Build solutions with the Open Source reference implementation
Start DEVELOPING WITH the SCION open source NOW
DISCOVER the SCION open source code
Start by checking out the SCION open source code, granting you access to the core components necessary for contributing to the development and enhancement of SCION’s capabilities.
EXPLORE the open source documentation
Discover comprehensive guides and resources to help you become familiar with SCION’s architecture and functionality.
Connect with the community
Supported by the NLnet foundation
Open source updates
JULY OPEN SOURCE UPDATE
Q2 2025 OPEN SOURCE UPDATE
Q1 2025 OPEN SOURCE UPDATE
Q4 2024 OPEN SOURCE UPDATE
Frequently asked questions
Where can I find the source code?
Just follow this link: github.com/scionproto/scion.
How can I contribute to the open-source SCION implementation?
Details are provided in the contribution guide that you can find here: https://docs.scion.org/en/latest/dev/contribute.html.
What license is the source code under?
Apache License, Version 2.0.
Who governs the SCION open-source project?
The “Implementation Committee” of the SCION Association is the custodian of the open-source implementation.
How can I easily test SCION?
SCIONLab is a global overlay research and development SCION network. You can join, run your own SCION autonomous systems (ASes), and experiment with the full SCION Stack. See more: https://www.scionlab.org/.
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