fix44

Modern open source C++ FIX framework featuring complete schema customisation, high performance and fast development.

A NestJS implementation of the FIX protocol for financial trading. High-performance TCP messaging with session management, message validation, recovery, and Redis-backed stores.

Simple client/server example that can be used as a starting point for development using Fix8Pro

Send orders from a MetaTrader 5 account to any FIX 4.4 venue

A modern, fully-typed FIX protocol library for TypeScript. QuickFIX-style engine, zero dependencies, initiator and acceptor, FIX 4.2 to 5.0.

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.

MockFIX — FIX protocol simulator for capital markets testing. Compose FIX 4.4 messages in plain English, test order routing, auto-response rules, and execution engine. QuickFIX alternative for QA teams and BAs.