CloudMatos Aegis Gateway vs Onyx Platform: Side-by-Side Comparison (2026)

CloudMatos Aegis Gateway

Enterprise and mid-market security teams deploying multi-agent AI systems need CloudMatos Aegis Gateway because it's the only runtime control point that actually stops agent actions before they happen, not after; parameter-level API access control and sub-20ms policy evaluation mean you can enforce governance at the speed agents operate. The tool covers all five NIST CSF 2.0 categories across access control, data protection, and continuous monitoring, with immutable audit logs that satisfy compliance requirements without friction. Skip this if your AI systems are still single-agent or if you're looking for a detection-only solution; Aegis Gateway is built for enforcement, not visibility.

Onyx Platform

Mid-market and enterprise security teams deploying AI agents across multiple LLMs need Onyx Platform because it's the only control plane that catches shadow AI deployments and unapproved model usage before they become compliance violations. The natural language policy engine and real-time prompt injection blocking cover both governance (GV.PO) and continuous monitoring (DE.CM) without requiring security teams to become prompt engineers. Skip this if your organization runs fewer than three LLM integrations or if you need post-incident forensics more than active agent behavior enforcement; the session replay is solid but the tool's real strength is prevention during runtime, not reconstruction after the fact.