CodeSupply Fund
NLnet’s CodeSupply open calls fund free and open-source work that improves the reliability of software supply chains. The program brings together software metadata from authoritative sources so that people and organizations can better understand provenance, licensing, vulnerabilities and software quality. Reference datasets are curated and federated into a unified catalog, making them freely available as open data.
Key Details
- First call opens: 2026-09-03.
- Application deadline: 2026-11-03 at 12:00 CET, noon.
Funding or Award
- €400K of the program budget is reserved for open calls supporting complementary research and development.
- Individual proposals should request €5K – €50K for practical work aligned with CodeSupply’s goals.
Focus Areas
Program Objectives
- Improve the availability of current, accurate and comprehensive software metadata.
- Establish sustainable ways to provide broad, scalable access to datasets.
- Build a foundation for future improvements, additional datasets and new capabilities.
Supported Contributions
- Add capabilities to software being developed within CodeSupply or build supporting tools.
- Improve the user experience of software metadata and supply-chain tools.
- Integrate relevant capabilities into free and open-source applications and open standards.
- Strengthen the infrastructure underlying the program’s stack.
- Introduce new approaches or improve and scale existing technologies, with an emphasis on practical impact.
Eligibility
- Independent researchers, developers and organizations contributing free and open-source technology may apply.
- The proposed work must support CodeSupply’s objectives and the broader Open Internet Stack, including software security, supply-chain transparency and regulatory or open-source compliance.
Application Process
- Review the applicant guide, eligibility clauses and FAQ linked from the CodeSupply page.
- Submit a proposal through NLnet’s application form.
Rules and Conditions
- Project results must be released under a recognized free or open-source license.
- Contributions must produce a concrete improvement toward the program’s goals. The program encourages norms and standards supporting interoperability and resilient implementations.