Agen Observability vs Repello MCP Gateway: Side-by-Side Comparison (2026)

Agen Observability: Discovers, monitors, and governs AI agent & MCP access to enterprise systems. built by Agen.co. Core capabilities include Automated discovery and inventory of all AI agents, copilots, and MCP connections, User monitoring to track which employees are using which AI agents, MCP observability to detect unauthorized or homegrown MCP servers..

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.

Agen Observability differentiates with Automated discovery and inventory of all AI agents, copilots, and MCP connections, User monitoring to track which employees are using which AI agents, MCP observability to detect unauthorized or homegrown MCP servers. Repello MCP Gateway differentiates with Prompt injection detection and blocking, Tool poisoning attack detection, MCP traffic inspection and filtering.

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

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