SteemJS

$ npm install steem --save

var steem = require('./lib/steem');
var Steem = new steem();

Steem.getAccount('steemit', function(result, err) {
	console.log(result, err);
});

var data = {
	'id': 1,
	'method': 'get_accounts',
	'params': [['steemit']]
};

Steem.send(data, function(result, err) {
	console.log(result, err);
});

Steem.getAccounts(['ned', 'dan'], function(result, err) {
	console.log(result, err);
});

Steem.getAccount('steemit', function(result, err) {
	console.log(result, err);
});

Steem.getBlock(3000000, function(result, err) {
	console.log(result, err);
});

Steem.streamBlockNumber(function(result) {
	console.log(result);
});

Steem.streamBlock(function(result) {
	console.log(result);
});

Steem.streamTransactions(function(result) {
	console.log(result);
});

Steem.streamOperations(function(result) {
	console.log(result);
});