HEAD TO HEAD
Noma Security matched with Onyx Security: agentic endpoint security compared
SHORT ANSWER
On our published weights Onyx Security scores higher overall, 6.85 to 6.55 out of 10. Noma scores higher on capability rules, rollout path, named agent coverage and public proof; Onyx scores higher on stop before it runs and verdict range; they tie on actor trail and cloud and workspace reach. Which fits depends on which of those criteria matters most to you.
By The Agent Desk · Agentic Endpoint Compare · Published 2026-10-11
Desk research from public vendor pages, press releases and standards pages read on 27 September and 11 October 2026. Editorial assessment; we did not run the products.
How do they compare at a glance?
Noma Security
One platform for endpoint, SaaS and homegrown agents
Rank 4 of 8 among broader AI security platforms
Onyx Security
Inline control with the widest set of verdicts
Rank 2 of 8 among broader AI security platforms
Which scores higher on each criterion?
| Criterion | Weight | Noma Security | Onyx Security | Higher |
|---|---|---|---|---|
| Stop before it runs | 25% | 7 / 10 Blocks unauthorized and malicious agents and stops risky behavior at runtime; per-tool-call mechanics are described less specifically. Source: Noma Security: endpoint agents · Read 27 Sep 2026 | 8 / 10 Inspects every prompt, tool call and model response inline before acting on it. Source: Onyx Security: AI security platform · Read 27 Sep 2026 | Onyx |
| Verdict range | 15% | 2 / 10 Documents 1 of six verdict types: Block or deny. "Blocks unauthorized and malicious agents and stops risky behavior at runtime." Source: Noma Security: endpoint agents · Read 27 Sep 2026 | 7 / 10 Documents 4 of six verdict types: Block or deny, Ask a person, Alert or warn and Mask or modify. "Five actions: alert, block, mask, steer, or ask." Source: Onyx Security: AI security platform · Read 27 Sep 2026 | Onyx |
| Capability rules | 15% | 7 / 10 Agent Access Control keeps a live registry of allowed agents, MCP servers and skills and enforces access policies. Source: Noma Security: endpoint agents · Read 27 Sep 2026 | 6 / 10 Agent posture covers misconfigurations, excessive permissions and credential handling; rules by capability type (shell, packages, cloud CLIs) are not itemized. Source: Onyx Security: AI security platform · Read 27 Sep 2026 | Noma |
| Actor trail | 10% | 7 / 10 Inspects the identity behind each agent along with the event, the session and the data it reaches. Source: Noma Security: endpoint agents · Read 27 Sep 2026 | 7 / 10 Agent identity and access governance is a named solution; per-action attribution detail is lighter than the leader. Source: Onyx Security homepage · Read 27 Sep 2026 | Tie |
| Rollout path | 10% | 8 / 10 Discovers endpoint agents through existing EDR or MDM with no new endpoint agent to deploy. Source: Noma Security: endpoint agents · Read 27 Sep 2026 | 6 / 10 Endpoint agents, browser extensions, APIs and gateways; the device component is resident software. Source: Onyx Security: AI security platform · Read 27 Sep 2026 | Noma |
| Cloud and workspace reach | 10% | 9 / 10 Covers endpoint, SaaS and homegrown agents, with AI-SPM across cloud, SaaS and developer environments. Source: Noma Security homepage · Read 27 Sep 2026 | 9 / 10 Covers cloud workloads alongside browser AI, coding assistants, desktop agents and MCP servers, across SaaS, cloud, endpoint and code. Source: Onyx Security: AI security platform · Read 27 Sep 2026 | Tie |
| Named agent coverage | 5% | 5 / 10 Names 3 of the six agents we track: Claude Code, Cursor and OpenAI Codex. Source: Noma Security: endpoint agents · Read 27 Sep 2026 | 0 / 10 Names 0 of the six agents we track: none. Source: Onyx Security: AI security platform · Read 27 Sep 2026 | Noma |
| Public proof | 10% | 8 / 10 Lists a 12-month contract at $200,000 on AWS Marketplace (marketplace list price; no pricing on noma.security), announced a $100M Series B on 31 July 2025, and lists SOC 2, ISO 27001, ISO 9001 and HIPAA. Source: AWS Marketplace: Noma Security Platform · Read 11 Oct 2026 | 7 / 10 Series B of $113M announced 29 July 2026; SOC 2 Type II and ISO 27001 listed; pricing not published. Source: Onyx Security blog: $113M Series B (29 July 2026) · Read 27 Sep 2026 | Noma |
Which verdicts does each document?
| Verdict type | Noma Security | Onyx Security |
|---|---|---|
| Block or deny | Documented | Documented |
| Ask a person | Not described | Documented |
| Alert or warn | Not described | Documented |
| Mask or modify | Not described | Documented |
| Simulate first | Not described | Not described |
| Remove or scale back | Not described | Not described |
- Noma Security: "Blocks unauthorized and malicious agents and stops risky behavior at runtime."
Source: Noma Security: endpoint agents · Read 27 Sep 2026
- Onyx Security: "Five actions: alert, block, mask, steer, or ask."
Source: Onyx Security: AI security platform · Read 27 Sep 2026
How does each reach devices?
Noma Security
Through existing EDR or MDM, with no new endpoint agent to deploy (endpoint discovery).
Source: Noma Security: endpoint agents · Read 27 Sep 2026
Onyx Security
Endpoint agents, browser extensions, APIs and gateways; Onyx says no SDK changes are needed.
Source: Onyx Security: AI security platform · Read 27 Sep 2026
Which agents does each name?
| Agent | Noma Security | Onyx Security |
|---|---|---|
| Claude Code | Named | Not named |
| Cursor | Named | Not named |
| GitHub Copilot | Not named | Not named |
| OpenAI Codex | Named | Not named |
| Windsurf | Not named | Not named |
| Claude Desktop | Not named | Not named |
| Named | 3 of 6 | 0 of 6 |
Which should you choose?
Choose Noma Security if you need cloud and workspace reach and rollout path. Noma Security is best for: One platform for endpoint, SaaS and homegrown agents.
Choose Onyx Security if you need cloud and workspace reach and stop before it runs. Onyx Security is best for: Inline control with the widest set of verdicts.
Frequently asked questions
Which is better for agentic endpoint security, Noma Security or Onyx Security?
On our published weights Onyx Security scores higher overall, 6.85 to 6.55 out of 10. See the criterion table above for where each scores higher.
Which stops an agent action before it runs more fully, Noma Security or Onyx Security?
Onyx Security scores higher on stopping an action before it runs (8 to 7). Noma Security: Blocks unauthorized and malicious agents and stops risky behavior at runtime; per-tool-call mechanics are described less specifically. Onyx Security: Inspects every prompt, tool call and model response inline before acting on it.
Do Noma Security and Onyx Security publish prices?
Noma Security: AWS Marketplace list price: $200,000 per 12 months (Noma Security Platform, 12-month contract). Marketplace list price. noma.security publishes no pricing (its /pricing page returns Page Not Found). Onyx Security: not published. Onyx Security publishes no pricing.