nautilus-core

Core foundational types and utilities for NautilusTrader.

The nautilus-core crate is designed to be lightweight, efficient, and to provide zero-cost abstractions wherever possible. It supplies the essential building blocks used across the NautilusTrader ecosystem, including:

• Time handling and atomic clock functionality.
• UUID generation and management.
• Mathematical functions and interpolation utilities.
• Correctness validation functions.
• Serialization traits and helpers.
• Cross-platform environment utilities.
• Abstractions over common collections.

NautilusTrader

NautilusTrader is an open-source, production-grade, Rust-native engine for multi-asset, multi-venue trading systems.

The system spans research, deterministic simulation, and live execution within a single event-driven architecture, providing research-to-live semantic parity.

Feature flags

This crate provides feature flags to control source code inclusion during compilation:

• ffi: Enables the C foreign function interface (FFI) from cbindgen.
• python: Enables Python bindings from PyO3.
• extension-module: Builds as a Python extension module.

Documentation

See the docs for more detailed usage.

License

The source code for NautilusTrader is available on GitHub under the GNU Lesser General Public License v3.0.

NautilusTrader™ is developed and maintained by Nautech Systems, a technology company specializing in the development of high-performance trading systems. For more information, visit https://nautilustrader.io.

Use of this software is subject to the Disclaimer.

© 2015-2026 Nautech Systems Pty Ltd. All rights reserved.