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NautilusTrader

Open-source algorithmic trading platform: a Rust-native core engine with a Python API for

For agents: Open-source algorithmic trading platform with a Rust core and Python API; docs cover backtesting with BacktestNode and BacktestEngine, plus quality and security

algorithmic tradingbacktestingrustpython apiopen source

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T15:52:34.622Z. Cached copy · Source on nautilustrader.io

# NautilusTrader

> Open-source algorithmic trading platform: a Rust-native core engine with a Python API for
> backtesting and live deployment of multi-asset, multi-venue trading systems from a single
> codebase.

## Key facts

- NautilusTrader is developed by Nautech Systems Pty Ltd (ABN 88 609 589 237), founded in 2015 and
  self-funded with no outside investors.
- The open-source engine is licensed LGPL-3.0-or-later. Source is on
  [GitHub](https://github.com/nautechsystems/nautilus_trader); packages are published to
  [PyPI](https://pypi.org/project/nautilus-trader/) and [crates.io](https://crates.io/crates/nautilus-core).
- The open-source engine supports research, backtesting, simulation, and live trading workflows.
- The architecture uses an event-driven core, nanosecond timestamps, deterministic replay, and
  shared engine semantics between backtest and live environments.
- Python strategy code runs against performance-sensitive Rust components.
- 40,000+ automated unit, integration, acceptance, property-based, and simulation tests run across
  Python and Rust, with nightly Miri checks and deterministic simulation testing (DST).
- Wheels carry SLSA build provenance, Docker images are Cosign-signed with Sigstore-attested SPDX
  SBOMs, and PyPI and crates.io releases use Trusted Publishing (OIDC).
- NautilusTrader is trading software only. Nautech Systems is not a broker, dealer, exchange, or
  financial adviser.

## Site

- [Open source](https://nautilustrader.io/open-source/) (available): open-source engine, releases, provenance, and getting started
- [Quality](https://nautilustrader.io/quality/): testing, deterministic simulation, benchmarks, and release gates
- [Security](https://nautilustrader.io/security/): security policy, responsible disclosure, and supply chain posture
- [Supply chain policy](https://nautilustrader.io/security/supply-chain/): dependency auditing, build provenance, and release verification
- [Responsible disclosure](https://nautilustrader.io/security/responsible-disclosure/): how to report a vulnerability ([security.txt](https://nautilustrader.io/.well-known/security.txt))
- [Stats](https://nautilustrader.io/resources/stats/): public order-flow statistics attributed to NautilusTrader
- [Stats API](https://nautilustrader.io/api/v1/stats/): the same statistics as JSON, per venue with daily and monthly rows; a count the venue does not expose is null
- [Cloud platform](https://nautilustrader.io/cloud-platform/) (in development): planned non-custodial cloud infrastructure and self-hosted deployment options
- [Institutional](https://nautilustrader.io/institutional/) (available): engagement tier for firms trading at scale, contact institutional@nautilustrader.io
- [Pro](https://nautilustrader.io/pro/) (waitlist): high-performance, user-controlled infrastructure for systematic traders
- [Prediction markets](https://nautilustrader.io/prediction/): backtesting, simulation, and live trading on prediction markets
- [Blog](http
…

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