A Own trading application develop
We offer API and FIX CTCI solutions that allow you to build your own trading applications, source market and chart data, and view your CapTrader custody account data - with technology that fits you. Our technologies interlock and complement each other, so you can create a trading solution that is perfectly tailored to your needs.
- You can choose between several available API programming languages, such as Java, .NET (C#), C++, ActiveX or DDE.
- If you are quite new to API programming, you can use our DDE-for-Excel API sample as a basis for your DDE-based trading application.
- No additional technical effort is required for the IB API.
Show depot data
Access all key CapTrader custody data, such as positions, balances and margin requirements, through your own IB API application and use IB Gateway to access your custody data through a seamless, minimalist interface.
The best API for you
Not sure which of our APIs is right for you? Learn more about the solutions we offer and compare their key features to find out which API solution best fits your requirements.
IB API
Your program, our trading system: With our proprietary API solutions, you can create your own trading programs that benefit from our high-speed order routing and our distinctive market depth.
FIX-CTCI
Solutions for FIX-CTCI traders: Using our proprietary FIX-CTCI solutions, you can develop your own trading system that takes advantage of our high-speed order routing and distinctive market depth.
Receive market data and chart data
With IB API, you can subscribe to and view market data through your customized application while benefiting from Trader Workstation, our innovative trading platform. Via IB Gateway you connect to IB market data and thus enjoy the seamless integration and minimalistic interface.

Open a securities account now and use Use API solutions
Use the possibilities of your own applications in connection with the API solutions of the depot at CapTrader.
Frequently asked questions about trading via API
Can I connect external trading software?
Yes, you can. The API allows you to program your own applications, use third-party software, and expand the trading platform. You can find more information about this at: Trading via API