Guardian SDK is an open-source component of Ethicore Engine™, designed to protect AI applications from adversarial threats such as prompt injection, jailbreaks, role hijacking, system-prompt extraction, and 45+ additional threat categories. It operates through a four-layer analysis pipeline (Pattern, Semantic, Behavioral, ML) for pre-flight input protection, and includes post-flight output analysis, tool call validation, and tool output scanning for full agentic loop security. The SDK supports integration with OpenAI, Anthropic, Ollama, and LangChain, and offers both a free community edition (local, hash-based) and an API tier with advanced ONNX models and semantic fingerprinting.
