QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.
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Updated
Aug 16, 2026 - Java
QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.
The Go FIX Protocol Library 🚀
Simple Golang FIX API library
Pre-built wheels for QuickFIX (untested): a Financial Information eXchange (FIX) protocol engine.
FIX library for crystal
Basic implementation of Financial Information eXchange protocol in Julia
A production-grade FIX protocol engine in Rust, at feature parity with QuickFIX/J — first-class acceptor/sell-side support, dual-track data dictionary, and FIX conformance (acceptance tests) as the release gate.
Bitwyre's Exchange Client
FIX (initiator-side) session engine in Elixir
This set of scripts is used to process custom FIX specifications which are outside the official standard.
A Java Swing application that uses QuickFIX/J to parse FIX (Financial Information eXchange) messages with a graphical interface.
The Financial Information Exchange (FIX) Protocol Engine
A FIX 4.4 session boilerplate in Go, built around a fake exchange you can command. Learn sequence gaps, resends and stuck sessions with curl.
Fix application for exchange heavy load testing
Gravity Asset Manager is not just a dashboard; it is a high-frequency intelligence engine. Driven by the MMAM Strategic Hub, the platform integrates advanced agentic orchestration with low-latency execution to provide a unified command center for modern capital management.
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