Arthur Shield

Real-time AI firewall that detects and blocks hallucinations, prompt injections, toxic outputs, and sensitive data leakage from AI agents. Arthur Shield sits between your users and LLMs, providing guardrails that ensure safe, accurate, and compliant AI responses in production.
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AI firewall · hallucination detection · prompt injection · AI safety · guardrails · Security & Privacy · Simulation · Arthur Shield · Freemium · free tier · free trial