gistfile1.js

#!/usr/bin/env node

var program = require('commander');
var request = require('request');

var userId, apiKey;
console.log('Enter your API credentials to see your current settings...');

program.prompt('User ID: ', function(uid){
  userId = uid;
  program.password('API Key: ', '*', function(key){
    apiKey = key;
    process.stdin.destroy();

    request('https://sendgrid.com/api/parse.get.json?api_user='+userId+'&api_key='+apiKey, function(err, res, body){
      if (!err & res.statusCode === 200){
        var settings = JSON.parse(body);
        console.log('Here are your Inbound Parse API settings:\n');
        for(var i = 0; i < settings.parse.length; i++){
          console.log(i+1+'. '+settings.parse[i].hostname+' -> '+settings.parse[i].url+'\n');
        }
        console.log('\nHave a nice day!');
      } else {
        console.log('Ooops! Looks like errors!');
      }
    });
  });
});