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CSV Name Intelligence API

Validate a CSV file before processing it, then enrich each row with gender, age, ethnicity, and language predictions.

Base URL​

https://api.genderrecognition.com

CSV format​

CSV files must include first and last name columns. The backend accepts either camelCase or snake_case column names.

firstName,lastName
Alex,Morgan
Jamie,Patel

Uploads use the file field and must be 10 MB or smaller.

Validate endpoint​

POST /v1/voice-gender-recognition/api/csv/validate

Headers​

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

Body​

FieldTypeRequiredDescription
filefileYesCSV file to validate.

Example​

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

Response​

{
  "success": true,
  "message": "CSV file validated successfully",
  "csvInfo": {
    "rowCount": 2,
    "headers": ["firstName", "lastName"],
    "sampleData": [
      {
        "firstName": "Alex",
        "lastName": "Morgan"
      }
    ]
  },
  "userInfo": {
    "remainingRequests": 2999,
    "canProcess": true
  }
}

Process endpoint​

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

Headers​

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

Body​

FieldTypeRequiredDescription
filefileYesCSV file to process.
responseFormatstringNoUse csv to receive a CSV file. Defaults to JSON output.

JSON response example​

curl -X POST "https://api.genderrecognition.com/v1/voice-gender-recognition/api/csv" \
  -H "apiKey: YOUR_API_KEY" \
  -F "file=@names.csv"
{
  "success": true,
  "message": "Successfully processed 2 rows",
  "data": [
    {
      "firstName": "Alex",
      "lastName": "Morgan",
      "gender": "male",
      "genderProbability": 0.86,
      "age": "25-34",
      "ageProbability": 0.78,
      "ethnicity": "English",
      "ethnicityProbability": 0.74,
      "language": "English",
      "languageProbability": 0.8
    }
  ],
  "summary": {
    "totalRows": 2,
    "processedRows": 2,
    "remainingRequests": 2997
  }
}

CSV response example​

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

When responseFormat is csv, the API returns text/csv with a downloadable processed file. Other values return the normal JSON response.

Error cases​

Missing API key​

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

Invalid API key​

{
  "error": "Invalid API key"
}

Missing file​

{
  "error": "No CSV file uploaded"
}

Invalid file type​

{
  "error": "Invalid file type. Only .csv format is allowed."
}

Invalid CSV columns​

{
  "error": "Invalid CSV format. The file must contain columns named 'firstName' or 'first_name' and 'lastName' or 'last_name'. Found columns: name"
}

Quota exceeded​

{
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "You have exceeded your free tier limit of 50 requests.",
    "detailedMessage": "Insufficient remaining requests. Required: 2, 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": "Internal server error"
}