The OPENCHM dataset is made available under the Creative Commons CC0 1.0 Universal (Public Domain Dedication) license. You are free to copy, modify, distribute, and use the data, even for commercial purposes, without asking permission.
Images are not included in the dataset and are not part of this API. Rights to visual materials in the CHM collection remain with their respective rights holders. For image licensing inquiries, please contact CHM Collections staff at collections@computerhistory.org.
The data is provided as is for research and educational purposes. This dataset includes in-progress information and may not have been reviewed or approved by curatorial staff. CHM makes no representations or warranties regarding accuracy, completeness, or reliability.
The API and dataset are updated regularly. We recommend syncing with the most current version to ensure you're using the latest information.
Found an error or have supplemental information? Reach out to us at collections@computerhistory.org.
While not legally required under CC0, CHM strongly encourages attribution. Citing the dataset helps us advocate for broader open access, preserve data provenance, and link derived works back to authoritative sources.
If used in a publication or project, please attribute the Computer History Museum as the source.
Do not misrepresent the dataset or suggest endorsement by the Computer History Museum. Avoid using CHM logos or branding in a way that implies affiliation or approval.
If you modify, translate, or enrich the data, clearly indicate that changes have been made. We encourage sharing derived datasets openly and without reuse restrictions.
Please read CHM’s Terms of Use.