The reasons for the high popularity of our software products are their convenient interfaces and rich features. Moreover, MetaQuotes Software Corp. always takes into account suggestions coming from both customers and traders and has developed an open application interface called MetaTrader Application Program Interface (API). MetaTrader API makes it possible to develop custom software applications used for automating business processes. MetaTrader API possesses a lot of functions that can be called virtually from any software development environment for Microsoft Windows. A qualified software developer gets rich functionality of the MetaTrader system at her/his disposal and can create custom software using a programming language s/he prefers.

MetaTrader API contains the following components aimed at working with the corresponding system modules:

• MetaTrader Server API — the interface providing access to server features in the form of a plugin;

• MetaTrader Manager API — the interface of the manager terminal providing features both additional client information processing, and implementation own unique business-logic;

• MetaTrader DataFeed API — the interface of plugins implementing data delivery (quotations and news) to the system;

The application interfaces of each component in the complex are distributed together with the corresponding component and can be found in the API directory. Open interfaces of all MetaTrader API components are provided. Besides, the source code of MetaTrader Server API and DataFeed API components are also supplied as open source in C++. Detailed examples of creating user applications allow you to use MetaTrader API to get acquainted with the principles of software interaction.