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.

AI Shield M99 differentiates with 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) differentiates with 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.

AI Shield M99 is developed by Red Specter Security. Lunar.dev MCP Gateway (MCPX) is developed by Lunar.dev. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

AI Shield M99 integrates with Docker, Kubernetes, AWS IAM, AWS Lambda, GCP service accounts. Lunar.dev MCP Gateway (MCPX) integrates with Okta, Azure AD, Lunar.dev AI Gateway. Check integration compatibility with your existing security stack before deciding.

AI Shield M99 and Lunar.dev MCP Gateway (MCPX) serve similar Agentic AI Security use cases: both are Agentic AI Security tools, both cover Agentic AI Security, LLM Security. Review the feature comparison above to determine which fits your requirements.