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+# Every Cure Knowledge Graph License
+
+The **Every Cure Knowledge Graph (EC KG)** is licensed under the **Creative Commons Attribution 4.0 International License** ([CC BY 4.0](https://choosealicense.com/licenses/cc-by-4.0/)), unless otherwise noted.
+
+This license permits use, distribution, reproduction, and adaptation of the EC KG for any purpose, including commercial use, **provided that appropriate attribution is given** to Every Cure and a link to the license is included.
+
+The EC KG is an **aggregated dataset that integrates multiple external sources. Users must comply with the licenses of the first-level knowledge sources and primary knowledge sources datasets.** Where incorporated source data is subject to restrictions such as **Share-Alike (SA), Non-Commercial (NC), or No Derivatives (ND)**, those restrictions **remain in force for the original content**. 
+
+Accordingly, the EC KG license **does not supersede, replace, or modify** the licenses governing individual upstream datasets. Users are responsible for reviewing and complying with all applicable source licenses in connection with the upstream datasets.
+
+For Every Cure’s own aggregation, **CC BY 4.0 applies exclusively to the integration, curation, harmonization and added metadata** created by Every Cure as part of the EC KG, while **original source licenses continue to govern their respective content**.
+
+A complete list of licenses applicable to:
+
+- **First-level knowledge sources** is available at: https://docs.dev.everycure.org/releases/knowledge_sources/
+- **Primary knowledge sources** aggregated by the first-level knowledge sources is available at: https://docs.dev.everycure.org/releases/primary_knowledge_sources/
+Information on the source of the upstream data or datasets may be included in the EC KG’s metadata. A full attribution statement of the sources and resources used in this work can be found at:
+[https://docs.dev.everycure.org/releases/attribution/](https://docs.dev.everycure.org/releases/attribution/)