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    licence · FSL-1.1-Apache-2.0

    use it for anything except a competing product.

    FSL-1.1-Apache-2.0 licensed; source release planned. each release converts to Apache 2.0 two years after it ships.

    platform license

    FSL-1.1-Apache-2.0

    The Ivy Biosciences platform is licensed under the Functional Source License, Version 1.1, Apache 2.0 Future License (FSL-1.1-Apache-2.0). This license allows you to use, copy, modify, and redistribute the software for any purpose other than a Competing Use, and guarantees that the software will become available under Apache 2.0 after two years. The repositories are not public yet; a source release is planned.

    what you can do

    • Use the platform for research, academic work, and internal business purposes
    • Modify and customize the code for your organization's needs
    • Contribute improvements back to the community
    • Build integrations and extensions
    • Use in commercial settings (except competing products)

    what's restricted

    • Competing Use: You may not use the software to provide a commercial product or service that competes with Ivy Biosciences
    • This restriction expires after two years, when the code converts to Apache 2.0

    Change Date: Two years after each release, that version automatically converts to the Apache License, Version 2.0, giving you its full permissive rights.

    licensing options

    who can use it, on what terms.
    • research & academic

      Free to use under FSL-1.1-Apache-2.0. Academic institutions, researchers, and students can use the full platform at no cost. We also offer enhanced support and resources for educational use.

      free

    • commercial use

      Biotech startups, pharma companies, and CROs can use the platform for internal research under FSL-1.1-Apache-2.0. We offer a freemium model: 500 credits/month free, with paid tiers for higher usage. Which tools each tier reaches is listed in plans and tiers.

      500 credits free

    • enterprise

      Compliance features (21 CFR Part 11, e-signatures, audit trails), SSO/SAML, white-label branding, and dedicated support are available under separate enterprise licensing agreements.

      custom licensing

    third-party components

    Our platform integrates numerous open-source scientific tools, each with their own licenses. We acknowledge our debt to these projects and their maintainers:

    RDKit
    BSD-3
    Mol*
    MIT
    BioPython
    BSD-3
    ESMFold
    Apache 2.0
    DiffDock
    MIT
    OpenMM
    MIT

    See our AI Models page for complete attribution and license information for each integrated tool.

    questions about licensing?

    Contact us to discuss enterprise licensing, custom agreements, or clarification on permitted uses under FSL-1.1-Apache-2.0.

    Last updated: October 2026. The complete license text is at fsl.software; the repositories, and the LICENSE file in each, are not public yet.

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