Does anyone know of any API's out there that can determine gender based on a few of the following:

  • Name
  • Username
  • Posts/Text/How they Talk
  • Location
  • Profile Description
  • Picture

Or if such an API combining all of those aren't available; would it be a good idea to combine various APIs together and build an application to handle all those features?

I do not want to step in the world of natural language processing, image processing; so that's why I'd rather call a service built by professionals.

  • 2
    Location has no bearing Posts/Text/How they talk does not have a good degree of gender determined features. Name/Username/Profile Description/Picture has no guarantee of any basis in reality - lots of username/name will be totally non-normal names so not really guessable (like dev_akm not much to guess from that), and lots of people will totally bull that (ie my girlfriends brother often goes for profile names that are <swearing><female name>). In summary the degree of accuracy of anything you find is going to be quite limited. You could find some that will work in many case; I don't know any. Commented May 9, 2014 at 17:06
  • @NickWilde the app will interact with users, so even if it isn't accurate; i can get them to verify which of their followers' genders we guessed wrong. The issue here is to not have them tell us the gender for ALL of their followers.
    – Ramie
    Commented May 9, 2014 at 17:14
  • Ah yes that makes sense - with a bit of user interaction it could be a good time-saver without the problems of inaccurate pictures/descriptions/names (heck it could guess I'm a doe - female goat - from my profile picture here but that would be quite inaccurate and easy to see to anyone reviewing) Commented May 9, 2014 at 17:25
  • "Posts/Text/How they Talk": For what language? English?
    – Nicolas Raoul
    Commented May 12, 2014 at 6:07
  • yup, anyways i ended up using www.datumbox.com/machine-learning-api/ for text analysis
    – Ramie
    Commented May 12, 2014 at 16:34

2 Answers 2


I would be surprised if you find any API combining those features. As the two most useful features are certainly the picture and the name by far, I would use a Face gender detection API such as Lambda Labs's API (picked randomly, you might want to search for benchmark if there are any), combined with a name to gender mapping. To solve the conflicts , you might want to try to find some API returning an answer (male/female) attach with some interval of confidence. Also I would guess males tend to use female pictures more often females tend to use male pictures, but that's probably depend on your applications so you might want to do some basic stats on that side to.


In PHP you could write a simple function like this


/* vorname=firstname
   geschlecht=gender */
function analyse_fullname($fullname=null){
    ))) $r["titel"]="Herr";

    ))) $r["geschlecht"]="W";
    if ($r["geschlecht"]=="M") $r["anrede"]="Sehr geehrter Herr ".$r["fullname"];
    else $r["anrede"]="Sehr geehrte Frau ".$r["fullname"];
    if ($r["geschlecht"]=="M") $r["doktoranrede"]="Sehr geehrter Herr Dr. ".$r["fullname"];
    else $r["doktoranrede"]="Sehr geehrte Frau Dr. ".$r["fullname"];
    return $r;

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