twitter.js

var request = require("request");

var EMBEDLY_KEY = '8c394ac3008745d48fe82133e6acc577';

var embedly = require('embedly');
var util = require('util');

// new embedly({key: EMBEDLY_KEY}, function(err, api) {
//   if (!!err) {
//     console.error('Error creating Embedly api');
//     console.error(err.stack, api);
//     return;
//   }
// });

var summarize = function(url, callback) {
  request("https://api.embed.ly/1/extract", {
     qs: {url: url, key: EMBEDLY_KEY}
   }, function(error, response, body) {
    if (!error && response.statuCode == 200) {
      callback(JSON.parse(body));
    } else {
      console.log("modules/embedly#summarize", error, response);
    }
   });
};

// exports.summarize = summarize;
 
var Twit = require("twit");
var embedly = require('embedly');

var T = new Twit({
    consumer_key:         'i7lsLu4dOv66EEDzCWEifyoXd',
    consumer_secret:      '3I7NQsQsjQpCsadhN8t1Ry9Xb3oglUsDTzME6Cc0EGLvrVmZQB',
    access_token:         '1067293915-gXahWnpOxPZydxkzAO4YzWNfhaSkZp8Nz6KfW4L',
    access_token_secret:  '1e8Y0rCaLlz9SkdlIqBuMsBbEJvDY1SUb9ZClh6WNkmim',
});
 
var tweets = [];
var urls = [];
var urlPattern = /(http|ftp|https):\/\/[\w-]+(\.[\w-]+)+([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])?/
 
T.get('statuses/user_timeline', { 'screen_name' : 'claykohut', 'count': 100 }, function(err, reply) {
  for (i in reply){
    tweet = reply[i].text;
 
    if (urlPattern.test(tweet)){
      console.log(tweet);
      tweets.push(tweet);
      var urlRegex = /(https?:\/\/[^\s]+)/g;
      tweet.replace(urlRegex, function(tweet) {
        console.log(tweet)
        urls.push(tweet);
      })
    }
  }

  urls.forEach(function(url) {
    summarize(url, function(summary) {
             console.log(summary);
      });
    });
    console.log(tweets.length)
})

The docs describe a REST api. REST apis are used by pretty much all services that need to communicate with code running on servers. Having said that, you wouldn't really find docs on how to do this within embedly, embedly would just provide endpoints and you would expected to be able to code your way to them. Every language running on servers has a way to make basic http requests.

For example

You can just hit their endpoint from your terminal using curl or any other tool that can make a get request to an endpoint.

$ curl -v "https://api.embed.ly/1/extract?url=SOME_URL&key=EMBEDLY_KEY
     qs: {url: url, key: EMBEDLY_KEY}

Additionally, you could copy and paste the same URL and put it into your browser and see the result. No libraries required, you just need something to make the http request.