Helmet Platform vs Repello MCP Gateway: Side-by-Side Comparison (2026)

Helmet Platform: AI infrastructure security platform for discovering, securing, and governing AI agents. built by Helmet Security. Core capabilities include Shadow AI agent discovery and detection, Unauthorized MCP server detection and enforcement, Agentless scanning of AI infrastructure..

Repello MCP Gateway: Security gateway for monitoring and protecting MCP-based AI agent tool calls. built by Repello AI. Core capabilities include Prompt injection detection and blocking, Tool poisoning attack detection, MCP traffic inspection and filtering..

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

Helmet Platform differentiates with Shadow AI agent discovery and detection, Unauthorized MCP server detection and enforcement, Agentless scanning of AI infrastructure. Repello MCP Gateway differentiates with Prompt injection detection and blocking, Tool poisoning attack detection, MCP traffic inspection and filtering.

Helmet Platform is developed by Helmet Security. Repello MCP Gateway is developed by Repello AI. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Helmet Platform and Repello MCP Gateway serve similar Agentic AI Security use cases: both are Agentic AI Security tools, both cover Gateway, Policy. Review the feature comparison above to determine which fits your requirements.