SentinelAgent Guard

SentinelAgent Guard

Firewall for MCP servers and AI agents

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Guard sits in front of your MCP server and runs 22 deterministic checks across five layers on every call. It blocks tool poisoning, rug pulls (CVE-2025-54136), and hidden Unicode payloads in tool descriptions before they land. No AI model does the checking — same verdict every time, no token bill. Point your agent at Guard instead of building this yourself. Three ways to run the same engine: hosted gateway, embedded SDK, or sidecar CLI for Cursor / Claude Code / Copilot stdio servers.

SentinelAgent Guard launches

Launch date
Guard Starter
Guard StarterAllow, ask, or deny every MCP tool call

Launched on September 25th, 2026

SentinelAgent Guard
SentinelAgent GuardFirewall for MCP servers and AI agents

Launched on September 23rd, 2026