HiddenLayer AI Runtime Security vs Promptfoo MCP Proxy: side-by-side comparison (2026)

HiddenLayer AI Runtime Security: Real-time detection & response for agentic and generative AI applications. Built by HiddenLayer.

Promptfoo MCP Proxy: Proxy layer for controlling and monitoring MCP server access in AI apps. Built by Promptfoo.

The table above shows where their features, integrations, deployment and company size fit differ.

HiddenLayer AI Runtime Security is made by HiddenLayer. Promptfoo MCP Proxy is made by Promptfoo. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. HiddenLayer AI Runtime Security and Promptfoo MCP Proxy are both Agentic AI Security products, and both cover PII. Use the table above to see where features, deployment and company size fit differ.