SF Public Data License

Effective: 2026-04-18

All SF Public Data (as defined in Terms §13) is released under the Creative Commons Attribution 4.0 International License (CC-BY-4.0).

Full license text: creativecommons.org/licenses/by/4.0/legalcode

What SF Public Data covers

• Content at simplefunctions.dev
• Endpoints under /api/public/*, /api/agent/*, /api/mcp/*
• Datasets at huggingface.co/SimpleFunctions and kaggle.com/simplefunctions
• llms.txt, openapi.json, skill.md
• RSS and sitemap feeds originating from simplefunctions.dev

Attribution format

When you redistribute SF Public Data in substantially its original form, or cite it in published work, include this notice:

SimpleFunctions (simplefunctions.dev) — licensed CC-BY-4.0

A link to simplefunctions.dev or to the specific dataset/endpoint is sufficient for the “link to the license” requirement of CC-BY-4.0 §3(a)(1)(i).

AI training is affirmatively permitted

You may use SF Public Data to train, fine-tune, and evaluate machine-learning models — including commercial models — under the CC-BY-4.0 grant. See Terms §13.3.

Additional contractual terms

Redistribution as a competing public API or service is restricted by Terms §13.2, independent of the CC-BY-4.0 grant. SF’s interpretive authority over terms like “substantial,” “competing,” and “substitute” is set out in Terms §13.7, with current working definitions at /docs/legal-definitions.

Questions: patrick@simplefunctions.dev