Onyx Platform vs Willow: Side-by-Side Comparison (2026)

Onyx Platform: AI control plane for enterprise AI agent security, governance, and observability. built by Onyx Security. Core capabilities include Real-time AI agent activity monitoring across LLMs and frameworks, Session replay and audit trail for compliance and forensics, Shadow AI and unapproved model deployment detection..

Willow: Control plane for governing enterprise AI agent identity, access, and actions. built by Willow. Core capabilities include AI agent identity verification and authentication, Action-level permission enforcement and policy rules, Self-service employee tool catalog with identity-based provisioning..

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

Onyx Platform differentiates with Real-time AI agent activity monitoring across LLMs and frameworks, Session replay and audit trail for compliance and forensics, Shadow AI and unapproved model deployment detection. Willow differentiates with AI agent identity verification and authentication, Action-level permission enforcement and policy rules, Self-service employee tool catalog with identity-based provisioning.

Onyx Platform is developed by Onyx Security. Willow is developed by Willow. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Onyx Platform integrates with AWS, AWS VPC, AWS Bedrock, GCP, Azure and 6 more. Willow integrates with Claude, Cursor, ChatGPT, Slack, AWS and 2 more. Check integration compatibility with your existing security stack before deciding.

Onyx Platform and Willow serve similar Agentic AI Security use cases: both are Agentic AI Security tools, both cover Agentic AI Security, AI Governance, MCP Security. Review the feature comparison above to determine which fits your requirements.