Thank you for your interest in MetaMask ("MetaMask"). In order to clarify the intellectual property license granted with Contributions from any person or entity, MetaMask must have a Contributor License Agreement ("CLA") on file that has been signed by each Contributor, indicating agreement to the license terms below. This license is for your protection as a Contributor as well as the protection of MetaMask and its users; it does not change your rights to use your own Contributions for any other purpose.You accept and agree to the following terms and conditions for Your present and future Contributions submitted to MetaMask. Except for the license granted herein to MetaMask and recipients of software distributed by MetaMask, You reserve all right, title, and interest in and to Your Contributions.
1. Definitions
"You" (or "Your") shall mean the copyright owner or legal entity authorized by the copyright owner that is making this Agreement with MetaMask. For legal entities, the entity making a Contribution and all other entities that control, are controlled by, or are under common control with that entity are considered to be a single Contributor. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "Contribution" shall mean any original work of authorship, including any modifications or additions to an existing work, that is intentionally submitted by You to MetaMask for inclusion in, or documentation of, any of the products owned or managed by MetaMask (the "Work"). For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to MetaMask or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, MetaMask for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by You as "Not a Contribution."
2. Grant of Copyright License
Subject to the terms and conditions of this Agreement, You hereby grant to MetaMask and to recipients of software distributed by MetaMask a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Your Contributions and such derivative works.
3. Grant of Patent License
Subject to the terms and conditions of this Agreement, You hereby grant to MetaMask and to recipients of software distributed by MetaMask a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by You that are necessarily infringed by Your Contribution(s) alone or by combination of Your Contribution(s) with the Work to which such Contribution(s) was submitted. If any entity institutes patent litigation against You or any other entity (including a cross-claim or counterclaim in a lawsuit) alleging that your Contribution, or the Work to which you have contributed, constitutes direct or contributory patent infringement, then any patent licenses granted to that entity under this Agreement for that Contribution or Work shall terminate as of the date such litigation is filed.