CTSFutures 

T4 API

CTS Futures - T4 Definitions

CTS Futures - T4 Messages

CTS Futures - T4 Trace Listener

CTS Futures - T4 Connections

CTS Futures - T4 Grid

CTS Futures - T4 Data

T4 Chart Data API

CTS Futures - T4 Plugin

T4 API package without charting and SQLite dependencies.

Plus500US Futures Technologies - T4 Protocol Buffers

Plus500US Futures Technologies - T4 Chart Decoder