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License library / Permissive software

BSD 2-Clause "Simplified" License

Redistribute and use in source and binary forms, with or without modification, as long as the copyright notice, conditions and disclaimer are kept.

SPDX BSD-2-Clause Version 2-Clause Official text

Uses at a glance

commercial usePermitted
production deploymentPermitted
modification / derivativesPermitted
redistributionPermitted
sublicensingNot documented
AI model trainingNeeds human review
inference-time use (RAG, prompts, generation)Permitted

Why some uses need review

AI model training. The license grants broad rights but attaches conditions (such as keeping notices) to copies and adaptations. Whether a trained model, or its output, is a copy or adaptation that carries those conditions is legally unsettled, and in some places training may fall under an exception such as fair use. A human reviewer should confirm this use for your case.

Duties

Notes

Resources under this license

No resource in the registry is published under this license yet.

For agents

curl -s https://www.rightshold.com/v1/licenses/check -H 'content-type: application/json' \
  -d '{"license":"BSD-2-Clause","intended_use":{"commercial_use":true,"deployment":true}}'

Reading version 2026-10-09 by the Rightshold rights desk; reference hash 5212f04f05af6c4ca360636e0a374871ea330ad409a68df8517692e03cddf0a1 identifies this license version. The license text governs; this is not legal advice.