quickfix/quickfix

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1982 stars · 885 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

QuickFIX is a free, open-source C++ implementation of the FIX (Financial Information eXchange) protocol, serving as a full-featured messaging engine supporting FIX versions 4.0 through 5.0 SP2 and FIXT 1.1. It offers Python and Ruby bindings via SWIG, SSL/TLS support through OpenSSL, pluggable message stores and logging, and database-backed message storage with MySQL, PostgreSQL, and ODBC.

Use cases

• connect to a broker or exchange using the FIX protocol
• build a FIX initiator or acceptor for electronic trading
• implement FIX 4.2 order entry in C++
• add FIX connectivity to a trading system with Python bindings
• store FIX messages durably in MySQL or PostgreSQL
• secure FIX sessions with SSL/TLS

When to choose

• you need a battle-tested, production-grade FIX engine used by banks and trading firms
• you need broad FIX version support from 4.0 to 5.0 SP2 including FIXT 1.1
• you need C++ performance with optional Python or Ruby bindings
• you need cross-platform support on Windows, Linux, and macOS

When to avoid

• you need FIX support for a language other than C++, Python, or Ruby
• you want a modern actively-redesigned API rather than a mature legacy codebase
• your project does not involve FIX protocol messaging at all

Facets

library · maturity stable

networking serialization cryptography database-driver logging fintech networking developer-tools cpp windows python ruby cross-platform fix-protocol fix-engine trading electronic-trading messaging-engine swig-bindings openssl financial-protocol linux macos

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