a2ally™ Sign up

Can I use CC BY 4.0 commercially?

Last updated

TL;DR: Commercial use: Yes. Commercial use, modified and redistributed: Yes. Creative Commons Attribution 4.0 International (CC-BY-4.0): Share and adapt the material for any purpose, including commercially, as long as you give credit, link the license and say if you changed it.

Is commercial use allowed under Creative Commons Attribution 4.0 International?

Yes. Every use you described is granted by CC BY 4.0, and nothing you described is prohibited.

License: Creative Commons Attribution 4.0 International (CC-BY-4.0, curated)

Duties: attribution, license_notice, state_changes, no_additional_restrictions

Is commercial use, modified and redistributed allowed under Creative Commons Attribution 4.0 International?

Yes. Every use you described is granted by CC BY 4.0, and nothing you described is prohibited.

License: Creative Commons Attribution 4.0 International (CC-BY-4.0, curated)

Duties: attribution, license_notice, state_changes, no_additional_restrictions

What else should I know?

What are the sources?

How can I check it myself (free, no key)?

{
  "tool": "check_license",
  "arguments": {
    "license": "CC-BY-4.0",
    "intended_use": {
      "commercial_use": true
    }
  }
}

Computed from a2ally's license profiles; not legal advice. JSON · Markdown

Get a free API key in one call

No card and no email needed. 100 free credits; the license and policy checks stay free without a key.

curl -s -X POST https://www.a2ally.com/v1/accounts/signup -H "Content-Type: application/json" -d '{"accept_terms":true}'
export A2ALLY_API_KEY=rs_...   # the api_key from the reply (shown once)
curl -s https://www.a2ally.com/v1/licenses/check -H "Authorization: Bearer $A2ALLY_API_KEY" \
  -H "Content-Type: application/json" -d '{"license":"MIT","intended_use":{"commercial_use":true}}'