FirstHelm vs Onyx Platform: side-by-side comparison (2026)
FirstHelm is a commercial agentic AI security solution by FirstHelm. Onyx Platform is a commercial agentic AI security solution by Onyx Security. Features, integrations, deployment and the company behind each one, side by side.
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AI agent control plane enforcing rules, approvals and audit trails on autonomous agents
AI control plane for enterprise AI agent security, governance, and observability.
Side-by-side comparison
Feature
FirstHelm
Onyx Platform
Pricing model
Commercial
Commercial
Category
Agentic AI Security
Agentic AI Security
Deployment and fit
Deployment type
Cloud
Hybrid
Company size fit
Startup, SMB, Mid-Market, Enterprise
Mid-Market, Enterprise
Company
Company
FirstHelm
Onyx Security
Use cases and capabilities
Agentic AI Security
Yes
Yes
AI Governance
Yes
Yes
AI Compliance
Yes
No
AI Observability
Yes
Yes
Rule Engine
Yes
No
Policy
Yes
No
Security Audit
Yes
No
Alerting
Yes
No
Authorization
Yes
No
REST API
Yes
No
AI SPM
No
Yes
LLM Guardrails
No
Yes
LLM Security
No
Yes
MCP Security
No
Yes
Prompt Injection
No
Yes
Shadow AI
No
Yes
GenAI Security
No
Yes
Core features
10 features listed
10 features listed
Integrations
21 integrations listed
11 integrations listed
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