GitHub

Official R Client for GenderAPI.io — determine gender from names, emails, and usernames using AI, including bulk operations for high-volume analysis.

✅ Get a Free API Key:
https://app.genderapi.io

🚀 Installation

The package is now available on CRAN. Install it with:

install.packages("genderapi")

Then load the package:

library(genderapi)

⚠️ Required Packages

Make sure you have these installed:

install.packages(c("httr", "jsonlite"))

Example

library(genderapi)
api_key <- "YOUR_API_KEY"
result <- get_gender_by_name(
  api_key = api_key,
  name = "Michael"
)
print(result)

🔗 Load the Library

library(genderapi)

📝 Usage

🔹 Get Gender by Name

api_key <- "YOUR_API_KEY"
result <- get_gender_by_name(
  api_key = api_key,
  name = "Michael"
)
print(result)

With Additional Options

result <- get_gender_by_name(
  api_key = api_key,
  name = "李雷",
  country = "CN",
  askToAI = TRUE,
  forceToGenderize = TRUE
)
print(result)

🔹 Get Gender by Email

result <- get_gender_by_email(
  api_key = api_key,
  email = "michael.smith@example.com"
)
print(result)

With askToAI

result <- get_gender_by_email(
  api_key = api_key,
  email = "michael.smith@example.com",
  askToAI = TRUE
)
print(result)

🔹 Get Gender by Username

result <- get_gender_by_username(
  api_key = api_key,
  username = "michael_dev"
)
print(result)

With Additional Options

result <- get_gender_by_username(
  api_key = api_key,
  username = "michael_dev",
  country = "US",
  askToAI = TRUE,
  forceToGenderize = TRUE
)
print(result)

🔹 Get Gender by Name (Bulk)

Lookup up to 100 names in a single request.

data <- list(
  list(name = "Andrea", country = "DE", id = "123"),
  list(name = "andrea", country = "IT", id = "456"),
  list(name = "james", country = "US", id = "789")
)
result <- get_gender_by_name_bulk(
  api_key = api_key,
  data = data
)
print(result)

🔹 Get Gender by Email (Bulk)

Lookup up to 50 emails in a single request.

data <- list(
  list(email = "john@example.com", country = "US", id = "abc123"),
  list(email = "maria@domain.de", country = "DE", id = "def456")
)
result <- get_gender_by_email_bulk(
  api_key = api_key,
  data = data
)
print(result)

🔹 Get Gender by Username (Bulk)

Lookup up to 50 usernames in a single request.

data <- list(
  list(username = "cooluser", country = "US", id = "u001"),
  list(username = "maria2025", country = "DE", id = "u002")
)
result <- get_gender_by_username_bulk(
  api_key = api_key,
  data = data
)
print(result)

📥 API Parameters

Below are the parameters accepted by each function.

Name Lookup

Parameter Type Required Description
name String Yes Name to query.
country String No Two-letter country code (e.g. "US").
askToAI Logical No Default FALSE. If TRUE, queries AI directly (costs 3 credits).
forceToGenderize Logical No Default FALSE. If TRUE, attempts to analyze nicknames, emojis, etc.

Name Lookup (Bulk)

Parameter Type Required Description
data List of named lists Yes Each item contains name (required), country (optional), and id (optional). Max 100 records.

Email Lookup

Parameter Type Required Description
email String Yes Email address to query.
country String No Two-letter country code.
askToAI Logical No Default FALSE.

Email Lookup (Bulk)

Parameter Type Required Description
data List of named lists Yes Each item contains email (required), country (optional), and id (optional). Max 50 records.

Username Lookup

Parameter Type Required Description
username String Yes Username to query.
country String No Two-letter country code.
askToAI Logical No Default FALSE.
forceToGenderize Logical No Default FALSE.

Username Lookup (Bulk)

Parameter Type Required Description
data List of named lists Yes Each item contains username (required), country (optional), and id (optional). Max 50 records.

✅ API Response

All functions return a list representing the JSON response.

Single lookup example:

list(
  status = TRUE,
  used_credits = 1,
  remaining_credits = 4999,
  expires = 1743659200,
  q = "michael.smith@example.com",
  name = "Michael",
  gender = "male",
  country = "US",
  total_names = 325,
  probability = 98,
  duration = "4ms"
)

Bulk lookup example:

list(
  status = TRUE,
  used_credits = 3,
  remaining_credits = 7265,
  expires = 1717069765,
  names = list(
    list(
      name = "andrea",
      q = "Andrea",
      gender = "female",
      country = "DE",
      total_names = 644,
      probability = 88,
      id = "123"
    ),
    list(
      name = "andrea",
      q = "andrea",
      gender = "male",
      country = "IT",
      total_names = 13537,
      probability = 98,
      id = "456"
    )
  ),
  duration = "5ms"
)

🔎 Response Fields

Field Type Description
status Logical TRUE or FALSE. Indicates success.
used_credits Integer Credits used for the request.
remaining_credits Integer Credits left.
expires Integer Unix timestamp of account expiry.
q String Original query input.
name String Found name.
gender String "male", "female", or "null".
country String Predicted country code.
total_names Integer Number of records used in prediction.
probability Integer Confidence (50–100).
duration String Processing time.

⚠️ Error Handling

If an error occurs, the API returns:

list(
  status = FALSE,
  errno = 94,
  errmsg = "invalid or missing key"
)

Common error codes:

errno errmsg Description
50 access denied Unauthorized IP or referrer.
90 invalid country code Invalid country code.
91 name not set || email not set Missing input field.
92 too many names || too many emails Exceeded bulk limits.
93 limit reached API key credits exhausted.
94 invalid or missing key Invalid API key.
99 API key has expired Renew your key.

💻 Troubleshooting

  • Check internet connection.
  • Ensure your API key is correct.
  • Confirm required R packages are installed: 
    install.packages(c("httr", "jsonlite"))

🔗 Live Test Pages

📚 Detailed API Documentation

See full API docs:

https://www.genderapi.io/api-documentation

⚖️ License

MIT License

Read the original on github.com ↗