Interactive Brokers

IB API

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Our proprietary API solutions let you create your own automated rule-based trading system
that takes advantage of our high-speed order routing and broad market depth.

IB API

IB API Software

Program traders may build their own add-on applications in Excel (using DDE or ActiveX), C++, Posix C++, Java, and Visual Basic for ActiveX with our proprietary IB Application Program Interface (API), which requires connectivity via either the TWS or the IB Gateway. We encourage API users to test their API components with their PaperTrader or the TWS Demo System before actually implementing any new API systems.

Use the following table to see which API technology best fits your needs.


Access Technology Programming Expertise Performance Code Platform Time to Production Has Sample Application
Java to Socket Professional Very robust and reliable; high performance. Available for all platforms including Windows, Mac, UNIX/Linux. High learning curve; longer time to production. Yes
C++ to Socket Professional Very robust and reliable; high performance. Sample code for Windows only. Socket protocol is platform independent. High learning curve; longer time to production. Yes
VB to ActiveX 1 Intermediate Somewhat robust and reliable (ActiveX can lose events); fairly high performance. Windows only. Medium learning curve; moderate time to production. Yes
DDE for Excel Beginner Limited; uses obsolete technologies; lower performance. Windows only. Small learning curve; rapid development time Yes
POSIX C++ Professional Very robust and reliable; high performance. POSIX-compliant platforms (Linux, (Non-MFC Windows applications) High learning curve; longer time to production. Yes
(Limited functionality)
  1. Also included in IB's API software is an Active X for Excel sample client for those customers who want to take advantage of our Active X API in an easy-to-use spreadsheet interface.

Any trading symbols displayed are for illustrative purposes only and are not intended to portray a recommendation.

Interactive Brokers LLC is a member of NYSE, FINRA, SIPC