Spring AI Privacy Guardrails is an open-source Java library that combines PII protection, Spring Security-based tool authorization, and content inspection.
It uses request-scoped PII tokenization, controls which original values authorized tools can receive, and supports rule-based, ONNX, and HTTP-based content inspection.
Built for developers using Spring AI, it protects supported RAG, MCP, chat memory, tool-call, and output boundaries. Modular Spring Boot starters are published on Maven Central.
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