FIX for C++, Python, and Ruby

The original QuickFIX engine!

It implements the FIX Protocol in C++.

Ruby and Python interface bindings are also available!

QuickFIX/C++ is 100% free and open source with a liberal license.

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the docs
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github

Credits

Thanks to Oren Miller, the creator of QuickFIX. All other QF implementations trace their lineage back to this one.

Also thanks to Jim Downs, CEO of Connamara Systems, for supporting the open-source initiative for QuickFIX.

And of course, thanks to those who have helped make make QuickFIX the robust project that it is today.