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Age by Voice API

Estimate a speaker's age from an uploaded audio file.

Base URL​

https://api.genderrecognition.com

Endpoint​

POST /v1/voice-age/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-age/api" \
  -H "apiKey: YOUR_API_KEY" \
  -F "file=@audio.wav"

Response​

{
  "success": true,
  "estimated_age_years": 32,
  "confidence": 91,
  "probabilities": {
    "male": 86,
    "female": 9,
    "child": 5
  },
  "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. Allowed formats: WAV, MP3, FLAC, MP4, OGG, AIFF"
}

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."
  }
}

Processing failed​

{
  "error": "Voice age detection failed"
}

Notes​

  • The backend accepts common audio formats such as WAV, MP3, FLAC, MP4, OGG, and AIFF.
  • Audio uploads use the file field and must be 10 MB or smaller.