NautilusTrader

What it is

An algorithmic trading platform with a Rust core and Python bindings, where the same strategy code runs in nanosecond-resolution backtests and in live execution. Modular REST and WebSocket adapters link it to crypto exchanges, betting venues, and markets for FX, stocks, futures, and options, with support for advanced and contingency order types and strategies that span several venues. Quant developers and trading firms use it to move strategies from research to production without rewriting them, and to train reinforcement-learning trading agents.