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Overview of the Server Side Public License (SSPL)
SSPL is a license originally created by MongoDB, but open sources such as Hugging Face may also offer this license.
MongoDB originally adopted the GNU Affero General Public License (AGPL), but it was introduced in 2018 to restrict cloud service companies from using MongoDB to provide commercial services.
Basic Approach to SSPL
- Although it is an open source license, it imposes restrictions on cloud service providers.
- You are free to modify and redistribute the software, but certain conditions must be met.
Key Licensing Terms
Freely available cases
- Individuals, businesses, and research institutions download, modify, and use software in-house
- Commercial use as a local app (without cloud connection (standalone))
- Incorporating and using it in OSS projects
- Development and distribution in the OSS community
Limited cases
- When offering as SaaS (commercial service via cloud), all management tools and related source code must also be exposed as OSS
- Or, if you want to offer it as SaaS with private sources, you need to sign a commercial licensing agreement
supplement
- Cloud companies like AWS, Azure, and GCP have licensing restrictions when offering them as a service.
- Within the OSS community, the SSPL is sometimes considered “not an open source license” (not OSI certified).
Full Official License
Server Side Public License (SSPL)
https://www.mongodb.com/legal/licensing/server-side-public-license
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