For any trader who wants to 
play big, there comes a time when he needs to enter the 
international trading markets and, in particular, one of the largest markets – the 
US market. The abundance of brokers providing their services to the trader 
is not always beneficial, as various offers and conditions often put the trader at a standstill. 
Let's look at the largest by the 
number of transactions per trading day company Interactive Brokers. Today, we can safely say that this company is the 
most technologically advanced company in the States in its field providing users with various types of connection to work through 
Interactive Brokers API.
It is 
very important that the broker 
works not only with US citizens, but also foreigners and tries to fully provide all 
technical support to foreign users. 
A little history about 
Interactive Brokers. This broker has been 
working in the US market since the late 70s. For all the time of its work, the broker has 
established itself as a 
reliable, advanced in information technology partner. An important fact is that the broker is the 
only one in its field in the US market 
has its own clearing company. From 2010 to 2017, according to experts, 
Barron's Interactive Brokers was awarded the title of 
leader among online brokers. The broker is among the 
top ten, according to the resource 
www.stockbrokers.com, among online brokers. To date, the 
equity of the broker amounted to 
more than $6 billion, the 
market value ranges from 
$16 billion.

One of the 
important aspects to get started is opening an account with a broker. What are the positive aspects of broker account registration at 
Interactive Brokers:
- 
Registration takes place online, in which you fill out the necessary forms to open; 
- 
Copies of documents for opening a brokerage account must be provided in 
electronic form.
After a 
few days, after the verification your account will 
be activated. Do not rush to transfer money before the end of the test, as you will not be able to use them until the documents are checked.

After it became available for the management of a brokerage account in the personal Cabinet you 
need to create a request for replenishment of funds. 
Different currencies can 
be used to replenish the account, which simplifies the task for users. 
Let's look at what types of 
platforms Interactive Brokers offers for trading:
- 
Mobile version of the platform, which enables online trading through mobile gadgets with 
iOS and 
Android operating systems;
- 
Desktop version of the platform Trader Workstation (TWS), which is a full-fledged terminal for work

- 
WEB application - 
WebTrader, built on 
HTML, allowing online use of trading functions and tools.
The
 Interactive Brokers API requires 
special attention. With all the 
positive reviews about 
Interactive Brokers, there is a very important point. The broker 
provides open source code to create its own application based on its 
API. 
Many users who first open 
Trader Workstation, the desktop version of the terminal, are confused. The abundance of seemingly different related information on the screen leads to confusion. Quite a long time design, makes use of the terminal is very inconvenient and causing a large number of questions. 
In order to correct the situation, the 
broker provided access to the 
Interactive Brokers API libraries, so that each user would have the opportunity to
 create their own terminal. 

Applications that are 
created using Interactive Brokers API have 
full functionality, have 
access to the user's 
open accounts, 
access to 
market data and 
trading charts. 
A wide range of
 programming languages is limited only by the choice of operating system for some of them:

Having the 
ability to create their own application, the user 
creates a convenient environment for work. For the convenience of 
creating your application, we recommend using our 
S#.API. 
This program allows you to 
use libraries to create the necessary software product for the trader – terminal, using the 
C#. The library's own 
API, allows you to expand the capabilities of the 
created terminal. The integrated ability to
 connect through the necessary Protocol, such as 
FIX Protocol, through our connectors, allows you to 
simplify the user's work, thereby reducing the time for the 
development and adaptation of the application to
 work on the trading floor.