CQG API is available to CQGNet Professional package subscribers.
The customer must have the corresponding API enablements turned on in order to be able to use the API.
Each enablement has an additional cost, having effect after the trial period, if any.
Using the CQG API requires the user to be logged into CQG Integrated Client. Note that the user application should be running on the same machine as the CQGIC.
Certain features of CQG API require the user to be logged into CQG Gateway as well.
The user code must be written in a programming language that supports automation technology, for example: C++, Visual Basic, VBA, .NET languages, Python.
System Requirements:
See at http://www.cqg.com/support/system-specifications