make it sound human or AI, plus actionable tips to make…
POST Full Report
/api/v1/report
Generate a comprehensive AI detection report. Runs every analysis module and returns AI probability, all detection signals, AI and human markers found, sentence patterns,…

ProseGuard pricing

PlanPriceRate limitQuotas
BASIC Free
  • Requests: 50 / monthly
PRO Recommended $19.99 / month 10 / second
  • Requests: 5,000 / monthly
ULTRA $59.99 / month 25 / second
  • Requests: 30,000 / monthly
MEGA $179.99 / month 60 / second
  • Requests: 150,000 / monthly

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