Production-ready Face Recognition API
Detect, recognize, and verify faces with a simple REST API. Age & gender estimation, expression/emotion detection, passive and active liveness — all included. Start free with 100 API calls per month.
No credit card required. 100 free API calls/month.
One HTTP request is all it takes to recognize a face. Works with any language that supports REST APIs.
curl -X POST "https://faceapi.arsa.technology/api/v1/face_recognition/recognize_face" \ -H "x-key-secret: YOUR_API_KEY" \ -F "face_image=@photo.jpg"
import requests
response = requests.post(
"https://faceapi.arsa.technology/api/v1/face_recognition/recognize_face",
headers={"x-key-secret": "YOUR_API_KEY"},
files={"face_image": open("photo.jpg", "rb")}
)
print(response.json())const formData = new FormData();
formData.append("face_image", fileInput.files[0]);
const response = await fetch(
"https://faceapi.arsa.technology/api/v1/face_recognition/recognize_face",
{ method: "POST", headers: { "x-key-secret": "YOUR_API_KEY" }, body: formData }
);
const data = await response.json();{
"status": "success",
"faces": [
{
"recognition_uidresult": "john_doe",
"recognition_confidence": 0.94,
"bbox": {
"x1": 0.12,
"y1": 0.08,
"x2": 0.45,
"y2": 0.52
},
"passive_liveness": {
"is_real_face": true,
"liveness_probability": 0.97
},
"age": 28.5,
"gender": "male",
"gender_probability": 0.96,
"expression": "happy",
"expression_probability": 0.89
}
],
"latency_ms": 245.32
}Everything you need to build face-powered applications — from identity verification and access control to attendance systems and KYC compliance.
Detect multiple faces in a single image and match them against your registered database. Returns bounding boxes, confidence scores, recognition results, plus age, gender, and expression estimation for each detected face.
POST /face_recognition/recognize_faceEstimate age, classify gender, and detect facial expressions (happy, sad, surprise, anger, neutral) for each face — all with confidence scores. Ideal for demographics, audience analytics, sentiment analysis, and age verification.
POST /face_analyticsCompare two face images to determine if they belong to the same person. Ideal for identity document verification, KYC workflows, and access control. Returns match result, similarity score, age, gender, expression, and liveness for both faces.
POST /face_recognition/validate_facesDetect presentation attacks from a single image. Identifies spoofs from printed photos, screen replays, and masks using advanced anti-spoofing AI. Returns real/spoof classification with confidence score.
POST /face_livenessChallenge-response liveness verification via video. Generates random head movement instructions (look up, down, left, right) and validates the user performed them sequentially. Combines movement detection with passive anti-spoof analysis.
POST /face_liveness_active/request + /submitRegister up to 500,000 face IDs per account with multiple images per face for better accuracy. Each user gets an isolated database. Supports register, delete, view, and full reset operations via API.
POST /face_recognition/register_faceMonitor your API usage in real-time with the developer dashboard. Manage your API key, view billing history, track request counts, and manage your face database. All accessible via a modern web interface.
Dashboard at /dashboardPowering identity verification, security, and automation across industries.
Verify customer identities by comparing selfies to ID documents. Combine with liveness detection to prevent fraud.
Build facial recognition-based access control for buildings, events, and restricted areas.
Automate employee attendance with face recognition. No badges or PINs needed.
Detect duplicate accounts, prevent identity theft, and flag suspicious login attempts with face matching.
Measure customer satisfaction and engagement through real-time facial expression detection. Analyze emotions at events, retail spaces, or video calls.
Start free with 100 API calls per month. Upgrade as your application grows. All plans include every feature.
Guides, tutorials, and insights on face recognition technology
Understand the key differences between these three biometric technologies.
Step-by-step guide to building an automated attendance system using our API.
How the API detects 5 emotions — neutral, happy, sad, surprise, anger — with code examples.
Create your free account and make your first API call in under 5 minutes. No credit card required.