FLOX – C++ framework for building trading systems
Finished my trading infrastructure project over the weekend - it’s called FLOX. Built in pure C++ (uses C++20 features), it’s a modular framework for building HFT systems, trading infra, market data feeds, or even something like a TradingView clone. Everything is open source: https://github.com/eeiaao/flox Docs: https://eeiaao.github.io/flox/ There are tests and benchmarks to keep it stable. Might add JS engine support later for scripting strategies. Open to feedback and contributions.
FLOX – C++ framework for building trading systems launched on June 2, 2025 with 19 votes, #820 of 7,999 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
FLOX is an open-source C++20 framework designed for building high-frequency trading systems, trading infrastructure, and market data applications. It offers modular components that developers can use to create trading platforms or market data solutions. The framework includes tests and benchmarks for stability and is available on GitHub with documentation. The creator plans to add JavaScript engine support for strategy scripting in future updates.
written from the facts on this page · September 2026
From the sources
AI-native framework for building trading systems with polyglot bindings. - FLOX-Foundation/flox
FLOX is an AI-native framework for building trading systems. Strategies, backtests, paper trading, and live execution sit behind one toolkit. AI agents discover the surface and drive it end-to-end through an MCP control plane. One strategy class runs backtest, paper, and live. Bindings for Python, Node.js, Codon, embedded JavaScript, and a stable C API. Documentation is available at flox-foundation.github.io/flox All bindings expose the same strategy API, indicators, order books, backtesting, and data I/O. The C API is the integration point for adding support for any other language. flox-mcp is a Model Context Protocol server that gives AI coding agents (Cursor, Claude Code, Cline) grounded…from github.com
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