Eliminate fake users.
Before they reach yours.
nepper.io scores any profile image for authenticity and flags AI-generated fakes, deepfakes, stolen influencer photos, and known scam profiles, in one API call.
No signup to test. Full detection stack included on Free.
Detects
How it works
One request. Every signal.
nepper combines independent detectors into a single, explainable score, so you can act on it with confidence.
Submit images
Send one or many images as URLs, base64, or file uploads to a single endpoint.
Multi-signal analysis
Metadata & EXIF, AI-generation detection, reverse image search, and a scam perceptual-hash database run in parallel.
Authenticity Report
Get a 0-100 fake score, a verdict, and weighted labels with a transparent per-detector breakdown.
Live demo
See a real Authenticity Report
Upload a profile picture or paste an image URL and get a live report from the production API.
Upload or link images
Up to 3 images, 10MB each. We never store them.
Your report will appear here.
This demo runs the full stack - AI-generation and reverse-image-search detection included - and is rate limited. For batching and higher limits, grab a key in your dashboard.
For developers
Built to drop into your signup flow
A single POST. JSON or multipart. Batch up to 10 images per request.
curl -X POST https://nepper.io/api/v1/analyze \
-H "content-type: application/json" \
-d '{"images":["https://example.com/profile.jpg"]}'{
"reports": [
{
"source": "https://example.com/profile.jpg",
"fakeScore": 87,
"verdict": "likely_fake",
"labels": [
{ "label": "ai_generated", "confidence": 0.94 },
{ "label": "reused_image", "confidence": 0.8 }
]
}
],
"summary": { "count": 1, "flagged": 1, "errored": 0 }
}Building with AI?
Copy this prompt into Cursor, Claude, or ChatGPT to wire nepper into your app.
Pricing
Free for now — Pro coming soon
Free
$0
Available now · full detection stack
Pro
$25
Coming soon · higher volume & batching
Enterprise
Custom
Self-host & SLA
Start detecting fakes today
Protect your community from AI fakes and scammers with a single API call.