CTS offers an open API, T4 API, which allows for third party developers to develop
their own applications while using the scalability, speed, reliability and robustness
of CTS's back-end.
Easy to Use
T4 API simplifies development, saving the developer time and frustration. CTS's
own T4 Desktop is written directly to T4 API, which allows for any functionality
available on the T4 front ends to be duplicated on any other 3rd party application.
Microsoft.NET technologies permits applications to be written in languages such
as advanced C++, C#, and Visual Basic, among many more. Visual Studio 2005 and later
is supported. The T4 API utilizes a single SSL connection, enabling easy passage
through firewalls. T4 API allows a hosted back-end with many FCM customers that
provide developers with several options for clearing.
Trades that are placed through the T4 API are visible from any instance of the API
and the T4 front end that has access to that account. This allows the developer
to focus on his own application, while still being able to use the T4 front-end's
components, such as the order book.
CTS's specialized development support team provides T4 API support at no cost. Working
code examples are provided free of charge in order to facilitate a developer in
connecting to T4 API instantly.
For questions regarding access to T4 API, please email
Please sign up to our developer newsletter here.
Example API applications are installed with the T4 Desktop Simulator application
and accessed via your Start menu, Programs, T4 Simulator folder links. You can access
the online help documentation
Register for a free simulator account
Pricing and Access
Access to the API is included with the T4 Desktop frontend. Pricing is shown at
the bottom of this page. There are no additional market
To use your application live you need to have an account with a clearing firm that
offers T4, you can see a list of them here.