Resource answers
Can I use these fonts commercially or for AI training?
Font licenses separate using the font (rendering text, embedding in a PDF or app) from redistributing or modifying the font files.
How can an AI agent check whether it may use fonts?
Call Rightshold's free check_license MCP tool or POST /v1/licenses/check with the license id and the intended uses; you get permitted, prohibited or needs-review with the reason and the duties.
What should I watch for with fonts? (1)
SIL OFL-1.1 fonts can be used commercially and bundled, but a modified font may not keep its Reserved Font Name.
What should I watch for with fonts? (2)
Desktop, web and app embedding are often licensed separately for commercial fonts — check the EULA, not just the name.
What should I watch for with fonts? (3)
Selling the font file on its own is prohibited by most free font licenses.
Common licenses for fonts
- CC0 — commercial: Yes, training: Yes
- CC BY 4.0 — commercial: Yes, training: Needs human review
- CC BY-SA 4.0 — commercial: Yes, training: Needs human review
- CC BY-NC 4.0 — commercial: No, training: Needs human review
- CC BY-ND 4.0 — commercial: Yes, training: Needs human review
- CC BY-NC-SA 4.0 — commercial: No, training: Needs human review
- CC BY-NC-ND 4.0 — commercial: No, training: Needs human review
- OFL 1.1 — commercial: Yes, training: Needs human review
Check by API (free)
curl -s https://www.rightshold.com/v1/licenses/check -H 'content-type: application/json' \
-d '{"license_id":"CC0-1.0","intended_use":{"uses":["commercial_use"]}}'