Face DetectorFace Detector API

OnlineCredit Usage:5 per callRefreshed 1 month ago
avg: 1487ms|p50: 1353ms|p75: 1576ms|p90: 1844ms|p99: 2379ms

Overview

To use Face Detector, you need an API key. You can get one by creating a free account and visiting your dashboard.

POST Endpoint

URL
https://api.apiverve.com/v1/facedetect

Example

How to call the Face Detector API in different programming languages.

cURL Request
curl -X POST \
  "https://api.apiverve.com/v1/facedetect" \
  -H "X-API-Key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "url": "https://example.com/group-photo.jpg",
  "confidence": 0.5
}'
JavaScript (Fetch API)
const response = await fetch('https://api.apiverve.com/v1/facedetect', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "url": "https://example.com/group-photo.jpg",
    "confidence": 0.5
})
});

const data = await response.json();
console.log(data);
Python (Requests)
import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

payload = {
    "url": "https://example.com/group-photo.jpg",
    "confidence": 0.5
}

response = requests.post('https://api.apiverve.com/v1/facedetect', headers=headers, json=payload)

data = response.json()
print(data)
Go (net/http)
package main

import (
    "fmt"
    "io"
    "net/http"
    "bytes"
    "encoding/json"
)

func main() {
    payload := map[string]interface{}{
        "url": "https://example.com/group-photo.jpg",
        "confidence": "0.5"
    }

    jsonPayload, _ := json.Marshal(payload)
    req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/facedetect", bytes.NewBuffer(jsonPayload))

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}
Example Response
{
  "status": "ok",
  "error": null,
  "data": {
    "faces": [
      {
        "x": 142,
        "y": 85,
        "width": 98,
        "height": 112,
        "confidence": 0.9847
      },
      {
        "x": 312,
        "y": 92,
        "width": 87,
        "height": 103,
        "confidence": 0.9623
      },
      {
        "x": 478,
        "y": 78,
        "width": 95,
        "height": 118,
        "confidence": 0.9412
      }
    ],
    "faceCount": 3,
    "hasFaces": true,
    "imageWidth": 640,
    "imageHeight": 480,
    "averageConfidence": 0.9627,
    "imageCoverage": 10.23
  },
  "code": 200
}

Authentication

The Face Detector API requires authentication via API key. Include your API key in the request header:

Required Header
X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Face Detector API directly in your browser with live requests and responses.

Parameters

The Face Detector API supports multiple query options. Use one of the following:

Option 1: Detect Faces from Upload

ParameterTypeRequiredDescriptionDefaultExample
imagestringrequired
Image file upload (JPG, PNG, GIF, WebP supported, max 10MB)
--
confidencenumberoptional
Minimum confidence threshold for face detection (0.1 to 1.0)
Range: 0.1 - 1
0.50.5

Option 2: Detect Faces from URL

ParameterTypeRequiredDescriptionDefaultExample
urlstringrequired
URL of the image to analyze (JPG, PNG, GIF, WebP supported)
-https://example.com/group-photo.jpg
confidencenumberoptional
Minimum confidence threshold for face detection (0.1 to 1.0)
Range: 0.1 - 1
0.50.5

Response

The Face Detector API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

XML Response
200 OK
<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <faces>
      <face>
        <x>142</x>
        <y>85</y>
        <width>98</width>
        <height>112</height>
        <confidence>0.9847</confidence>
      </face>
      <face>
        <x>312</x>
        <y>92</y>
        <width>87</width>
        <height>103</height>
        <confidence>0.9623</confidence>
      </face>
      <face>
        <x>478</x>
        <y>78</y>
        <width>95</width>
        <height>118</height>
        <confidence>0.9412</confidence>
      </face>
    </faces>
    <faceCount>3</faceCount>
    <hasFaces>true</hasFaces>
    <imageWidth>640</imageWidth>
    <imageHeight>480</imageHeight>
    <averageConfidence>0.9627</averageConfidence>
    <imageCoverage>10.23</imageCoverage>
  </data>
  <code>200</code>
</response>
YAML Response
200 OK
status: ok
error: null
data:
  faces:
    - x: 142
      'y': 85
      width: 98
      height: 112
      confidence: 0.9847
    - x: 312
      'y': 92
      width: 87
      height: 103
      confidence: 0.9623
    - x: 478
      'y': 78
      width: 95
      height: 118
      confidence: 0.9412
  faceCount: 3
  hasFaces: true
  imageWidth: 640
  imageHeight: 480
  averageConfidence: 0.9627
  imageCoverage: 10.23
code: 200
CSV Response
200 OK
keyvalue
faces[{x:142,y:85,width:98,height:112,confidence:0.9847},{x:312,y:92,width:87,height:103,confidence:0.9623},{x:478,y:78,width:95,height:118,confidence:0.9412}]
faceCount3
hasFacestrue
imageWidth640
imageHeight480
averageConfidence0.9627
imageCoverage10.23

Response Structure

All API responses follow a consistent structure with the following fields:

FieldTypeDescriptionExample
statusstringIndicates whether the request was successful ("ok") or failed ("error")ok
errorstring | nullContains error message if status is "error", otherwise nullnull
dataobject | nullContains the API response data if successful, otherwise null{...}

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Response fields marked with Premium are available exclusively on paid plans.View pricing
FieldTypeSample ValueDescription
[ ] Array items:array[3]Array of objects
Array of detected faces with bounding boxes and confidence scores
â”” xnumber142
X coordinate of face bounding box top-left corner
â”” ynumber85
Y coordinate of face bounding box top-left corner
â”” widthnumber98
Width of face bounding box in pixels
â”” heightnumber112
Height of face bounding box in pixels
â”” confidencenumber0.9847
Confidence score for face detection (0.0 to 1.0)
faceCountPremiumnumber3
Total number of faces detected in the image
hasFacesbooleantrue
Whether any faces were detected in the image
imageWidthPremiumnumber640
Width of the analyzed image in pixels
imageHeightPremiumnumber480
Height of the analyzed image in pixels
averageConfidencePremiumnumber0.9627
Average confidence score across all detected faces
imageCoveragePremiumnumber10.23
Percentage of image area covered by detected faces

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access Face Detector through GraphQL to combine it with other API calls in a single request. Query only the face detector data you need with precise field selection, and orchestrate complex data fetching workflows.

Test Face Detector in the GraphQL Explorer to confirm availability and experiment with queries.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

GraphQL Endpoint
POST https://api.apiverve.com/v1/graphql
GraphQL Query Example
query {
  facedetect(
    input: {
      url: "https://example.com/group-photo.jpg"
      confidence: 0.5
    }
  ) {
    faces
    faceCount
    hasFaces
    imageWidth
    imageHeight
    averageConfidence
    imageCoverage
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The Face Detector API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

Face Detector requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The Face Detector API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for Face Detector

Official Face Detector packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

No-Code Integrations

Face Detector works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Frequently Asked Questions

How do I get an API key for Face Detector?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Face Detector and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
How many credits does Face Detector cost?

Each successful Face Detector API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful face detector lookups.

Can I use Face Detector in production?

The free plan is for testing and development only. For production use of Face Detector, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.

Can I use Face Detector from a browser?
Yes! The Face Detector API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
What happens if I exceed my Face Detector credit limit?

When you reach your monthly credit limit, Face Detector API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.

What's Next?

Continue your journey with these recommended resources

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