pytector

Easy to use LLM Prompt Injection Detection and Prompt Input Sanitization / Detector Python Package with support for local models, API-based safeguards, and LangChain guardrails. Maintained by MaxMLang on GitHub, where it has earned 45 stars from the community.

It's actively developed around ai-safety, content-moderation, groq, and is a solid reference for anyone building with these tools.