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AI · February 13, 2025

ModernGuard: LLM guardrail API

Fast and adaptive security guardrail for AI agents

ModernGuard: LLM guardrail API launched on February 13, 2025 with 7 votes. The site was still online in September 2026, 1 year on.

What it does

ModernGuard is a fast prompt attack detection API, a fine-tuned modernBERT model. It recognize the most recent, common (and uncommon) prompt injection and jailbreaking patterns — and continuously learns from your data and feedback.

See and govern everything your AI agents do — every command, tool call, and data access — across customer-facing, autonomous, and coding agents. Real-time visibility, enforcement, and evidence. In production at the largest fintechs.

Every command, tool call, and data access happens at machine speed — in a blind spot your EDR and DLP can't see. GuardionAI gives security and AI teams real-time visibility, enforcement, and evidence across every agent: customer-facing, autonomous, and coding. Blocking them isn't an option. Neither is leaving them unprotected. Across the industry, incidents are already happening — and traditional DLP and API security weren't built for them. of organizations had — or suspect — an AI agent security incident in the last 12 months. report risky agent behaviors — unauthorized system access and improper data exposure. added to the average breach cost when AI is used without governance or access…from guardion.ai

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