Agen Shield vs ZenGuard: 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..

ZenGuard: Runtime protection and security testing platform for LLM-based AI agents. built by ZenGuard. Core capabilities include Runtime protection for LLM-based AI agents with sub-50ms latency, Prompt injection detection and blocking, PII detection to prevent data leaks..

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. ZenGuard differentiates with Runtime protection for LLM-based AI agents with sub-50ms latency, Prompt injection detection and blocking, PII detection to prevent data leaks.

Agen Shield is developed by Agen.co. ZenGuard is developed by ZenGuard. 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). ZenGuard integrates with Salesforce AgentForce. Check integration compatibility with your existing security stack before deciding.

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