Protect AI

license

MIT(OSI)

source

public(full Python implementation)

self-host

yes

service

none(the OSS toolkit

core-gated

ungated

Fully open source: MIT-licensed, complete source, self-hostable. (Protect AI's commercial platform is a separate product; this is the standalone OSS toolkit.)

• https://github.com/protectai/llm-guard recorded 2026-08-13

  Repo metadata records license spdxId - MIT. README calls it 'an open source solution', documents installing and customizing it yourself and deploying it as an API, and enumerates the prompt and output scanners in the published package; there is no enterprise directory, commercial edition or license key on the page.