AI Shield M99 vs Lunar.dev MCP Gateway (MCPX): Side-by-Side Comparison (2026)

AI Shield M99: AI agent kill switch with 6-level graduated response and 7-layer termination. built by Red Specter Security. Core capabilities include 6-level graduated response system with auto-escalation timers, 5-phase kill sequence across 7 infrastructure layers, Signal Skip for critical threats bypassing lower response levels..

Lunar.dev MCP Gateway (MCPX): Gateway for securing, governing, and auditing AI agent access to MCP servers. built by Lunar.dev. Core capabilities include Centralized MCP server registry with service discovery for local and remote servers, Role-based access control (RBAC) with per-agent tool restrictions and on-behalf-of attribution, Authentication to MCP servers via API keys or OAuth..

Both serve the Agentic AI Security market but differ in approach, feature depth, and target audience.