Promptfoo MCP Proxy vs Sonoma Security: Side-by-Side Comparison (2026)

Sonoma Security

Enterprise security teams deploying internal AI agents at scale need governance that stops prompt injection and unauthorized data flows before they happen, and Sonoma Security's MCP gateway enforcement does this without requiring agents to be rewritten. The self-hostable deployment and granular entitlement policies mean you can lock down agent behavior without waiting on vendor infrastructure or negotiating with your cloud provider. Skip this if your agents are mostly third-party SaaS integrations or if you need detection and response capabilities after compromise; Sonoma is built for prevention, not forensics.