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x402 AI Tools – Face Detection & Analysis
x402
x402 AI Tools – Face Detection & Analysis is a paid API for AI agents from ai.kagurazaka.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).
Detects up to 100 faces in a JPEG or PNG image URL using Amazon Rekognition, returning position, age range, emotions, facial attributes, pose, and image quality for each face — without identifying anyone.
Price / call$0.003
Success—
StatusUnknown
How this service works
Finds up to 100 faces in a JPEG or PNG at a URL with Amazon Rekognition and describes each: position, estimated age range, emotions, smile, glasses, beard, eyes and mouth open, pose and image quality. It does not identify anyone or compare faces.
Output
Returns an array of face objects (up to 100), each containing: bounding box coordinates, estimated age range (min/max), emotion labels with confidence scores (HAPPY, SAD, ANGRY, CONFUSED, DISGUSTED, SURPRISED, CALM, FEAR), boolean/confidence attributes for smile, glasses, sunglasses, beard, mustache, eyes open, and mouth open, 3D head pose (roll, yaw, pitch), and an image quality score (brightness, sharpness). No identity or name data is returned.
Example use cases
Emotion analysis for UX research
“I have a photo from our user testing session at https://example.com/session-photo.jpg — can you detect all the faces and tell me what emotions are showing, whether people look engaged or frustrated?”
Age range estimation for audience research
“Here's an image from our event: https://example.com/event-crowd.jpg — can you find all the faces and give me estimated age ranges for each person so I understand our audience demographics?”
Content moderation pre-screening
“Before I publish this user-submitted profile photo at https://example.com/profile.jpg, can you check if there's actually a face in it and whether the image quality is good enough?”
Technical details
Endpoint
POSThttps://ai.kagurazaka.dev/v1/faces?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need non-identifying facial attribute analysis — emotions, approximate age, smile, glasses, beard, pose — from a photo accessible via a public HTTPS URL. It is specifically powered by Amazon Rekognition's DetectFaces API and handles up to 100 faces per image. Prefer this over generic vision models when you need structured, per-face attribute data with confidence scores rather than a freeform description.
Side effects
- Image URL not reachable or returns non-200 — endpoint cannot fetch the image
- Image exceeds 5 MB size limit — request rejected
- Non-JPEG/PNG format (e.g. GIF, WebP, AVIF) — format not supported
- No faces detected in image — returns empty face list
- Image too low resolution or blurry for Rekognition to detect faces — returns empty or partial results
- HTTP URL used instead of HTTPS — schema requires HTTPS URL
- Payment not included or insufficient — x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | https URL of a JPEG or PNG image (up to 5 MB) |
Tags
x402
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