# Open licences: Apache-2.0, MIT and CC BY 4.0

Source: https://onco.cc/terms/open-licences/  
OnCo record `open-licences` (Term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

MIT and Apache-2.0 are permissive software licences that let anyone use, change and redistribute code (Apache adds an explicit patent grant); CC BY 4.0 is the equivalent for data and text, requiring only attribution.

## Summary

The Apache License is a permissive free-software licence from the Apache Software Foundation allowing use, modification and distribution for any purpose, with patent provisions (Wikipedia); the MIT License is shorter and puts few restrictions on reuse (Wikipedia). Creative Commons licences let authors grant the public rights to share and build on a work, with CC BY requiring attribution and the NC variants forbidding commercial use (Wikipedia). MSigDB, Visium demo data and DepMap releases are CC BY 4.0; BulkFormer's code is MIT; BulkRNABert's CC BY-NC-SA terms exclude products. OnCo's own content is CC BY-NC 4.0 and this term set is redistributed from a CC BY 4.0 source.

## Fields

- Kind: Term
- Last checked: 2026-09-24
- Also known as: Apache-2.0; Apache 2.0 licence; Apache License 2.0; MIT licence; MIT License; CC BY 4.0; CC-BY-4.0; Creative Commons Attribution 4.0; CC BY-NC; permissive licence; open licence
- Tags: cansim-terms

## Notes

- Listed in the CanSim terms map 1.0.0 (docs/onco/terms.json, generated 2026-09-24), CC BY 4.0, attribution: CanSim project, an open, public-data-first cancer foundation-model programme; CanSim page path /terms/licences.

## Sources

- Wikipedia: https://en.wikipedia.org/wiki/Apache_License
- Wikipedia: MIT License: https://en.wikipedia.org/wiki/MIT_License
- Wikipedia: Creative Commons license: https://en.wikipedia.org/wiki/Creative_Commons_license
- Wikipedia: https://en.wikipedia.org/wiki/Apache_License

## Connected records

- terms: [Cancer AI vocabulary (CanSim terms map)](https://onco.cc/terms/cancer-ai-vocabulary/), [CITATION.cff (Citation File Format)](https://onco.cc/terms/citation-cff/), [Open weights, open code and gated models](https://onco.cc/terms/open-weights/), [Zenodo DOIs for data and code](https://onco.cc/terms/zenodo-doi/)

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JSON: https://onco.cc/api/v1/entities/open-licences.json