The natural language identification service can detect the language of a piece of text.

supported languages(82)

af: Afrikaans, ar: العربية, az: Azərbaycan dili, bg: български език, ca: català, cn: 中文, cs: čeština, cy: Cymraeg, da: dansk, de: Deutsch, en: English, es: Español, et: eesti, eu: euskara, fa: فارسی, fi: suomi, fr: français, ha: هَوُسَ, hi: हिन्दी, hk: 漢語, hr: hrvatski jezik, hu: magyar, id: Bahasa Indonesia, is: Íslenska, it: Italiano, ja: 日本語, kk: қазақ тілі, ko: 한국어, ky: Кыргызча, la: Latīnum, lt: lietuvių kalba, lv: latviešu valoda, mk: македонски јазик, mn: Монгол хэл, ne: नेपाली, nl: Nederlands, no: Norsk, nr: isiNdebele, pl: język polski, ps: پښتو, pt: Português, ro: Română, ru: Русский, sk: slovenčina, sl: slovenski jezik, so: Soomaaliga, sq: Shqip, sr: српски језик, ss: SiSwati, st: Sesotho

Get your API key from here. Use this web service with any programming language that supports HTTP calls. The input is in JSON format {text: "text string"} and the output is also in JSON format {code: 'lang_code'}.

Javascript:

const url = "https://apihub.biz/api/lang/your_api_key";
fetch(url, {
  headers: {
    "Content-Type": "application/json"
  },
  method: "POST",
  body: JSON.stringify({text: "企业家"})
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error(error));

The returned JSON result of this example is {code: 'cn'}. The language code 'cn' means Simplified Chinese.

Ruby:

require 'net/http'
require 'uri'
require 'json'

res = Net::HTTP.post URI('https://apihub.biz/api/lang/your_api_key'),
  { 'text' => 'een mooie plek' }.to_json,
  'Content-Type' => 'application/json'

if res.is_a?(Net::HTTPSuccess)
  puts JSON.parse(res.body) # => {"code"=>"nl"}
else
  puts res.message
end