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About AI Detector API
AI Detector API is a developer-focused API for detecting AI-generated text. It helps identify content produced by LLMs like GPT-4, Claude, and Gemini, solving the problem of AI content slip-through in workflows such as publishing, academic integrity, and content moderation.
Who is it for?
Built for developers and SaaS teams who need to embed AI detection into their own products. Ideal for LMS platforms, content management systems, recruiting tools, and SEO agencies. Not for end-users looking for a one-off text checker—the API is meant for integration.
Key capabilities
Offers 99%+ detection accuracy with a sub-2% false positive rate, sub-second response times, sentence-level confidence scores, batch processing, and multi-language support (20+ languages). Includes REST API, Python and JavaScript SDKs.
Real-world use cases
Use it to flag AI submissions in academic tools, review articles before publication, filter AI-written resumes, and automate content moderation pipelines.
Key features
- 99%+ accuracy — Trained on millions of samples from major LLMs.
- Sentence-level scoring — Get granular confidence per sentence.
- Sub-second response — Average API response under 400ms for 700-word docs.
- Batch processing — Analyze hundreds of documents with webhook delivery.
- 20+ languages — Supports major languages with consistent accuracy.
- Simple REST API — Official SDKs for Python and JavaScript.
SaaSpartout Score
7.4
/10
Editorial score from our review methodology — not user ratings.
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AI Detector API Pricing
AI Detector API pricing: from $49/mo.
For comparison: the median starting price in AI Other is $19/month, measured across 206 tools we track. See the full SaaS Pricing Index →
Free
$0/month — 1,000 requests, sentence-level scoring, REST API + SDKs, 20+ languages, community support.
Pro
$49/month — 50,000 requests, batch processing, webhook delivery, priority email support, 99.9% uptime SLA.
Enterprise
Custom pricing — Volume-based, unlimited requests, on-premise deployment, custom model tuning, dedicated manager, 99.99% uptime SLA.
All plans include a free trial with 1,000 requests, no credit card required.
Frequently asked questions
Is AI Detector API free?
Yes, there is a free tier offering 1,000 requests per month with no credit card required.
How much does AI Detector API cost?
Pricing starts at $49/month for the Pro plan, which includes 50,000 requests. Enterprise custom pricing is available.
Who is AI Detector API best for?
It's best for developers and teams needing to integrate AI detection into their own products, such as LMS platforms, publishing tools, and recruiting software.
What are the top alternatives to AI Detector API?
Alternatives include GPTZero, Originality.ai, and Sapling's AI detector, but AI Detector API stands out for sub-second response and sentence-level scoring.
What is the key limitation of AI Detector API?
The free tier only includes 1,000 requests, and the API is primarily for developers, not end-users seeking a simple text checker.
