Agen Shield vs Willow: Side-by-Side Comparison (2026)

Agen Shield: Endpoint & browser enforcement layer blocking dangerous AI agent actions pre-execution. built by Agen.co. Core capabilities include On-device pre-execution blocking of out-of-policy AI agent actions, Browser paste detection and blocking of sensitive data into AI tools, Unified policy plane shared across device, browser, and gateway enforcement..

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.

Agen Shield differentiates with On-device pre-execution blocking of out-of-policy AI agent actions, Browser paste detection and blocking of sensitive data into AI tools, Unified policy plane shared across device, browser, and gateway enforcement. 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.

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

Agen Shield integrates with MDM (Mobile Device Management). Willow integrates with Claude, Cursor, ChatGPT, Slack, AWS and 2 more. Check integration compatibility with your existing security stack before deciding.

Agen Shield 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.