Different Whisperer Classic API versions are available, as outlined below:

NameVersionJavaC#C++Features
Classic3.13YESYESYES

Maker/CLOB Venues only,

This version should not be used for new development. Only bug fixes will be released here.


Classic3.14YESYESYES

This version provides additional support for Taker Venues. Use this versionĀ if you need making, taking, and market data services.

SBE33.13NoNoNo
SBE33.14YESNoYESDelivery to MFAPI client of prices directly from Feed Handler. This version has basic market data and taking functionality. The SBE protocolĀ 
decreases encoding, decoding and transmission latency.


Further detail is provided in the following page(s):