Agen.co Discover vs Promptfoo MCP Proxy: Side-by-Side Comparison (2026)

Agen.co Discover: Discovers & inventories all AI agents across IdP, cloud, and endpoints. built by Agen.co. Core capabilities include Continuous AI agent discovery across IdP, cloud, endpoints, and registries, Shadow AI detection, including unapproved and undeclared agents, Agentless, API-based scanning with no endpoint software required..

Promptfoo MCP Proxy: Proxy layer for controlling and monitoring MCP server access in AI apps. built by Promptfoo. Core capabilities include MCP server whitelisting to block unapproved servers, Granular access control per user and application, Real-time monitoring of MCP interactions..

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

Agen.co Discover differentiates with Continuous AI agent discovery across IdP, cloud, endpoints, and registries, Shadow AI detection, including unapproved and undeclared agents, Agentless, API-based scanning with no endpoint software required. Promptfoo MCP Proxy differentiates with MCP server whitelisting to block unapproved servers, Granular access control per user and application, Real-time monitoring of MCP interactions.

Agen.co Discover is developed by Agen.co. Promptfoo MCP Proxy is developed by Promptfoo. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Agen.co Discover and Promptfoo MCP Proxy serve similar Agentic AI Security use cases: both are Agentic AI Security tools, both cover MCP Security, Agentic AI Security, AI Observability. Review the feature comparison above to determine which fits your requirements.