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Gender by Voice API

Detect likely speaker gender from uploaded audio or from an audio URL.

Base URL​

https://api.genderrecognition.com

File endpoint​

POST /v1/voice-gender-recognition/api

Headers​

apiKey: YOUR_API_KEY
Content-Type: multipart/form-data

Body​

FieldTypeRequiredDescription
filefileYesAudio file to analyze.

Example​

curl -X POST "https://api.genderrecognition.com/v1/voice-gender-recognition/api" \
  -H "apiKey: YOUR_API_KEY" \
  -F "file=@audio.wav"

URL endpoint​

POST /v1/voice-gender-recognition/api/url

Headers​

apiKey: YOUR_API_KEY
Content-Type: application/json

Body​

{
  "url": "https://example.com/audio.wav"
}

Response​

File requests return the prediction, confidence as a percentage, and updated quota metadata.

{
  "success": true,
  "gender": "male",
  "confidence": 97,
  "remainingRequests": 2999
}

URL requests return the prediction and quota metadata. Slow first requests may also include an info message.

{
  "success": true,
  "gender": "male",
  "remainingRequests": 2999
}

Error cases​

Missing API key​

{
  "error": "API key is required"
}

Invalid API key​

{
  "error": "Invalid API key"
}

Missing file​

{
  "error": "No file uploaded"
}

Invalid file type​

{
  "error": "Invalid file type. Only audio formats are allowed"
}

Invalid URL request​

{
  "error": "A valid http or https URL is required"
}

Missing JSON content type​

{
  "error": "Content-Type header is required. Please set Content-Type: application/json"
}

Unsupported JSON content type​

{
  "error": "Content-Type must be application/json"
}

Quota exceeded​

{
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "You have exceeded your free tier limit of 50 requests.",
    "detailedMessage": "Insufficient remaining requests. Required: 1, Available: 0",
    "details": {
      "limit": 50,
      "used": 50,
      "reset_date": "2026-07-01T00:00:00.000Z"
    },
    "suggested_action": "Please upgrade to a premium plan to continue using the API."
  }
}

Notes​

  • File requests use multipart form data.
  • URL requests use JSON.
  • Audio uploads use the file field and must be 10 MB or smaller.