PromptShield

PromptShield이란?

PromptShield is the only fully open-source, self-hosted security gateway for LLM applications. It catches SSNs, emails, credit cards, passwords, and API keys in real time with PII detection. Define security rules without touching code using simple YAML policies, and see exactly what's being blocked with real-time audit trails. Everything runs on Docker Compose in your own infrastructure. No SaaS, no third parties, no data leaving your systems.