Why official

The engine is open source by design. You and your auditors can read its logic and verify how it behaves, rather than trusting a black box. The more serious the stakes, the more that transparency matters.

The moment you fork the open-source NautilusTrader, you take on its maintenance and security burden: patch review, dependency audits, and release validation become yours to carry. The institutional tier keeps you on a supported, certified line of official Nautilus, so your engineering effort goes into your strategies and operations rather than into maintaining a private fork.

NautilusTrader has been built and maintained for over a decade, and because the engine is open source, your ability to run it never depends on us alone.

Certified builds

Signed, reproducible, version-pinned builds with additional review, carrying our Nautilus Certified attestation. Official release artifacts carry SLSA Build Level 3 provenance for wheels and sdists, Sigstore-attested SPDX SBOMs for container images, and signed checksum manifests, all verifiable with standard tooling by auditors, counterparties, and LPs. Each certified build also carries the determinism and auditability properties of the engine:

Attribution and support

Attribution and direct support go together: contribute attribution, and it opens up a direct line to the core team.