--- layout: default navsection: userguide title: "Arvados Free Software Licenses" ... {% comment %} Copyright (C) The Arvados Authors. All rights reserved. SPDX-License-Identifier: CC-BY-SA-3.0 {% endcomment %} Every source file has @SPDX-License-Identifier@ header that identifies the exact copyright license that applies to that file. In general, Arvados server-side components and system administration tools contained in the @services/@, @lib/@, @apps/@, @cmd/@, and @tools/@ directories, including the API Server, Workbench, Keep, and Crunch, are licenced under the "GNU Affero General Public License version 3":agpl-3.0.html. The Arvados client tools and Software Development Kits contained in the @sdk/@ directory and code samples in the Aravados documentation are licensed under the "Apache License, Version 2.0":LICENSE-2.0.html. The Arvados Documentation located in the @doc/@ directory is licensed under the "Creative Commons Attribution-Share Alike 3.0 United States":by-sa-3.0.html.